[CentOS] Re: add new module in initrd

Mon Aug 13 04:20:10 UTC 2007
beast <beast at ldap.or.id>

On 10/08/07 10:26 +0000, Tony Mountifield wrote:
>In article <20070810071942.GA3164 at localhost.localdomain>,
>beast <beast at ldap.or.id> wrote:
>> Hi,
>> 
>> I would like to do a network install using PIXES boot, however the ethernet
>> device was not supported by centos installation (RTL8110SC). How do i add
>> this module into the initrd?
>> I know i can use: mkinitrd --with=r8169 `uname -r`, but i did not know what
>> is the standard modules included in the installation initrd of Centos.
>
>The initrd file is just a gzipped ext2 filesystem image, so you need to
>uncompress it into a temporary file and then mount that file using loopback:
>
>zcat /boot/initrd-`uname -r`.img >/tmp/fs
>mkdir /mnt/initrd
>mount -r -t ext2 -o loop /tmp/fs /mnt/initrd
>
>Then you can look under /mnt/initrd to see the contents of the initial ramdisk.

Its not an image anymore :
fs: ASCII cpio archive (SVR4 with no CRC)

However it can be extarct using cpio:
gunzip < /boot/initrd-version.img |cpio -i --make-directories 

Thanks for the hint.

--beast