NFSv4: mount -t nsf4 not the same as mount_newnfs?
rmacklem at uoguelph.ca
Mon Feb 8 22:26:15 UTC 2010
On Mon, 8 Feb 2010, O. Hartmann wrote:
> So I guess the above one is the more 'transparent' one with respect to the
> future, when NFSv4 gets mature and its way as matured into the kernel?
Yea, I'd only use "mount -t newnfs" if for some reason you want to
test/use the experimental client for nfsv2,3 instead of the regular one.
> I tried the above and it works. But it seems, that only UFS2 filesystems can
> be mounted by the client. When trying mounting a filesystem residing on ZFS,
> it fails. Mounting works, but when try to access or doing a simple 'ls', I
> ls: /backup: Permission denied
> On server side, /etc/exports looks like
> V4: / -sec=sys:krb5 #IPv4#
> /backup #IPv4#
> Is there still an issue with ZFS?
For ZFS, everything from the "root" specified by the "V4:" line
must be exported at this time. So, if "/" isn't exported, the
above won't work for ZFS. You can either export "/" or move the
NFSv4 root down to backup. For example, you could try:
V4: /backup -sec=sys:krb5
(assuming /backup is the ZFS volume)
and then a mount like:
mount -t nfs -o nfsv4 server:/ /mnt
will mount /backup on /mnt
ps: ZFS also has its own export stuff, but it is my understanding that
putting a line in /etc/exports is sufficient. I've never used ZFS,
so others will know more than I.
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