956 lines
28 KiB
Plaintext
956 lines
28 KiB
Plaintext
# DO NOT EDIT. This file is generated from Config.src
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#
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# For a description of the syntax of this configuration file,
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# see docs/Kconfig-language.txt.
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#
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menu "Linux System Utilities"
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config ACPID
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bool "acpid (9 kb)"
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default y
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help
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acpid listens to ACPI events coming either in textual form from
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/proc/acpi/event (though it is marked deprecated it is still widely
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used and _is_ a standard) or in binary form from specified evdevs
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(just use /dev/input/event*).
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It parses the event to retrieve ACTION and a possible PARAMETER.
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It then spawns /etc/acpi/<ACTION>[/<PARAMETER>] either via run-parts
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(if the resulting path is a directory) or directly as an executable.
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N.B. acpid relies on run-parts so have the latter installed.
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config FEATURE_ACPID_COMPAT
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bool "Accept and ignore redundant options"
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default y
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depends on ACPID
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help
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Accept and ignore compatibility options -g -m -s -S -v.
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config BLKDISCARD
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bool "blkdiscard (4.3 kb)"
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default y
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help
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blkdiscard discards sectors on a given device.
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config BLKID
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bool "blkid (12 kb)"
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default y
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select VOLUMEID
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help
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Lists labels and UUIDs of all filesystems.
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config FEATURE_BLKID_TYPE
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bool "Print filesystem type"
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default y
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depends on BLKID
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help
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Show TYPE="filesystem type"
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config BLOCKDEV
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bool "blockdev (2.3 kb)"
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default y
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help
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Performs some ioctls with block devices.
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config CAL
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bool "cal (5.8 kb)"
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default y
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help
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cal is used to display a monthly calendar.
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config CHRT
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bool "chrt (4.7 kb)"
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default y
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help
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Manipulate real-time attributes of a process.
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This requires sched_{g,s}etparam support in your libc.
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config DMESG
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bool "dmesg (3.7 kb)"
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default y
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help
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dmesg is used to examine or control the kernel ring buffer. When the
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Linux kernel prints messages to the system log, they are stored in
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the kernel ring buffer. You can use dmesg to print the kernel's ring
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buffer, clear the kernel ring buffer, change the size of the kernel
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ring buffer, and change the priority level at which kernel messages
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are also logged to the system console. Enable this option if you
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wish to enable the 'dmesg' utility.
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config FEATURE_DMESG_PRETTY
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bool "Pretty output"
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default y
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depends on DMESG
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help
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If you wish to scrub the syslog level from the output, say 'Y' here.
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The syslog level is a string prefixed to every line with the form
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"<#>".
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With this option you will see:
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# dmesg
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Linux version 2.6.17.4 .....
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BIOS-provided physical RAM map:
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BIOS-e820: 0000000000000000 - 000000000009f000 (usable)
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Without this option you will see:
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# dmesg
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<5>Linux version 2.6.17.4 .....
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<6>BIOS-provided physical RAM map:
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<6> BIOS-e820: 0000000000000000 - 000000000009f000 (usable)
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config EJECT
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bool "eject (4 kb)"
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default y
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help
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Used to eject cdroms. (defaults to /dev/cdrom)
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config FEATURE_EJECT_SCSI
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bool "SCSI support"
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default y
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depends on EJECT
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help
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Add the -s option to eject, this allows to eject SCSI-Devices and
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usb-storage devices.
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config FALLOCATE
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bool "fallocate (4.1 kb)"
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default y
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help
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Preallocate space for files.
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config FATATTR
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bool "fatattr (1.9 kb)"
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default y
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help
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fatattr lists or changes the file attributes on a fat file system.
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config FBSET
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bool "fbset (5.9 kb)"
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default y
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help
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fbset is used to show or change the settings of a Linux frame buffer
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device. The frame buffer device provides a simple and unique
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interface to access a graphics display. Enable this option
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if you wish to enable the 'fbset' utility.
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config FEATURE_FBSET_FANCY
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bool "Enable extra options"
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default y
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depends on FBSET
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help
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This option enables extended fbset options, allowing one to set the
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framebuffer size, color depth, etc. interface to access a graphics
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display. Enable this option if you wish to enable extended fbset
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options.
