bad superblock on ocfs 10g
Hi there,
I am trying to mount a device (/dev/sda1) with ocfs and I am facing a few issues that seem to be pointing to a bad/corrupted header/super block.
Code:
sbin]# mount -t ocfs /dev/sda1 /u02/oradata/orcl/
mount: wrong fs type, bad option, bad superblock on /dev/sda1,
or too many mounted file systems
Code:
sbin]# /sbin/fsck.ocfs /dev/sda1
/sbin/fsck.ocfs 1.1.5-PROD1 Fri May 20 10:58:55 PDT 2005 (build 17eb3d6fd0f7853771a0440c086aab8f)
/dev/sda1: bad signature in super block
Is it possible, with ocfs to recover a backup super block, or edit the mount_point value? There is a ton of doc available on to perform such operation with ocfs2 but I cannot find anything for ocfs.
Look at the mount_point value below...
Any help will be greatly appreciated
Thanks
Code:
sbin]# /usr/sbin/debugocfs -h /dev/sda1
/usr/sbin/debugocfs 1.0.10-PROD1 Fri Mar 5 14:57:43 PST 2004 (build fcb0206676afe0fcac47a99c90de0e7b)
diskheader:
version = 1397703763.1301305579
signature = 5.0
mount_point = ÍÀ*Af·Éf÷áfFø~
serial_num = 6195687549856517907
device_size = 126652744747782058
start_off = 12971007933516973071
bitmap_off = 1427065535863360066
publ_off = 6369875919555197360
vote_off = 7409040850877634662
root_bitmap_off = 18370736372887500559
data_start_off = 13936055394088159938
root_bitmap_size = 10004331070473310442
root_off = 722516307425771606
root_size = 7018318840526387404
cluster_size = 144330151177781775
num_nodes = 14123131772758212710
num_clusters = 2314885746173695054
dir_node_size = 2105376
file_node_size = 0
internal_off = 0
node_cfg_off = 0
node_cfg_size = 0
new_cfg_off = 0
prot_bits = 00
uid = 1414400525
gid = 542262348
excl_mount = 1830843241
volumelabel:
curr_master = 1096897106
file_lock = OCFS_DLM_NO_LOCK
oin_node_map = 00000000000000000000000000000000
seq_num = 0
label =
label_len = 0
