Hi Frank,

On 24/05/12 14:08 UTC, Frank Murphy wrote:
> # dracut initramfs-3.5.0-0.rc0.git3.1.fc18.x86_64 
> 3.5.0-0.rc0.git3.1.fc18.x86_64
> F: installkernel failed in module multipat
>
> # rpm -qa | grep multipath
> device-mapper-multipath-libs-0.4.9-22.fc18.x86_64
> device-mapper-multipath-0.4.9-22.fc18.x86_64

I had the same problem, but just on my 32bit Rawhide. Indeed, those two packages (device-mapper-multipath and device-mapper-multipath-libs) were installed on the x86_64 Rawhide.
So, the solution/work-around is simple:
# rpm -e device-mapper-multipath-libs-0.4.9-22.fc18.x86_64 device-mapper-multipath-0.4.9-22.fc18.x86_64
# dracut

That time, the initramfs should be created. Just check that it has been created. For instance:
# ls -l /boot/initramfs-3.5.0-0.rc0.git3.1.fc18.x86_64.img

Then, of course, you have to update the Grub2 configuration, by adding the following lines to /etc/grub2.cfg:
<tab>echo    'Loading initial ramdisk ...'
<tab>initrd  /initramfs-3.5.0-0.rc0.git3.1.fc18.x86_64.img

Note that, if you do not have a dedicated /boot partition, you should add the /boot prefix in the above line.

That's basically it.

Regards

Denis