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config FEATURE_FBSET_READMODE
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bool "Enable readmode support"
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default y
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depends on FBSET
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help
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This option allows fbset to read the video mode database stored by
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default as /etc/fb.modes, which can be used to set frame buffer
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device to pre-defined video modes.
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config FDFORMAT
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bool "fdformat (4.4 kb)"
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default y
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help
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fdformat is used to low-level format a floppy disk.
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config FDISK
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bool "fdisk (37 kb)"
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default y
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help
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The fdisk utility is used to divide hard disks into one or more
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logical disks, which are generally called partitions. This utility
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can be used to list and edit the set of partitions or BSD style
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'disk slices' that are defined on a hard drive.
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config FDISK_SUPPORT_LARGE_DISKS
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bool "Support over 4GB disks"
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default y
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depends on FDISK
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depends on !LFS # with LFS no special code is needed
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config FEATURE_FDISK_WRITABLE
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bool "Write support"
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default y
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depends on FDISK
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help
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Enabling this option allows you to create or change a partition table
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and write those changes out to disk. If you leave this option
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disabled, you will only be able to view the partition table.
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config FEATURE_AIX_LABEL
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bool "Support AIX disklabels"
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default n
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depends on FDISK && FEATURE_FDISK_WRITABLE
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help
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Enabling this option allows you to create or change AIX disklabels.
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Most people can safely leave this option disabled.
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config FEATURE_SGI_LABEL
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bool "Support SGI disklabels"
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default n
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depends on FDISK && FEATURE_FDISK_WRITABLE
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help
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Enabling this option allows you to create or change SGI disklabels.
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Most people can safely leave this option disabled.
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config FEATURE_SUN_LABEL
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bool "Support SUN disklabels"
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default n
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depends on FDISK && FEATURE_FDISK_WRITABLE
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help
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Enabling this option allows you to create or change SUN disklabels.
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Most people can safely leave this option disabled.
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config FEATURE_OSF_LABEL
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bool "Support BSD disklabels"
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default n
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depends on FDISK && FEATURE_FDISK_WRITABLE
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help
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Enabling this option allows you to create or change BSD disklabels
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and define and edit BSD disk slices.
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config FEATURE_GPT_LABEL
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bool "Support GPT disklabels"
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default n
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depends on FDISK && FEATURE_FDISK_WRITABLE
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help
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Enabling this option allows you to view GUID Partition Table
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disklabels.
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config FEATURE_FDISK_ADVANCED
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bool "Support expert mode"
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default y
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depends on FDISK && FEATURE_FDISK_WRITABLE
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help
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Enabling this option allows you to do terribly unsafe things like
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define arbitrary drive geometry, move the beginning of data in a
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partition, and similarly evil things. Unless you have a very good
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reason you would be wise to leave this disabled.
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config FINDFS
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bool "findfs (12 kb)"
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default y
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select VOLUMEID
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help
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Prints the name of a filesystem with given label or UUID.
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config FLOCK
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bool "flock (6.3 kb)"
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default y
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help
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Manage locks from shell scripts
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config FDFLUSH
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bool "fdflush (1.3 kb)"
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default y
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help
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fdflush is only needed when changing media on slightly-broken
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removable media drives. It is used to make Linux believe that a
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hardware disk-change switch has been actuated, which causes Linux to
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forget anything it has cached from the previous media. If you have
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such a slightly-broken drive, you will need to run fdflush every time
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you change a disk. Most people have working hardware and can safely
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leave this disabled.
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config FREERAMDISK
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bool "freeramdisk (1.3 kb)"
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default y
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help
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Linux allows you to create ramdisks. This utility allows you to
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delete them and completely free all memory that was used for the
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ramdisk. For example, if you boot Linux into a ramdisk and later
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pivot_root, you may want to free the memory that is allocated to the
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ramdisk. If you have no use for freeing memory from a ramdisk, leave
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this disabled.
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config FSCK_MINIX
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bool "fsck.minix (13 kb)"
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default y
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help
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The minix filesystem is a nice, small, compact, read-write filesystem
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with little overhead. It is not a journaling filesystem however and
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can experience corruption if it is not properly unmounted or if the
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power goes off in the middle of a write. This utility allows you to
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check for and attempt to repair any corruption that occurs to a minix
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filesystem.
