Several information message improvements.

src/08_generate_rootfs/etc/02_overlay.sh

@@ -30,11 +30,11 @@
 mount -t tmpfs none /mnt
 
 # Create folders for all critical file systems.
-echo "Create folders for all critical file systems..."
 mkdir /mnt/dev
 mkdir /mnt/sys
 mkdir /mnt/proc
 mkdir /mnt/tmp
+echo "Created folders for all critical file systems."
 
 # Copy root folders in the new mountpoint.
 echo "Copying the root file system to /mnt..."
@@ -144,7 +144,6 @@ for DEVICE in /dev/* ; do
       rmdir $DEFAULT_OVERLAY_DIR 2>/dev/null
       rmdir $DEFAULT_UPPER_DIR 2>/dev/null
       rmdir $DEFAULT_WORK_DIR 2>/dev/null
-      
     else
       # All done, time to go.
       echo "  Overlay data from device '$DEVICE' has been merged."
@@ -159,16 +158,16 @@ for DEVICE in /dev/* ; do
 done
 
 # Move critical file systems to the new mountpoint.
-echo "Remounting /dev, /sys, /tmp and /proc in /mnt."
 mount --move /dev /mnt/dev
 mount --move /sys /mnt/sys
 mount --move /proc /mnt/proc
 mount --move /tmp /mnt/tmp
+echo "Mount locations /dev, /sys, /tmp and /proc have been moved to /mnt."
 
 # The new mountpoint becomes file system root. All original root folders are
 # deleted automatically as part of the command execution. The '/sbin/init' 
 # process is invoked and it becomes the new PID 1 parent process.
-echo "Moving from initramfs root area to overlayfs root area."
+echo "Switching from initramfs root area to overlayfs root area."
 exec switch_root /mnt /etc/03_init.sh
 
 echo "(/etc/02_overlay.sh) - there is a serious bug..."

src/generate_hdd.sh

@@ -2,14 +2,14 @@
 
 # Create sparse file of 20MB which can be used by QEMU.
 
-if [ "$1" = "" ] ; then
+if [ "$1" = "-e" -o "$1" = "--empty" ] ; then
   # Create new hard disk image file.
   rm -f hdd.img
   truncate -s 20M hdd.img
   echo "Created new hard disk image file 'hdd.img' with 20MB size."
-elif [ "$1" = "-f" -o "$1" = "-folder" ] ; then
+elif [ "$1" = "-f" -o "$1" = "--folder" ] ; then
   if [ ! "$(id -u)" = "0" ] ; then
-    echo "Using option '-f' (or '-folder') requires root permissions."
+    echo "Using option '-f' (or '--folder') requires root permissions."
     exit 1
   fi
   
@@ -44,9 +44,9 @@ elif [ "$1" = "-f" -o "$1" = "-folder" ] ; then
   
   chown $(logname) hdd.img
   echo "Applied original ownership to hard disk image file."
-elif [ "$1" = "-s" -o "$1" = "-sparse" ] ; then
+elif [ "$1" = "-s" -o "$1" = "--sparse" ] ; then
   if [ ! "$(id -u)" = "0" ] ; then
-    echo "Using option '-s' (or '-sparse') requires root permissions."
+    echo "Using option '-s' (or '--sparse') requires root permissions."
     exit 1
   fi
   
@@ -110,7 +110,24 @@ elif [ "$1" = "-s" -o "$1" = "-sparse" ] ; then
   
   chown $(logname) hdd.img
   echo "Applied original ownership to hard disk image file."
+elif [ "$1" = "-h" -o "$1" = "--help" ] ; then
+  cat << CEOF
+  Usage: $0 [OPTION]
+  This utility generates 20MB sparse file 'hdd.img' which can be used as QEMU
+  disk image where all filesystem changes from the live session are persisted.
+  
+  -e, --empty     Create empty sparse image file which is not formatted.
+  -f, --folder    Create sparse image file formatted with Ext2 filesystem which
+                  contains compatible overlay folder structure.
+  -h, --help      Prints this help information.
+  -s, --sparse    Create sparse image file formatted with FAT filesystem which
+                  contains sparse image file 'minimal.img' (1MB) formatted with
+                  Ext2 filesystem which contains the actual overlay structure.
+CEOF
+
+elif [ "$1" = "" ] ; then
+  echo "No option specified. Use '-h' or '--help' for more info."
 else
-  echo "Option '$1' is not recognized. Valid options are '-f' and '-s'."
+  echo "Option '$1' is not recognized. Use '-h' or '--help' for more info."
 fi
 

src/qemu32.sh

@@ -9,9 +9,9 @@
 
 if [ "$1" = "-hdd" -o "$1" = "-h" ] ; then
   echo "Starting QEMU with attached ISO image and hard disk."
-  qemu-system-i386 -m 64M -hda hdd.img -cdrom minimal_linux_live.iso -boot d
+  qemu-system-i386 -m 64M -cdrom minimal_linux_live.iso -hda hdd.img -boot d
 else
-  echo "Starting QEMU with attached ISO image."
+  echo "Starting QEMU with attached ISO image and no hard disk."
   qemu-system-i386 -m 64M -cdrom minimal_linux_live.iso -boot d
 fi
 

src/qemu64.sh

@@ -9,7 +9,7 @@
 
 if [ "$1" = "-hdd" -o "$1" = "-h" ] ; then
   echo "Starting QEMU with attached ISO image and hard disk."
-  qemu-system-x86_64 -m 64M -hda hdd.img -cdrom minimal_linux_live.iso -boot d
+  qemu-system-x86_64 -m 64M -cdrom minimal_linux_live.iso -hda hdd.img -boot d
 else
   echo "Starting QEMU with attached ISO image."
   qemu-system-x86_64 -m 64M -cdrom minimal_linux_live.iso -boot d