Comment 48 for bug 537133

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Ryan Tandy (rtandy) wrote : Re: [Bug 537133] Re: mountall issues with NFS root filesystem

On Wed, Sep 11, 2013 at 2:57 PM, Steve Langasek
<email address hidden> wrote:
> and it's been suggested that nfsroot doesn't actually work on nfsv4

As the one who suggested that, I'll elaborate slightly: klibc's
nfsmount only supports nfs v2 and v3 (true in git as of this writing),
and initramfs-tools uses that; cf. Debian bug #409271. Dracut does
appear to support root on nfsv4 (see dracut-cmdline(7)) but is not
currently installable in Ubuntu.