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config FSFREEZE
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bool "fsfreeze (3.5 kb)"
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default y
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select LONG_OPTS
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help
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Halt new accesses and flush writes on a mounted filesystem.
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config FSTRIM
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bool "fstrim (4.4 kb)"
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default y
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help
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Discard unused blocks on a mounted filesystem.
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config GETOPT
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bool "getopt (5.8 kb)"
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default y
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help
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The getopt utility is used to break up (parse) options in command
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lines to make it easy to write complex shell scripts that also check
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for legal (and illegal) options. If you want to write horribly
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complex shell scripts, or use some horribly complex shell script
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written by others, this utility may be for you. Most people will
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wisely leave this disabled.
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config FEATURE_GETOPT_LONG
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bool "Support -l LONGOPTs"
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default y
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depends on GETOPT && LONG_OPTS
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help
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Enable support for long options (option -l).
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config HEXDUMP
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bool "hexdump (8.6 kb)"
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default y
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help
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The hexdump utility is used to display binary data in a readable
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way that is comparable to the output from most hex editors.
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config HD
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bool "hd (7.8 kb)"
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default y
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help
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hd is an alias to hexdump -C.
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config XXD
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bool "xxd (8.9 kb)"
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default y
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help
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The xxd utility is used to display binary data in a readable
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way that is comparable to the output from most hex editors.
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config HWCLOCK
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bool "hwclock (5.8 kb)"
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default y
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help
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The hwclock utility is used to read and set the hardware clock
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on a system. This is primarily used to set the current time on
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shutdown in the hardware clock, so the hardware will keep the
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correct time when Linux is _not_ running.
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config FEATURE_HWCLOCK_ADJTIME_FHS
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bool "Use FHS /var/lib/hwclock/adjtime"
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default n # util-linux-ng in Fedora 13 still uses /etc/adjtime
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depends on HWCLOCK
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help
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Starting with FHS 2.3, the adjtime state file is supposed to exist
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at /var/lib/hwclock/adjtime instead of /etc/adjtime. If you wish
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to use the FHS behavior, answer Y here, otherwise answer N for the
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classic /etc/adjtime path.
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pathname.com/fhs/pub/fhs-2.3.html#VARLIBHWCLOCKSTATEDIRECTORYFORHWCLO
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config IONICE
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bool "ionice (3.8 kb)"
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default y
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help
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Set/set program io scheduling class and priority
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Requires kernel >= 2.6.13
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config IPCRM
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bool "ipcrm (3.2 kb)"
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default y
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help
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The ipcrm utility allows the removal of System V interprocess
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communication (IPC) objects and the associated data structures
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from the system.
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config IPCS
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bool "ipcs (11 kb)"
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default y
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help
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The ipcs utility is used to provide information on the currently
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allocated System V interprocess (IPC) objects in the system.
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config LAST
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bool "last (6.1 kb)"
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default y
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depends on FEATURE_WTMP
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help
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'last' displays a list of the last users that logged into the system.
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config FEATURE_LAST_FANCY
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bool "Output extra information"
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default y
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depends on LAST
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help
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'last' displays detailed information about the last users that
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logged into the system (mimics sysvinit last). +900 bytes.
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config LOSETUP
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bool "losetup (5.5 kb)"
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default y
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help
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losetup is used to associate or detach a loop device with a regular
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file or block device, and to query the status of a loop device. This
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version does not currently support enabling data encryption.
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config LSPCI
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bool "lspci (6.3 kb)"
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default y
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help
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lspci is a utility for displaying information about PCI buses in the
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system and devices connected to them.
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This version uses sysfs (/sys/bus/pci/devices) only.
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config LSUSB
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bool "lsusb (4.2 kb)"
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default y
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help
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lsusb is a utility for displaying information about USB buses in the
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system and devices connected to them.
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This version uses sysfs (/sys/bus/usb/devices) only.
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config MDEV
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bool "mdev (17 kb)"
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default y
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help
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mdev is a mini-udev implementation for dynamically creating device
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nodes in the /dev directory.
