Updated the core components. Added option to run MLL in QEMU console mode. This is suitable for remote SSH work.

src/.config

@@ -11,7 +11,7 @@
 #
 #   http://kernel.org
 #
-KERNEL_SOURCE_URL=http://kernel.org/pub/linux/kernel/v4.x/linux-4.16.5.tar.xz
+KERNEL_SOURCE_URL=http://kernel.org/pub/linux/kernel/v4.x/linux-4.17.2.tar.xz
 
 # You can find the latest GNU C library source bundles here:
 #
@@ -23,7 +23,7 @@ GLIBC_SOURCE_URL=http://ftp.gnu.org/gnu/glibc/glibc-2.27.tar.bz2
 #
 #   http://busybox.net
 #
-BUSYBOX_SOURCE_URL=http://busybox.net/downloads/busybox-1.28.3.tar.bz2
+BUSYBOX_SOURCE_URL=http://busybox.net/downloads/busybox-1.28.4.tar.bz2
 
 # You can find the latest Syslinux source bundles here:
 #
@@ -37,7 +37,7 @@ SYSLINUX_SOURCE_URL=http://kernel.org/pub/linux/utils/boot/syslinux/syslinux-6.0
 #
 #   http://github.com/ivandavidov/systemd-boot
 #
-SYSTEMD-BOOT_SOURCE_URL=https://github.com/ivandavidov/systemd-boot/releases/download/systemd-boot_10-Dec-2017/systemd-boot_10-Dec-2017.tar.xz
+SYSTEMD-BOOT_SOURCE_URL=https://github.com/ivandavidov/systemd-boot/releases/download/systemd-boot_26-May-2018/systemd-boot_26-May-2018.tar.xz
 
 ####################################################
 #                                                  #

src/02_build_kernel.sh

@@ -49,6 +49,9 @@ else
   # Turn on NFS export feature by default (4.16+).
   echo "# CONFIG_OVERLAY_FS_NFS_EXPORT is not set" >> .config
 
+  # Auto enable inode number mapping (4.17+).
+  echo "CONFIG_OVERLAY_FS_XINO_AUTO=y" >> .config
+
   # Step 1 - disable all active kernel compression options (should be only one).
   sed -i "s/.*\\(CONFIG_KERNEL_.*\\)=y/\\#\\ \\1 is not set/" .config
 

src/minimal_boot/bios/boot/syslinux/syslinux.cfg

@@ -1,6 +1,7 @@
+SERIAL 0
 PROMPT 1
 TIMEOUT 50
-DEFAULT mll
+DEFAULT vga
 
 SAY
 SAY   ##################################################################
@@ -11,14 +12,19 @@ SAY   #  Press <TAB> to view available boot entries or enter Syslinux  #
 SAY   #  commands directly.                                            #
 SAY   #                                                                #
 SAY   ##################################################################
-SAY 
+SAY
 
-LABEL mll
-        LINUX /boot/kernel.xz
-        APPEND vga=ask
-        INITRD /boot/rootfs.xz
+LABEL vga
+  LINUX  /boot/kernel.xz
+  APPEND vga=ask
+  INITRD /boot/rootfs.xz
 
-LABEL mll_nomodeset
-        LINUX /boot/kernel.xz
-        APPEND vga=ask nomodeset
-        INITRD /boot/rootfs.xz
+LABEL vga_nomodeset
+  LINUX  /boot/kernel.xz
+  APPEND vga=ask nomodeset
+  INITRD /boot/rootfs.xz
+
+LABEL console
+  LINUX  /boot/kernel.xz
+  APPEND console=tty0 console=ttyS0
+  INITRD /boot/rootfs.xz

src/qemu-bios-console.sh

@@ -0,0 +1,44 @@
+#!/bin/sh
+
+# Use this script without arguments to run the generated ISO image with QEMU.
+# If you pass '-hdd' or '-h' the virtual hard disk 'hdd.img' will be attached.
+# Note that this virtual hard disk has to be created in advance. You can use
+# the script 'generate_hdd.sh' to generate the hard disk image file. Once you
+# have hard disk image, you can use it as overlay device and persist all your
+# changes. See the '.config' file for more information on the overlay support.
+#
+# If you get kernel panic with message "No working init found", then try to
+# increase the RAM from 128M to 256M.
+#
+# 'Ctrl + A' then 'C' to toggle between guest system console and QEMU monitor.
+# 'Ctrl + A' then 'X' to terminate the QEMU instance.
+#
+# In nographic mode, qemu disables virtual console. To obtain a system console,
+# the virtual serial port can be used. In this mode, the virtual serial port is
+# redirected to the host's stdio by default. Pass "console=ttySn" (PC) or
+# "console=ttyAMAn" (on ARM) where n is 0, 1, ... on the kernel command line.
+
+cat << CEOF
+
+  'Ctrl + A' then 'C' to toggle between guest system console and QEMU monitor.
+  'Ctrl + A' then 'X' to terminate the QEMU instance.
+
+  Type 'console' in the boot menu to run MLL in QEMU console mode.
+
+CEOF
+
+if [ "`uname -m`" = "x86_64" ] ; then
+  ARCH="x86_64"
+else
+  ARCH="i386"
+fi
+
+cmd="qemu-system-$ARCH -m 128M -cdrom minimal_linux_live.iso -boot d -nographic"
+
+if [ "$1" = "-hdd" -o "$1" = "-h" ] ; then
+  echo "Starting QEMU with attached ISO image and hard disk."
+  echo 'console' | $cmd -hda hdd.img
+else
+  echo "Starting QEMU with attached ISO image."
+  echo 'console' | $cmd
+fi

src/qemu-bios.sh

@@ -20,8 +20,8 @@ cmd="qemu-system-$ARCH -m 128M -cdrom minimal_linux_live.iso -boot d -vga std"
 
 if [ "$1" = "-hdd" -o "$1" = "-h" ] ; then
   echo "Starting QEMU with attached ISO image and hard disk."
-  $cmd -hda hdd.img > /dev/null 2>&1 &
+  $cmd -hda hdd.img
 else
   echo "Starting QEMU with attached ISO image."
-  $cmd > /dev/null 2>&1 &
+  $cmd
 fi

src/qemu-uefi.sh

@@ -27,8 +27,8 @@ cmd="qemu-system-$ARCH -pflash $OVMF_LOCATION -m 128M -cdrom minimal_linux_live.
 
 if [ "$1" = "-hdd" -o "$1" = "-h" ] ; then
   echo "Starting QEMU with attached ISO image and hard disk."
-  $cmd -hda hdd.img > /dev/null 2>&1 &
+  $cmd -hda hdd.img
 else
   echo "Starting QEMU with attached ISO image."
-  $cmd > /dev/null 2>&1 &
+  $cmd
 fi