[Linux-cluster] GNBD and gfs - wrong FS type

[Hal]

hallo 
I have trouble mounting GNBD inported gfs on both nodes of my test clusuer. If
the lock is set to "lock_nolock" it mounts fine but this is not what i want.
When I use lock_dlm I get: 
mount: wrong fs type, bad option, bad superblock on /dev/gnbd/global_disk,
       missing codepage or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

What I am doing wrong?
Total output follows (Selinux is NOT in enforcing mode):

[root at node2 ~]# modprobe gnbd
[root at node2 ~]# modprobe gfs2
[root at node2 ~]# modprobe gfs
[root at node2 ~]# modprobe lock_dlm
[root at node2 ~]# gnbd_import -n -i 192.168.0.60
gnbd_import: created directory /dev/gnbd
gnbd_import: created gnbd device global_disk
gnbd_recvd: gnbd_recvd started
[root at node2 ~]# cd /etc/init.d/
[root at node2 init.d]# ./cman start
Starting cluster: 
   Loading modules... done
   Mounting configfs... done
   Starting ccsd... done
   Starting cman... done
   Starting daemons... done
   Starting fencing... done
                                                           [  OK  ]
[root at node2 ~]# gfs_mkfs -p lock_dlm -t testc:gfs1 -j6 /dev/gnbd/global_disk 
This will destroy any data on /dev/gnbd/global_disk.
  It appears to contain a gfs filesystem.

Are you sure you want to proceed? [y/n] y

Device:                    /dev/gnbd/global_disk
Blocksize:                 4096
Filesystem Size:           851880
Journals:                  6
Resource Groups:           14
Locking Protocol:          lock_dlm
Lock Table:                testc:gfs1

Syncing...
All Done
[root at node2 ~]# mount -t gfs /dev/gnbd/global_disk /mnt
mount: wrong fs type, bad option, bad superblock on /dev/gnbd/global_disk,
       missing codepage or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

[root at node2 ~]# dmesg |tail
GFS: fsid=testc:gfs1.0: Scanning for log elements...
GFS: fsid=testc:gfs1.0: Found 0 unlinked inodes
GFS: fsid=testc:gfs1.0: Found quota changes for 0 IDs
GFS: fsid=testc:gfs1.0: Done
SELinux: initialized (dev gnbd0, type gfs), uses xattr
audit(1184744195.259:4): avc:  denied  { getattr } for  pid=1848 comm="hald"
name="global_disk" dev=tmpfs ino=19253 scontext=system_u:system_r:hald_t:s0
tcontext=root:object_r:device_t:s0 tclass=blk_file
Trying to join cluster "lock_dlm", "testc:gfs1"
Joined cluster. Now mounting FS...
GFS: fsid=testc:gfs1.4294967295: can't mount journal #4294967295
GFS: fsid=testc:gfs1.4294967295: there are only 6 journals (0 - 5)
[root at node2 ~]# 


 
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