mount harddisk problem
Dear All
While I try to mount my harddisk(sdb) to my system it come out the following error, sdb before still can mount on FC6, after I install FC7, it come the follow error out, How can I fix that? [root@test ~]# mount -t ext3 /dev/sdb2 /backup mount: wrong fs type, bad option, bad superblock on /dev/sdb2, missing codepage or other error In some cases useful info is found in syslog - try dmesg | tail or so [root@test ~]# dmesg | tail r8169: eth0: link up ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready r8169: eth0: link down r8169: eth0: link up eth0: no IPv6 routers present IPv6 over IPv4 tunneling driver sit0: Disabled Privacy Extensions r8169: eth0: link up eth0: no IPv6 routers present VFS: Can't find ext3 filesystem on dev sdb2. [root@test ~]# e2fsck -b 8193 /dev/sdb2 e2fsck 1.39 (29-May-2006) e2fsck: Bad magic number in super-block while trying to open /dev/sdb2 The superblock could not be read or does not describe a correct ext2 filesystem. If the device is valid and it really contains an ext2 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193 <device> I have many information inside it, I must mount it up and take the data back, Please HELP~~ thanks |
Are you sure it's an ext3 filesystem? Try mounting without the '-t':
Code:
mount /dev/sdb2 /backup |
Look at the output of "sudo file -s /dev/sdb2". If it is a different filesystem, it will tell you which.
Also try "sudo /sbin/dumpe2fs /dev/sdb2". It may tell you the location of other superblocks. Code:
example: Is this a new drive? Did you remember to create a filesystem? |
If it is a different filesystem you could run fsck -N /dev/sdb2 to see what fstype comes up. Then you'll know if it isn't ext2 or ext3 and can mount it properly.
Bill |
[root@test ~]# sudo file -s /dev/sdb2
/dev/sdb2: LVM2 (Linux Logical Volume Manager) , UUID: izGB1I9ex6g15BUHFmKhMp6F5mNxl6A [root@test ~]# sudo /sbin/dumpe2fs /dev/sdb2 dumpe2fs 1.39 (29-May-2006) /sbin/dumpe2fs: Bad magic number in super-block while trying to open /dev/sdb2 Couldn't find valid filesystem superblock. [root@test ~]# fsck -N /dev/sdb2 fsck 1.39 (29-May-2006) [/sbin/fsck.ext2 (1) -- /dev/sdb2] fsck.ext2 /dev/sdb2 is this mean it is ext2 system? but I mount it on ext2 it came out the same error and this is not a new drive, it is FC4 before I change the server, I have install FC7 now, and I want to take the data back from FC4. thanks for help |
How about you try the following.
Code:
mdadm -Q -v /dev/sdb Also check to see if /dev/md(x) exists (where x is a number). |
Quote:
http://forum.fedoraforum.org/forum/s...ght=VolGroup00 |
I found that it only can vgscan for sda but can't use on sdb how can I check for sdb ?
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Post the output of the command
fdisk -l /dev/sdb (that is a small L and you must be root) lvm.conf might be configured to ignore sdb. |
Is this a new drive that you are adding to the system? You could run the LVM manager to add it . This would allow you more space for /home for example.
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Dear All
Thanks for help I have solve this problem after I change the old Harddisk name to VolGroup01 then it can mount successfully thanks for all help. Ken |
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