Move usb to oldusb

[bacula/rescue] / rescue / linux / usb / README.technotes

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-
-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.