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For more information, please see docs/mdev.txt
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config FEATURE_MDEV_CONF
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bool "Support /etc/mdev.conf"
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default y
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depends on MDEV
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help
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Add support for the mdev config file to control ownership and
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permissions of the device nodes.
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For more information, please see docs/mdev.txt
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config FEATURE_MDEV_RENAME
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bool "Support subdirs/symlinks"
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default y
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depends on FEATURE_MDEV_CONF
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help
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Add support for renaming devices and creating symlinks.
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For more information, please see docs/mdev.txt
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config FEATURE_MDEV_RENAME_REGEXP
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bool "Support regular expressions substitutions when renaming device"
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default y
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depends on FEATURE_MDEV_RENAME
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help
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Add support for regular expressions substitutions when renaming
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device.
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config FEATURE_MDEV_EXEC
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bool "Support command execution at device addition/removal"
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default y
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depends on FEATURE_MDEV_CONF
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help
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This adds support for an optional field to /etc/mdev.conf for
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executing commands when devices are created/removed.
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For more information, please see docs/mdev.txt
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config FEATURE_MDEV_LOAD_FIRMWARE
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bool "Support loading of firmware"
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default y
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depends on MDEV
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help
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Some devices need to load firmware before they can be usable.
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These devices will request userspace look up the files in
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/lib/firmware/ and if it exists, send it to the kernel for
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loading into the hardware.
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config FEATURE_MDEV_DAEMON
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bool "Support daemon mode"
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default y
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depends on MDEV
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help
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Adds the -d option to run mdev in daemon mode handling hotplug
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events from the kernel like udev. If the system generates many
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hotplug events this mode of operation will consume less
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resources than registering mdev as hotplug helper or using the
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uevent applet.
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config MESG
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bool "mesg (1.4 kb)"
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default y
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help
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Mesg controls access to your terminal by others. It is typically
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used to allow or disallow other users to write to your terminal
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config FEATURE_MESG_ENABLE_ONLY_GROUP
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bool "Enable writing to tty only by group, not by everybody"
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default y
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depends on MESG
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help
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Usually, ttys are owned by group "tty", and "write" tool is
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setgid to this group. This way, "mesg y" only needs to enable
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"write by owning group" bit in tty mode.
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If you set this option to N, "mesg y" will enable writing
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by anybody at all. This is not recommended.
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config MKE2FS
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bool "mke2fs (10 kb)"
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default y
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help
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Utility to create EXT2 filesystems.
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config MKFS_EXT2
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bool "mkfs.ext2 (10 kb)"
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default y
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help
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Alias to "mke2fs".
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config MKFS_MINIX
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bool "mkfs.minix (10 kb)"
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default y
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help
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The minix filesystem is a nice, small, compact, read-write filesystem
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with little overhead. If you wish to be able to create minix
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filesystems this utility will do the job for you.
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config FEATURE_MINIX2
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bool "Support Minix fs v2 (fsck_minix/mkfs_minix)"
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default y
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depends on FSCK_MINIX || MKFS_MINIX
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help
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If you wish to be able to create version 2 minix filesystems, enable
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this. If you enabled 'mkfs_minix' then you almost certainly want to
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be using the version 2 filesystem support.
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config MKFS_REISER
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bool "mkfs_reiser"
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default n
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help
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Utility to create ReiserFS filesystems.
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Note: this applet needs a lot of testing and polishing.
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config MKDOSFS
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bool "mkdosfs (7.2 kb)"
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default y
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help
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Utility to create FAT32 filesystems.
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config MKFS_VFAT
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bool "mkfs.vfat (7.2 kb)"
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default y
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help
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Alias to "mkdosfs".
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config MKSWAP
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bool "mkswap (6.3 kb)"
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default y
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help
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The mkswap utility is used to configure a file or disk partition as
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Linux swap space. This allows Linux to use the entire file or
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partition as if it were additional RAM, which can greatly increase
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the capability of low-memory machines. This additional memory is
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much slower than real RAM, but can be very helpful at preventing your
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applications being killed by the Linux out of memory (OOM) killer.
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Once you have created swap space using 'mkswap' you need to enable
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the swap space using the 'swapon' utility.
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config FEATURE_MKSWAP_UUID
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bool "UUID support"
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default y
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depends on MKSWAP
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help
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Generate swap spaces with universally unique identifiers.
