On Mon, 26 Feb 2007, Abhishek Gaurav wrote:
I have been trying to boot a VM over NFS with the default xen-kernel
that came
with FC6. However, I ran into the problems like:
VFS: Cannot open root device "nfs" or unknown-block(0,255)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(0,255)
You are missing drivers from the initrd. I am not sure if you can grab the
ramdisk (initrd) over the network, obviously you need some network drivers first.
After some search, it looks like that the CONFIG_IP_PNP and
CONFIG_ROOT_NFS
parameters need to be enabled in the kernel. Can anyone please let me know how
to go about it in the default fc6-xen system. It also looks like that I do not
have the source for the xen-enabled kernel.
install the kernel-xen-devel package. Then either change the config-*
files or, which is easier, you can run rpmbuild -bp which sets up the
build/linux-* directory and patch everything, and then you can run make
config and make bzImage yourself.
Paul