Ocfs2 can not mount the ocfs2 file system on RedHat AS v4 Update 1

Hi there,
I installed ocfs2-2.6.9-11.0.0.10.3.EL-1.0.4-1.i686.rpm onto RedHat linux AS v4 update 1. Installation looks OK. And configure ocfs2 (At this stage i only added 1 node in the cluster), load and start accordingly. Then paritition the disk and mkfs.ocfs2 the partition. Everything seems OK.
[root@node1 init.d]# ./o2cb status
Module "configfs": Loaded
Filesystem "configfs": Mounted
Module "ocfs2_nodemanager": Loaded
Module "ocfs2_dlm": Loaded
Module "ocfs2_dlmfs": Loaded
Filesystem "ocfs2_dlmfs": Mounted
Checking cluster ocfs2: Online
Checking heartbeat: Not active
But here you can check if the partition is there:
[root@node1 init.d]# fsck.ocfs2 /dev/hda12
Checking OCFS2 filesystem in /dev/hda12:
label: oracle
uuid: 27 74 a6 70 32 ad 4f 77 bf 55 8e 3a 87 78 ea cb
number of blocks: 612464
bytes per block: 4096
number of clusters: 76558
bytes per cluster: 32768
max slots: 2
/dev/hda12 is clean. It will be checked after 20 additional mounts.
However, mount -t ocfs2 /dev/hda12 just does not work.
[root@node1 oracle]# mount -t ocfs2 /dev/hda12 /oradata/m10g
mount.ocfs2: No such device while mounting /dev/hda12 on /oradata/m10g
[root@node1 oracle]# mount -L oracle
mount: no such partition found
Looks like mount just can not see the ocfs2 partition somehow.
I cannot find much info in metalink and anywhere else, does anyone here come across this issue before?
Regards,
Eric

I have been having a similar problem.
However, when I applied your fix I ended up with another problem:
(20765,0):ocfs2_initialize_osb:1179 max_slots for this device: 4
(20765,0):ocfs2_fill_local_node_info:851 I am node 0
(20765,0):dlm_request_join:756 ERROR: status = -107
(20765,0):dlm_try_to_join_domain:906 ERROR: status = -107
(20765,0):dlm_join_domain:1151 ERROR: status = -107
(20765,0):dlm_register_domain:1330 ERROR: status = -107
(20765,0):ocfs2_dlm_init:1771 ERROR: status = -12
(20765,0):ocfs2_mount_volume:912 ERROR: status = -12
ocfs2: Unmounting device (253,7) on (node 0)
Now the odd thing about this bit of log output (/var/log/messages)
is the fact that this is only a 2 node cluster and only one node has
currently mounted the file system in question. Now, I am running
the multipath drivers with my qla2xxx drivers under SLES9-R2.
However, at worst that should only double everything
(2 nodes x 2 paths through the SAN).
How can I get more low level information on what is consuming
the node slots in ocfs2? How can I force it to "disconnect" nodes
and recover/cleanup node slots?

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I had been wondering, recently, how can one copy the entire root hierarchy, or wanted parts of it, into RAM, mount it at startup, and use it as the root itself. At shutdown, the modified files and directories would be synchronized back to the non-volatile storage. This synchronization could also be performed manually, before shutting down.
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