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Re: [Linux-cluster] STABLE3: Cannot mount gfs, "no such device"


I assumed that the dlm_lock would be built and installed with Cluster 3.0.0rc2, so I built the cluster without the gfs/cluster modules.

When I modprobe gfs, dmesg reports that Lock_DLM has been installed (along with GFS and Lock_NoLock), however lsmod did not show a lock_dlm. I could not find lock_dlm.ko on the systems. lsmod did show dlm and gfs was loaded.

Please let me know where I can get the necessary modules.



On May 28, 2009, at 3:43 PM, Bob Peterson wrote:

----- "David Merhar" <merhar arlut utexas edu> wrote:
| Everything seems perfect until we try to mount.  lvdisplay shows the
| volume.  mkfs.gfs2 runs fine.  The device is visible under both /dev
| and /dev/mapper
| Cluster 3.0.0rc2
| Corosync .97
| OpenAIS .96
| LVMS 2.02.47
| Kernel
| Please advise.
| Thanks.
| djm

Hi David,

Usually this means, for whatever reason, that you don't have
one (or more) of these kernel modules loaded:

gfs2.ko, lock_dlm.ko, dlm.ko

So check lsmod to see if they're there.  If not, you'll have
to get them, and getting them depends on your platform, which
you didn't mention.


Bob Peterson
Red Hat GFS

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