On 02/08/10 22:37, Rick Macklem wrote:
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 get
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
/backup
(assuming /backup is the ZFS volume)
and then a mount like:
mount -t nfs -o nfsv4 server:/ /mnt
will mount /backup on /mnt
rick
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.
Well, I guess I havn't uderstood everything of NFSv4. The 'concept' of
the 'root' is new to me, maybe there are some deeper explanation of the
purpose? Are there supposed to be more than one 'root' enries or only one?
At this very moment mounting seems to work, but I always get a
'permission denied' error on every ZFS exported filesystem. Doing the
same with UFS2 filesystems, everything works as expected.
Is there a way to inspect the exports and mounts for the used
NFS-protocol? When issuing 'mount', the 'backup' mount is repoted to be
'newnfs', I assume this reflects NFSv4 being used, now I need to figure
out what's going wrong with the ZFS export. NFS export of the ZFS
filesystem is enabled, but as far as I know, this feature is not used in
FreeBSD since ZFS in FreeBSD lacks of the capabilities of autonomously
exporting its via NFS - well, I'm not an expert in this matter.
Thanks a lot,
Oliver
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