Quick initrd note

This is mainly a note for myself, but someone else might find it handy. Working with modern <abbr title="initial ramdisk">initrd</abbr>s requires monkeying with cpio, which I can never remember the correct command line parameters for off the top of my head. So, here's a quick workflow (borrowed from Chip Shabazian) for manipulating an initrd image.

mkdir initrd
cd initrd
gzip -dc path/to/unzipped/initrd.img | cpio -id
# Make the changes you need
find . | cpio -c -o | gzip -9 > /path/to/new/initrd.img

Chip Shabazian's presentation at LinuxWorld

Syndicated 2007-07-18 12:11:00 from esm