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config MORE
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bool "more (7 kb)"
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default y
|
|
help
|
|
more is a simple utility which allows you to read text one screen
|
|
sized page at a time. If you want to read text that is larger than
|
|
the screen, and you are using anything faster than a 300 baud modem,
|
|
you will probably find this utility very helpful. If you don't have
|
|
any need to reading text files, you can leave this disabled.
|
|
config MOUNT
|
|
bool "mount (23 kb)"
|
|
default y
|
|
help
|
|
All files and filesystems in Unix are arranged into one big directory
|
|
tree. The 'mount' utility is used to graft a filesystem onto a
|
|
particular part of the tree. A filesystem can either live on a block
|
|
device, or it can be accessible over the network, as is the case with
|
|
NFS filesystems.
|
|
|
|
config FEATURE_MOUNT_FAKE
|
|
bool "Support -f (fake mount)"
|
|
default y
|
|
depends on MOUNT
|
|
help
|
|
Enable support for faking a file system mount.
|
|
|
|
config FEATURE_MOUNT_VERBOSE
|
|
bool "Support -v (verbose)"
|
|
default y
|
|
depends on MOUNT
|
|
help
|
|
Enable multi-level -v[vv...] verbose messages. Useful if you
|
|
debug mount problems and want to see what is exactly passed
|
|
to the kernel.
|
|
|
|
config FEATURE_MOUNT_HELPERS
|
|
bool "Support mount helpers"
|
|
default n
|
|
depends on MOUNT
|
|
help
|
|
Enable mounting of virtual file systems via external helpers.
|
|
E.g. "mount obexfs#-b00.11.22.33.44.55 /mnt" will in effect call
|
|
"obexfs -b00.11.22.33.44.55 /mnt"
|
|
Also "mount -t sometype [-o opts] fs /mnt" will try
|
|
"sometype [-o opts] fs /mnt" if simple mount syscall fails.
|
|
The idea is to use such virtual filesystems in /etc/fstab.
|
|
|
|
config FEATURE_MOUNT_LABEL
|
|
bool "Support specifying devices by label or UUID"
|
|
default y
|
|
depends on MOUNT
|
|
select VOLUMEID
|
|
help
|
|
This allows for specifying a device by label or uuid, rather than by
|
|
name. This feature utilizes the same functionality as blkid/findfs.
|
|
|
|
config FEATURE_MOUNT_NFS
|
|
bool "Support mounting NFS file systems on Linux < 2.6.23"
|
|
default n
|
|
depends on MOUNT
|
|
select FEATURE_SYSLOG
|
|
help
|
|
Enable mounting of NFS file systems on Linux kernels prior
|
|
to version 2.6.23. Note that in this case mounting of NFS
|
|
over IPv6 will not be possible.
|
|
|
|
Note that this option links in RPC support from libc,
|
|
which is rather large (~10 kbytes on uclibc).
|
|
|
|
config FEATURE_MOUNT_CIFS
|
|
bool "Support mounting CIFS/SMB file systems"
|
|
default y
|
|
depends on MOUNT
|
|
help
|
|
Enable support for samba mounts.
|
|
|
|
config FEATURE_MOUNT_FLAGS
|
|
depends on MOUNT
|
|
bool "Support lots of -o flags"
|
|
default y
|
|
help
|
|
Without this, mount only supports ro/rw/remount. With this, it
|
|
supports nosuid, suid, dev, nodev, exec, noexec, sync, async, atime,
|
|
noatime, diratime, nodiratime, loud, bind, move, shared, slave,
|
|
private, unbindable, rshared, rslave, rprivate, and runbindable.
|
|
|
|
config FEATURE_MOUNT_FSTAB
|
|
depends on MOUNT
|
|
bool "Support /etc/fstab and -a (mount all)"
|
|
default y
|
|
help
|
|
Support mount all and looking for files in /etc/fstab.
|
|
|
|
config FEATURE_MOUNT_OTHERTAB
|
|
depends on FEATURE_MOUNT_FSTAB
|
|
bool "Support -T <alt_fstab>"
|
|
default y
|
|
help
|
|
Support mount -T (specifying an alternate fstab)
|
|
config MOUNTPOINT
|
|
bool "mountpoint (4.9 kb)"
|
|
default y
|
|
help
|
|
mountpoint checks if the directory is a mountpoint.
