linuxrc: how to edit?

[bongski55]

# copy to r/w filesystem
cp initrd2x.gz ~

# unpack
gunzip initrd2x.gz

# mount
mount initrd2x.gz /mnt/test -o loop

# in konsole (!!! this is important since kwrite breaks it !!!)
mcedit /mnt/test/linuxrc

# save and quit

# unmount
umount /mnt/test

# repack
cd ~
gzip -9 initrd9x
(say "yes" to overwrite)

# use the newly created initrd9x.gz in lilo/grub
# (you don't need to do a hd-install of Knoppix for that)

Thanks but I know those steps

What I wanted was a "howto" on the linuxrc file itself. Perhaps as an example the one used in knoppix?