/tmp/nfs.rpc_pipefs_path can contain the path where
/var/lib/nfs/rpc_pipefs will be moved before switch_root.
This is useful if /var is a separate partition in the real root.
Work-in-progress to mount NFS root from udev, using the DHCP options and
allowing an override from the kernel command line. Supports NFSv4 w/locking
and NFSv2/v3 with nolock.
This is just an RFC patch, you'll note all the XXX markings where I've been
thinking about how to best do things. In addition, we really want to retry
DHCP and NFS mounting in a loop, in case the servers are down or overloaded
like when booting a full diskless cluster.
Harald Hoyer