Re: Mirror mounts not available on FreeBSD? (was: Re: NFSv4 shows all ZFS filesystems as being owned by root)

2010-09-01 Thread David Brodbeck
On Tue, Aug 31, 2010 at 12:20 PM, David Brodbeck  wrote:
> On Tue, Aug 31, 2010 at 11:52 AM, David Brodbeck  wrote:
>> When a ZFS filesystem mountpoint is owned by someone other than root,
>> this is not depicted properly on NFSv4 clients:
>
> After playing around a bit more, it appears the problem is that ZFS
> filesystems under an NFSv4 mountpoint are not auto-mounted by Linux
> clients of a FreeBSD server the way they are when they're clients of
> an OpenSolaris server; if I mount them manually, the ownership is
> correct.  I think OpenSolaris calls this functionality "mirror
> mounts."  Is there a way to get mirror mounts to work on FreeBSD, or
> is it necessary to mount every sub-filesystem manually?

The answer is I didn't RTFM carefully enough, and forgot to specify
'nfsd_flags="-e"' and 'mountd_flags="-e"' in my /etc/rc.conf.  It's
working now.

Sorry for the unnecessary thread, but hopefully it'll help someone
else searching for the same info in the future.
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Mirror mounts not available on FreeBSD? (was: Re: NFSv4 shows all ZFS filesystems as being owned by root)

2010-08-31 Thread David Brodbeck
On Tue, Aug 31, 2010 at 11:52 AM, David Brodbeck  wrote:
> When a ZFS filesystem mountpoint is owned by someone other than root,
> this is not depicted properly on NFSv4 clients:

After playing around a bit more, it appears the problem is that ZFS
filesystems under an NFSv4 mountpoint are not auto-mounted by Linux
clients of a FreeBSD server the way they are when they're clients of
an OpenSolaris server; if I mount them manually, the ownership is
correct.  I think OpenSolaris calls this functionality "mirror
mounts."  Is there a way to get mirror mounts to work on FreeBSD, or
is it necessary to mount every sub-filesystem manually?

The intended application here is a server hosting user home
directories, where each user has their own ZFS filesystem.  Having to
list every user in /etc/fstab on every client is not really workable.
With an OpenSolaris server, I can have the Linux clients mount
/tank/home, and all the filesystems under /tank/home come along for
the ride; I'm trying to duplicate this with a FreeBSD server.
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NFSv4 shows all ZFS filesystems as being owned by root

2010-08-31 Thread David Brodbeck
When a ZFS filesystem mountpoint is owned by someone other than root,
this is not depicted properly on NFSv4 clients:

On the server (FreeBSD 8.1-RELEASE):
temp-nfs# zfs create tank/test/testfs
temp-nfs# chown brodbd:brodbd /tank/test/testfs
temp-nfs# touch /tank/test/testfile
temp-nfs# chown brodbd:brodbd /tank/test/testfile
temp-nfs# ls -l /tank/test
total 2
-rw-r--r--  1 brodbd  brodbd  0 Aug 31 04:48 testfile
drwxr-xr-x  2 brodbd  brodbd  2 Aug 31 04:48 testfs

On the client (RedHat Linux 5.4):
r...@dryas:~# mount temp-nfs:/tank/test /test
r...@dryas:~# ls -l /test
total 2
-rw-r--r-- 1 brodbd brodbd 0 Aug 31 04:48 testfile
drwxr-xr-x 2 root   root   2 Aug 31 04:48 testfs

The same sequence works as expected when the server runs OpenSolaris.
Am I missing something?
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