I am having problem upgrading to FC6 as posted in this thread

The main error is "mount: could not find filesystem '/dev/root'"

I checked mkinitrd which has the following lines

emit "echo Creating root device."
# mkrootdev does "echo /dev/root /sysroot ext3 defaults,ro 0 0 >/etc/fstab"
emit "mkrootdev -t $rootfs -o $rootopts $rootdev"

There are suggestions to mount the device directly. So I tried the following.

echo 'mkrootdev -t ext3 -o defaults sda5' | nash --force

>cat /etc/fstab
/dev/root /sysroot ext3 defaults 0 0

The result showed mkrootdev ignores the last argument, which supposes to be the device and always output /dev/root as the device. I am suspecting this is the reason leading to the above error at the next line "mount /sysroot".

Is this a bug or feature of nash/mkrootdev?

Thanks!