Hi all,
On one machine, I have a raid1 array consisting of /dev/hda and /dev/hdc.
A few days ago, just for fun, I tried to mount a partition of /dev/hdc
to /mnt
# mount /dev/hdc6 /mnt/hdc6
the response I receive was:
mount: wrong fs type, bad option, bad superblock on /dev/hdc6,
or too many mounted file systems
hmm ... so, I tried
# fdisk -l /dev/hdc
Disk /dev/hdc: 16 heads, 63 sectors, 79656 cylinders
Units = cylinders of 1008 * 512 bytes
Device Boot Start End Blocks Id System
/dev/hdc1 * 1 64 32098+ 83 Linux
Partition 1 does not end on cylinder boundary:
phys=(3, 254, 63) should be (3, 15, 63)
/dev/hdc2 64 79401 39985785 5 Extended
Partition 2 does not end on cylinder boundary:
phys=(1023, 254, 63) should be (1023, 15, 63)
/dev/hdc5 64 1052 497983+ 82 Linux swap
/dev/hdc6 1052 39812 19535008+ 83 Linux
/dev/hdc7 39812 59192 9767488+ 83 Linux
/dev/hdc8 59192 79401 10185178+ 83 Linux
Interesting, I thought. Then, I tried:
# mdadm -D /dev/md0
/dev/md0:
Version : 00.90.00
Creation Time : Thu Dec 9 12:44:16 2004
Raid Level : raid1
Array Size : 40021568 (38.16 GiB 40.98 GB)
Device Size : 40021568 (38.16 GiB 40.98 GB)
Raid Disks : 2
Total Disks : 2
Preferred Minor : 0
Persistance : Superblock is persistant
Update Time : Thu Dec 9 12:44:16 2004
State : dirty, no-errors
Active Drives : 2
Working Drives : 2
Failed Drives : 0
Spare Drives : 0
Number Major Minor RaidDisk State
0 3 0 0 active sync /dev/hda
1 22 0 1 active sync /dev/hdc
UUID : 1dc497ab:ef9a2366:a9c762f3:301b6de7
Everything except the partition table looks good. I thought to check
/proc/mdstat as well:
# cat /proc/mdstat
Personalities : [raid1]
read_ahead 1024 sectors
md0 : active raid1 ide/host0/bus1/target0/lun0/disc[1]
ide/host0/bus0/target0/lun0/disc[0]
40021568 blocks [2/2] [UU]
unused devices: <none>
So, the raid information seems correct but the partition table information
seems incorrect and I cannot mount and partitions on /dev/hdc (except
for /dev/hdc1). How can I fix the problem of mounting and how can
I know if the array truly is correct?
Regards,
Harland
http://www.zerocrossings.com/
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