Nicholas Byrne wrote:
what distribution are you using? It might be a cpio archive or in cramfs
filesystem - start here http://wiki.openvz.org/Modifying_initrd_image
unfortunately that won't help with a PXEboot initrd.img,
which is very different under the hood. this may help:
http://www.redhat.com/archives/kickstart-list/2007-May/msg00081.html
it covers modifying an existing driver. adding a new driver
won't be much different, except you'll also need proper information
for the module-info and pcitable files for your new driver. it
looks like you already found this link from your message:
https://listman.redhat.com/archives/kickstart-list/2003-March/msg00183.html
which should help with modifying the pcitable.
But once you've unzipped it, type "file init" to see what it is
nicholas is right, you should see if the initrd.img file you
are starting with is a compressed filesystem image. if it's
a cpio archive, you can start by unarchiving it to a directory
and hacking away. if it's cramfs, you'll need to mount it,
copy the contents to a writable directory (cramfs is read-only),
modify, and use mkcramfs against the writable directory to
create a new image. something like:
mkdir /tmp/mnt
mount -o loop cramfs.img /mnt
rsync -avW /mnt/ /tmp/mnt
<changes to /tmp/mnt data here>
mkcramfs /tmp/mnt /tmp/cramfs-new.img
hope this helps,
chris
