Mounting DVDs via NFS problem

Mounting DVDs via NFS problem

[Piers Kittel]

Hello all,

Am trying to mount a DVD drive via NFS and am having problems.  For
note, 192.168.1.2 (hostname - destiny) is the client and 192.168.1.15
(hostname - mythtv) is the server.

I have this in my /etc/exports:

/media/cdrom0 192.168.1.2(ro,sync)

and 192.168.1.2 is in the /etc/hosts.allow.

If the DVD is not mounted, it works perfectly fine:

destiny:/mnt# mount mythtv:/media/cdrom0 /mnt/mythtv
destiny:/mnt# df
Filesystem           1K-blocks      Used Available Use% Mounted on
<snip>
mythtv:/media/cdrom0   1829192   1547128    184472  90% /mnt/mythtv
destiny:/mnt#

If I unmount the above, and then mount the DVD on mythtv:

mythtv:/home/piers# mount /cdrom
mythtv:/home/piers#

and try again on destiny, I get:

destiny:/# mount mythtv:/media/cdrom0 /mnt/mythtv
mount: mythtv:/media/cdrom0 failed, reason given by server: Permission
denied
destiny:/#

and in the logs, I get:

Jan 21 21:57:08 localhost kernel: UDF-fs INFO UDF 0.9.8.1 (2004/29/09)
Mounting volume 'FIREFLY_D3', timestamp 2003/09/08 20:08 (1000)
Jan 21 21:57:39 localhost rpc.mountd: authenticated mount request from
destiny.10sca.intranet:923 for /media/cdrom0 (/media/cdrom0)
Jan 21 21:57:39 localhost rpc.mountd: getfh failed: Operation not permitted

I've googled for a long time with the last message but I can't find any
help anywhere.

I've tried this on my 2 Macs but had the exact same problem:

Jan 21 20:34:55 localhost rpc.mountd: authenticated mount request from
ukyo.10sca.intranet:982 for /media/cdrom0 (/media/cdrom0)
Jan 21 20:34:55 localhost rpc.mountd: getfh failed: Operation not permitted
Jan 21 21:29:59 localhost rpc.mountd: authenticated mount request from
akane.10sca.intranet:972 for /media/cdrom0 (/media/cdrom0)
Jan 21 21:29:59 localhost rpc.mountd: getfh failed: Operation not permitted

I'm hoping you guys can tell me what I'm doing wrong here?

Thanks very much in advance!

Cheers - Piers


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Mounting DVDs via NFS problem

[Piers Kittel]

Hello all,

Am trying to mount a DVD drive via NFS and am having problems.  For
note, 192.168.1.2 (hostname - destiny) is the client and 192.168.1.15
(hostname - mythtv) is the server.

I have this in my /etc/exports:

/media/cdrom0 192.168.1.2(ro,sync)

and 192.168.1.2 is in the /etc/hosts.allow.

If the DVD is not mounted, it works perfectly fine:

destiny:/mnt# mount mythtv:/media/cdrom0 /mnt/mythtv
destiny:/mnt# df
Filesystem           1K-blocks      Used Available Use% Mounted on
<snip>
mythtv:/media/cdrom0   1829192   1547128    184472  90% /mnt/mythtv
destiny:/mnt#

If I unmount the above, and then mount the DVD on mythtv:

mythtv:/home/piers# mount /cdrom
mythtv:/home/piers#

and try again on destiny, I get:

destiny:/# mount mythtv:/media/cdrom0 /mnt/mythtv
mount: mythtv:/media/cdrom0 failed, reason given by server: Permission
denied
destiny:/#

and in the logs, I get:

Jan 21 21:57:08 localhost kernel: UDF-fs INFO UDF 0.9.8.1 (2004/29/09)
Mounting volume 'FIREFLY_D3', timestamp 2003/09/08 20:08 (1000)
Jan 21 21:57:39 localhost rpc.mountd: authenticated mount request from
destiny.10sca.intranet:923 for /media/cdrom0 (/media/cdrom0)
Jan 21 21:57:39 localhost rpc.mountd: getfh failed: Operation not permitted

I've googled for a long time with the last message but I can't find any
help anywhere.

I've tried this on my 2 Macs but had the exact same problem:

Jan 21 20:34:55 localhost rpc.mountd: authenticated mount request from
ukyo.10sca.intranet:982 for /media/cdrom0 (/media/cdrom0)
Jan 21 20:34:55 localhost rpc.mountd: getfh failed: Operation not permitted
Jan 21 21:29:59 localhost rpc.mountd: authenticated mount request from
akane.10sca.intranet:972 for /media/cdrom0 (/media/cdrom0)
Jan 21 21:29:59 localhost rpc.mountd: getfh failed: Operation not permitted

I'm hoping you guys can tell me what I'm doing wrong here?

Thanks very much in advance!

Cheers - Piers


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Re: Mounting DVDs via NFS problem

[Neil Brown]

On Sunday January 22, debian@biased.org wrote:
> Hello all,
> 
> Am trying to mount a DVD drive via NFS and am having problems.  For
> note, 192.168.1.2 (hostname - destiny) is the client and 192.168.1.15
> (hostname - mythtv) is the server.
> 
> I have this in my /etc/exports:
> 
> /media/cdrom0 192.168.1.2(ro,sync)
> 
> and 192.168.1.2 is in the /etc/hosts.allow.
> 
> If the DVD is not mounted, it works perfectly fine:
> 
> destiny:/mnt# mount mythtv:/media/cdrom0 /mnt/mythtv
> destiny:/mnt# df
> Filesystem           1K-blocks      Used Available Use% Mounted on
> <snip>
> mythtv:/media/cdrom0   1829192   1547128    184472  90% /mnt/mythtv
> destiny:/mnt#
> 
> If I unmount the above, and then mount the DVD on mythtv:
> 
> mythtv:/home/piers# mount /cdrom
> mythtv:/home/piers#
> 
> and try again on destiny, I get:
> 
> destiny:/# mount mythtv:/media/cdrom0 /mnt/mythtv
> mount: mythtv:/media/cdrom0 failed, reason given by server: Permission
> denied
> destiny:/#
> 
...
> 
> I'm hoping you guys can tell me what I'm doing wrong here?

You need to run 'exportfs -a' again after mounting the dvd.....
OR maybe you need to unexport before mounting, and re-export after
mounting.  I don't remember the exact details.

If you use 2.6, nfs-utils 1.0.6 or later, and have the 'nfsd'
filesytem mounted on /proc/fs/nfsd:
  mount -t nfsd nfsd /proc/fs/nfsd

then this would work more smoothly, not requiring any re-export.

NeilBrown


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