[Linux-cluster] /sbin/mount.gfs thinks fs is gfs2?

[Chris Adams]

I am upgrading a system with a GFS 6.0 filesystem from RHEL 3 to CentOS 5, 
and subsequently GFS 6.0 to 6.1.  I've followed the instructions here:
http://www.redhat.com/docs/manuals/csgfs/browse/rh-gfs-en/ap-license.html
and subsequently ran gfs_tool sb device proto lock_dlm on my gfs lv

The cluster is up and quorate, and clvmd sees the gfs lv, but when I try 
to mount it, I get:

#  mount -t gfs -o upgrade /dev/mapper/pool_gfs-pool_gfs /VAULT10/
/sbin/mount.gfs: there appears to be a GFS2, not GFS, filesystem on 
/dev/mapper/pool_gfs-pool_gfs

I'm not sure why this is failing.  For grins, I tried mounting it as a 
gfs2 filesystem and this is what I get:

#  mount -t gfs2 -o upgrade /dev/mapper/pool_gfs-pool_gfs /VAULT10/
/sbin/mount.gfs2: there appears to be a GFS, not GFS2, filesystem on 
/dev/mapper/pool_gfs-pool_gfs

I have successfully performed the upgrade if I use centos 4 as an 
intermediate step in the upgrade and perform the upgrade steps there and 
the conversion from lock_gulmd to dlm.  However, there are several 
clusters we need to do this with, so that's a painful option to avoid if 
possible.  

Here is the output from gfs_tool:
# gfs_tool sb /dev/mapper/pool_gfs-pool_gfs all
  mh_magic = 0x01161970
  mh_type = 1
  mh_generation = 0
  mh_format = 100
  mh_incarn = 0
  sb_fs_format = 1308
  sb_multihost_format = 1401
  sb_flags = 0
  sb_bsize = 4096
  sb_bsize_shift = 12
  sb_seg_size = 16
  no_formal_ino = 21
  no_addr = 21
  no_formal_ino = 22
  no_addr = 22
  no_formal_ino = 25
  no_addr = 25
  sb_lockproto = lock_dlm
  sb_locktable = cma:pool_gfs
  no_formal_ino = 23
  no_addr = 23
  no_formal_ino = 24
  no_addr = 24
  sb_reserved =
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00


thanks,
-chris