Technical details of creating the USB key boot images.  Unless
you want to rebuild (remaster) the iso boot image, you will not
need this.

The directory "remaster" contains the scripts that allow picking
apart a Kubuntu Hardy ISO and then updating and recombining the
parts into a USB boot image.  The information below is somewhat
low level and should not be needed unless you want to do your
own remastering either starting from the Kubuntu release or from
the Bacula remastered release.

Note, the sqfs.tar.gz is the whole squashfs unsquashed.  

The kernel image (vmlinuz) is a copy of the most recent kernel i.e.

  sqfs/boot/vmlinuz-2.6.24-23-generic

and initrd.gz is a copy of the most recent initrd.img i.e

  sqfs/boot/initrd.img-2.6.24-23-generic

they are renamed and put in the kubuntu8 partition in:

  casper/vmlinuz
and
  casper/initrd.gz

respectively.

The above updates are automatically done when running
the write_sqfs_to_disk_image script.  Then the final
step is to tar up kubuntu8.

Note, initrd.gz is made after fixing the bug in
/usr/share/initramfs-tools/scripts/casper 
see note 2. in bugs with Kubuntu boot process below.

When updating the USB root partition (changing something), I 
strongly recommend that you work with the disk image then
repack it (pack_disk_image) and then run load_disk_image.


Packages needed:
apt-get install syslinux mbr


Kubuntu boot tricks:
1. Booting with persistence added to the kernel options will permit
   mounting of a USB casper-rw and home-rw partitions on the USB key.
   casper-rw is used to store changed OS files, and home-rw is the
   home directory.

Bugs with Kubuntu boot process:
1. The initrd.gz image must be opened, fixed and the repacked.
2. The fix involves removing the ,mode=755 from the mount line for
   the persistent OS partition (casper-rw) or /cow
   in /usr/share/initramfs-tools/scripts/casper 
3. I have removed /etc/rc0.d/S89casper and /etc/rc6.d/S89casper
   because they are related to a CDROM boot and create false 
   errors when booting from a USB key.