Initrd /dev scripts?
Christopher K. Johnson
ckjohnson at gwi.net
Thu Jun 1 18:10:02 UTC 2006
Clint Olson wrote:
> Bob Chiodini wrote:
>> On Thu, 2006-06-01 at 10:33 -0700, Clint Olson wrote:
>>
>>> Hi!
>>> Hey, I'm trying to get FC5 to work with coLinux
>>> (http://www.colinux.org). I've got it so that it boots just fine --
>>> however, apparently FC5 creates its /dev device nodes at boot time,
>>> via a script run from initrd. Since coLinux doesn't execute this
>>> initrd, most of the devices normally available in /dev simply aren't
>>> there when I boot via coLinux. I'm trying to figure out how to
>>> extract the initrd so I can find the script and migrate it over to
>>> something that gets executed when coLinux boots. Any pointers?
>>>
>>> Clint Olson
>>>
>>>
>>>
>>
>> Clint,
>>
>> The initrd image is a compressed cpio archive. You can uncompress it
>> with gunzip and cpio its contents.
>>
>> Bob..
> Ahh, thanks. Everything I was googling was saying that it was a
> gzipped ext2 filesystem, but trying to mount it as such wasn't
> working. Cpio did the trick.
>
> Clint Olson
>
Your friend in such situations is often the file command:
[chris at chris ~] file /boot/initrd-2.6.16-1.2122_FC5.img
/boot/initrd-2.6.16-1.2122_FC5.img: gzip compressed data, from Unix,
last modified: Wed May 31 22:38:04 2006, max compression
[chris at chris ~]$ gunzip </boot/initrd-2.6.16-1.2122_FC5.img
>initrd-2.6.16-1.2122_FC5.uncompressed.img
[chris at chris ~]$ file initrd-2.6.16-1.2122_FC5.uncompressed.img
initrd-2.6.16-1.2122_FC5.uncompressed.img: ASCII cpio archive (SVR4 with
no CRC)
Chris
--
"Spend less! Do more! Go Open Source..." -- Dirigo.net
Chris Johnson, RHCE #804005699817957
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