|
|
config NOLOGIN
|
|
bool "nologin"
|
|
default y
|
|
depends on FEATURE_SH_EMBEDDED_SCRIPTS
|
|
help
|
|
Politely refuse a login
|
|
|
|
config NOLOGIN_DEPENDENCIES
|
|
bool "Enable dependencies for nologin"
|
|
default n # Y default makes it harder to select single-applet test
|
|
depends on NOLOGIN
|
|
select CAT
|
|
select ECHO
|
|
select SLEEP
|
|
help
|
|
nologin is implemented as a shell script. It requires the
|
|
following in the runtime environment:
|
|
cat echo sleep
|
|
If you know these will be available externally you can
|
|
disable this option.
|
|
config NSENTER
|
|
bool "nsenter (6.5 kb)"
|
|
default y
|
|
help
|
|
Run program with namespaces of other processes.
|
|
config PIVOT_ROOT
|
|
bool "pivot_root (1.1 kb)"
|
|
default y
|
|
help
|
|
The pivot_root utility swaps the mount points for the root filesystem
|
|
with some other mounted filesystem. This allows you to do all sorts
|
|
of wild and crazy things with your Linux system and is far more
|
|
powerful than 'chroot'.
|
|
|
|
Note: This is for initrd in linux 2.4. Under initramfs (introduced
|
|
in linux 2.6) use switch_root instead.
|
|
config RDATE
|
|
bool "rdate (5.6 kb)"
|
|
default y
|
|
help
|
|
The rdate utility allows you to synchronize the date and time of your
|
|
system clock with the date and time of a remote networked system using
|
|
the RFC868 protocol, which is built into the inetd daemon on most
|
|
systems.
|
|
config RDEV
|
|
bool "rdev (1.8 kb)"
|
|
default y
|
|
help
|
|
Print the device node associated with the filesystem mounted at '/'.
|
|
config READPROFILE
|
|
bool "readprofile (7.1 kb)"
|
|
default y
|
|
help
|
|
This allows you to parse /proc/profile for basic profiling.
|
|
config RENICE
|
|
bool "renice (4.2 kb)"
|
|
default y
|
|
help
|
|
Renice alters the scheduling priority of one or more running
|
|
processes.
|
|
config REV
|
|
bool "rev (4.4 kb)"
|
|
default y
|
|
help
|
|
Reverse lines of a file or files.
|
|
config RTCWAKE
|
|
bool "rtcwake (6.8 kb)"
|
|
default y
|
|
help
|
|
Enter a system sleep state until specified wakeup time.
|
|
config SCRIPT
|
|
bool "script (8.6 kb)"
|
|
default y
|
|
help
|
|
The script makes typescript of terminal session.
|
|
config SCRIPTREPLAY
|
|
bool "scriptreplay (2.4 kb)"
|
|
default y
|
|
help
|
|
This program replays a typescript, using timing information
|
|
given by script -t.
|
|
config SETARCH
|
|
bool "setarch (3.6 kb)"
|
|
default y
|
|
help
|
|
The linux32 utility is used to create a 32bit environment for the
|
|
specified program (usually a shell). It only makes sense to have
|
|
this util on a system that supports both 64bit and 32bit userland
|
|
(like amd64/x86, ppc64/ppc, sparc64/sparc, etc...).
|
|
|
|
config LINUX32
|
|
bool "linux32 (3.3 kb)"
|
|
default y
|
|
help
|
|
Alias to "setarch linux32".
|
|
|
|
config LINUX64
|
|
bool "linux64 (3.3 kb)"
|
|
default y
|
|
help
|
|
Alias to "setarch linux64".
|
|
config SETPRIV
|
|
bool "setpriv (6.6 kb)"
|
|
default y
|
|
select LONG_OPTS
|
|
help
|
|
Run a program with different Linux privilege settings.
|
|
Requires kernel >= 3.5
|
|
|
|
config FEATURE_SETPRIV_DUMP
|
|
bool "Support dumping current privilege state"
|
|
default y
|
|
depends on SETPRIV
|
|
help
|
|
Enables the "--dump" switch to print out the current privilege
|
|
state. This is helpful for diagnosing problems.
