Mounting MD raid1 array blocked by "Stale NFS file handle"

Mounting MD raid1 array blocked by "Stale NFS file handle"

[Skip Coombe]

Can't seem to get around error

mount: Stale NFS file handle

details:
Linux xenon 3.0.0-12-generic-pae #20-Ubuntu SMP Fri Oct 7 16:37:17 UTC
2011 i686 i686 i386 GNU/Linux

mdadm - v3.1.4 - 31st August 2010

array appears to be OK:
$ sudo mdadm -D /dev/md1
[sudo] password for skip:
/dev/md1:
Version : 1.2
Creation Time : Thu Dec 29 15:52:40 2011
Raid Level : raid1
Array Size : 488384400 (465.76 GiB 500.11 GB)
Used Dev Size : 488384400 (465.76 GiB 500.11 GB)
Raid Devices : 2
Total Devices : 2
Persistence : Superblock is persistent

Update Time : Fri Jun 15 21:44:19 2012
State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0

Name : xenon:1 (local to host xenon)
UUID : bd87c6e8:0253a174:e97be67c:5470db08
Events : 54

Number Major Minor RaidDevice State
0 8 33 0 active sync /dev/sdc1
1 8 49 1 active sync /dev/sdd1

Components and array appear in blkid:
$ blkid
...
/dev/sdc1: UUID="bd87c6e8-0253-a174-e97b-e67c5470db08"
UUID_SUB="7a254626-be94-dfcf-ea30-cbea9a17bdd8" LABEL="xenon:1"
TYPE="linux_raid_member"
/dev/sdd1: UUID="bd87c6e8-0253-a174-e97b-e67c5470db08"
UUID_SUB="d4d9c1e1-36cb-3f87-9030-ac37525f6046" LABEL="xenon:1"
TYPE="linux_raid_member"
...
LABEL="xenon:0" TYPE="linux_raid_member"
/dev/md1: UUID="dadb7d1c-daa2-4e56-8ef7-2816db397289" TYPE="ext2"
/dev/md1p1: UUID="6b30cdc5-25da-4575-b883-c1966e901b84" TYPE="ext2"

and in /proc/partitions
...
8 32 488386584 sdc
8 33 488385560 sdc1
8 48 488386584 sdd
8 49 488385560 sdd1
...
9 1 488384400 md1
259 0 488383376 md1p1

But mounting by device or UUID results in same error:

$ sudo mount -t ext2 -U dadb7d1c-daa2-4e56-8ef7-2816db397289 /mnt/back
mount: Stale NFS file handle

$ sudo mount -t ext2 /dev/md1 /mnt/back
mount: Stale NFS file handle

I do not have NFS intalled, only ssh and smb.

Any help will be appreciated. Please point out any info I have missed.

Thanks,

Skip

--
Skip Coombe
skip.coombe@gmail.com

Re: Mounting MD raid1 array blocked by "Stale NFS file handle"

[Stan Hoeppner]

Sorry bout the off-list only reply.  vger lists don't conform to standards.

On 6/20/2012 7:12 AM, Skip Coombe wrote:

> $ sudo mount -t ext2 -U dadb7d1c-daa2-4e56-8ef7-2816db397289 /mnt/back
> mount: Stale NFS file handle
> 
> $ sudo mount -t ext2 /dev/md1 /mnt/back
> mount: Stale NFS file handle
> 
> I do not have NFS intalled, only ssh and smb.
> 
> Any help will be appreciated. Please point out any info I have missed.

What you have missed is that the mount command doesn't mount devices, it
mounts filesystems, which reside on devices.  That means mount has
nothing to do with, and no knowledge of, the md driver or devices.  The
error is not indicative of the problem as you don't have NFS installed.
 The error msg is a bug.  File a report against mount and/or ext2 with
your distribution--looks like ubuntu.

Something is wrong with the filesystem nonetheless.  So the first thing
to do is run an fsck.  If that doesn't fix it, ask for help in the
various ubuntu fora.

-- 
Stan