nfsroot boot problems

Michael Tautschnig michael.tautschnig at
Tue Feb 28 10:33:13 CET 2006

> Hi,
> > 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)
> It couldn't mount your client to FAI -server, i think that you haven't
> chosen the NFS root option in kernel configuration. Check it as Y
> (build into kernel).
> If you build config kernel from scratch without FAI template
> configuration, you might not see that option. Try to use the FAI
> template config. There're config file for kernel 2.6.8 , 2.6.14 on FAI
> download repository.

IMHO you need to enable one of the IP autoconfiguration options as ROOT_NFS
depends on IP_PNP in the kernel configuration.


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