|
|
|
|
config FEATURE_SETPRIV_CAPABILITIES
|
|
bool "Support capabilities"
|
|
default y
|
|
depends on SETPRIV
|
|
help
|
|
Capabilities can be used to grant processes additional rights
|
|
without the necessity to always execute as the root user.
|
|
Enabling this option enables "--dump" to show information on
|
|
capabilities.
|
|
|
|
config FEATURE_SETPRIV_CAPABILITY_NAMES
|
|
bool "Support capability names"
|
|
default y
|
|
depends on SETPRIV && FEATURE_SETPRIV_CAPABILITIES
|
|
help
|
|
Capabilities can be either referenced via a human-readble name,
|
|
e.g. "net_admin", or using their index, e.g. "cap_12". Enabling
|
|
this option allows using the human-readable names in addition to
|
|
the index-based names.
|
|
config SETSID
|
|
bool "setsid (3.6 kb)"
|
|
default y
|
|
help
|
|
setsid runs a program in a new session
|
|
config SWAPON
|
|
bool "swapon (15 kb)"
|
|
default y
|
|
help
|
|
Once you have created some swap space using 'mkswap', you also need
|
|
to enable your swap space with the 'swapon' utility. The 'swapoff'
|
|
utility is used, typically at system shutdown, to disable any swap
|
|
space. If you are not using any swap space, you can leave this
|
|
option disabled.
|
|
|
|
config FEATURE_SWAPON_DISCARD
|
|
bool "Support discard option -d"
|
|
default y
|
|
depends on SWAPON
|
|
help
|
|
Enable support for discarding swap area blocks at swapon and/or as
|
|
the kernel frees them. This option enables both the -d option on
|
|
'swapon' and the 'discard' option for swap entries in /etc/fstab.
|
|
|
|
config FEATURE_SWAPON_PRI
|
|
bool "Support priority option -p"
|
|
default y
|
|
depends on SWAPON
|
|
help
|
|
Enable support for setting swap device priority in swapon.
|
|
|
|
config SWAPOFF
|
|
bool "swapoff (14 kb)"
|
|
default y
|
|
|
|
config FEATURE_SWAPONOFF_LABEL
|
|
bool "Support specifying devices by label or UUID"
|
|
default y
|
|
depends on SWAPON || SWAPOFF
|
|
select VOLUMEID
|
|
help
|
|
This allows for specifying a device by label or uuid, rather than by
|
|
name. This feature utilizes the same functionality as blkid/findfs.
|
|
config SWITCH_ROOT
|
|
bool "switch_root (5.5 kb)"
|
|
default y
|
|
help
|
|
The switch_root utility is used from initramfs to select a new
|
|
root device. Under initramfs, you have to use this instead of
|
|
pivot_root. (Stop reading here if you don't care why.)
|
|
|
|
Booting with initramfs extracts a gzipped cpio archive into rootfs
|
|
(which is a variant of ramfs/tmpfs). Because rootfs can't be moved
|
|
or unmounted*, pivot_root will not work from initramfs. Instead,
|
|
switch_root deletes everything out of rootfs (including itself),
|
|
does a mount --move that overmounts rootfs with the new root, and
|
|
then execs the specified init program.
|
|
|
|
* Because the Linux kernel uses rootfs internally as the starting
|
|
and ending point for searching through the kernel's doubly linked
|
|
list of active mount points. That's why.
|
|
|
|
config TASKSET
|
|
bool "taskset (4.2 kb)"
|
|
default y
|
|
help
|
|
Retrieve or set a processes's CPU affinity.
|
|
This requires sched_{g,s}etaffinity support in your libc.
|
|
|
|
config FEATURE_TASKSET_FANCY
|
|
bool "Fancy output"
|
|
default y
|
|
depends on TASKSET
|
|
help
|
|
Needed for machines with more than 32-64 CPUs:
|
|
affinity parameter 0xHHHHHHHHHHHHHHHHHHHH can be arbitrarily long
|
|
in this case. Otherwise, it is limited to sizeof(long).
