How to check initrd's contents? (was: Re: Disk I/O as a bottleneck?)

[Omer Zak]

On Mon, 2011-05-09 at 15:30 +0300, Yedidyah Bar-David wrote:
> On Mon, May 09, 2011 at 03:18:08PM +0300, Omer Zak wrote:
> > My kernel is configured to have AHCI as a module:
> > CONFIG_SATA_AHCI=m
> > 
> > However I understand that it means that this module is needed also in
> > the initrd image.  How can I check which modules made it to the initrd
> > image last time it was rebuilt?
> 
> something like
> 
> mkdir /some/temp/dir
> cd /some/temp/dir
> gzip -dc < /boot/my-initrd | cpio -idm
> 
> That is, assuming it's a ramfs-based initrd and not an old-style
> filesystem image.

Thanks, my initrd images do include the
module /lib/modules/<kernel-version>/kernel/drivers/ata/ahci.ko

So all I need to do is to modify the appropriate BIOS setup setting -
will wait until next reboot opportunity!

--- Omer


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