Ubuntu Wiki

Playing with Live CDs

• grab a current live CD and loop-mount it
• unpack the initrd

  •  mkdir initrd; zcat /path/to/loopmount/casper/initrd.gz | sudo cpio -id 

• fiddle with this until it looks how you want

•  sudo cp -a /path/to/loopmount /path/to/loopmount.new 

• repack the initrd

  • In the directory you created:  sudo sh -c 'find . | cpio --quiet --dereference -o -H newc | gzip >/path/to/loopmount.new/casper/initrd.gz' 

• rebuild the ISO

  •  mkisofs -r -V 'Ubuntu 8.10 i386' -o intrepid-desktop-i386-hacked.iso -cache-inodes -J -l -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table /path/to/loopmount.new )

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