|
|
|
|
config FEATURE_TASKSET_CPULIST
|
|
bool "CPU list support (-c option)"
|
|
default y
|
|
depends on FEATURE_TASKSET_FANCY
|
|
help
|
|
Add support for taking/printing affinity as CPU list when '-c'
|
|
option is used. For example, it prints '0-3,7' instead of mask '8f'.
|
|
config UEVENT
|
|
bool "uevent (3.1 kb)"
|
|
default y
|
|
help
|
|
uevent is a netlink listener for kernel uevent notifications
|
|
sent via netlink. It is usually used for dynamic device creation.
|
|
config UMOUNT
|
|
bool "umount (5.1 kb)"
|
|
default y
|
|
help
|
|
When you want to remove a mounted filesystem from its current mount
|
|
point, for example when you are shutting down the system, the
|
|
'umount' utility is the tool to use. If you enabled the 'mount'
|
|
utility, you almost certainly also want to enable 'umount'.
|
|
|
|
config FEATURE_UMOUNT_ALL
|
|
bool "Support -a (unmount all)"
|
|
default y
|
|
depends on UMOUNT
|
|
help
|
|
Support -a option to unmount all currently mounted filesystems.
|
|
config UNSHARE
|
|
bool "unshare (7.2 kb)"
|
|
default y
|
|
depends on !NOMMU
|
|
select LONG_OPTS
|
|
help
|
|
Run program with some namespaces unshared from parent.
|
|
config WALL
|
|
bool "wall (2.6 kb)"
|
|
default y
|
|
depends on FEATURE_UTMP
|
|
help
|
|
Write a message to all users that are logged in.
|
|
|
|
comment "Common options for mount/umount"
|
|
depends on MOUNT || UMOUNT
|
|
|
|
config FEATURE_MOUNT_LOOP
|
|
bool "Support loopback mounts"
|
|
default y
|
|
depends on MOUNT || UMOUNT
|
|
help
|
|
Enabling this feature allows automatic mounting of files (containing
|
|
filesystem images) via the linux kernel's loopback devices.
|
|
The mount command will detect you are trying to mount a file instead
|
|
of a block device, and transparently associate the file with a
|
|
loopback device. The umount command will also free that loopback
|
|
device.
|
|
|
|
You can still use the 'losetup' utility (to manually associate files
|
|
with loop devices) if you need to do something advanced, such as
|
|
specify an offset or cryptographic options to the loopback device.
|
|
(If you don't want umount to free the loop device, use "umount -D".)
|
|
|
|
config FEATURE_MOUNT_LOOP_CREATE
|
|
bool "Create new loopback devices if needed"
|
|
default y
|
|
depends on FEATURE_MOUNT_LOOP
|
|
help
|
|
Linux kernels >= 2.6.24 support unlimited loopback devices. They are
|
|
allocated for use when trying to use a loop device. The loop device
|
|
must however exist.
|
|
|
|
This feature lets mount to try to create next /dev/loopN device
|
|
if it does not find a free one.
|
|
|
|
config FEATURE_MTAB_SUPPORT
|
|
bool "Support old /etc/mtab file"
|
|
default n
|
|
depends on MOUNT || UMOUNT
|
|
select FEATURE_MOUNT_FAKE
|
|
help
|
|
Historically, Unix systems kept track of the currently mounted
|
|
partitions in the file "/etc/mtab". These days, the kernel exports
|
|
the list of currently mounted partitions in "/proc/mounts", rendering
|
|
the old mtab file obsolete. (In modern systems, /etc/mtab should be
|
|
a symlink to /proc/mounts.)
|
|
|
|
The only reason to have mount maintain an /etc/mtab file itself is if
|
|
your stripped-down embedded system does not have a /proc directory.
|
|
If you must use this, keep in mind it's inherently brittle (for
|
|
example a mount under chroot won't update it), can't handle modern
|
|
features like separate per-process filesystem namespaces, requires
|
|
that your /etc directory be writable, tends to get easily confused
|
|
by --bind or --move mounts, won't update if you rename a directory
|
|
that contains a mount point, and so on. (In brief: avoid.)
|
|
|
|
About the only reason to use this is if you've removed /proc from
|
|
your kernel.
|
|
|
|
source util-linux/volume_id/Config.in
|
|
|
|
endmenu
|