unmountable partition
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Ubuntu |
Invalid
|
Undecided
|
Unassigned |
Bug Description
I have a partition that just refuses to mount in feisty, worked fine in edgy. It gives every impression of being mounted, but isn't.
root@SteveC:~# mount /dev/sdb1 /mnt
mount: /dev/sdb1 already mounted or /mnt busy
root@SteveC:~# file -s /dev/sdb1
/dev/sdb1: Linux rev 1.0 ext3 filesystem data (large files)
root@SteveC:~# cat /proc/mounts
rootfs / rootfs rw 0 0
none /sys sysfs rw,nosuid,
none /proc proc rw,nosuid,
udev /dev tmpfs rw 0 0
/dev/disk/
/dev/disk/
tmpfs /var/run tmpfs rw,nosuid,
tmpfs /var/lock tmpfs rw,nosuid,
tmpfs /lib/modules/
tmpfs /dev/shm tmpfs rw 0 0
devpts /dev/pts devpts rw 0 0
tmpfs /var/run tmpfs rw,nosuid,
tmpfs /var/lock tmpfs rw,nosuid,
nfsd /proc/fs/nfsd nfsd rw 0 0
binfmt_misc /proc/sys/
root@SteveC:~# dmesg | grep sdb
[ 188.193029] sd 2:0:0:0: [sdb] 72176566 512-byte hardware sectors (36954 MB)
[ 188.194059] sd 2:0:0:0: [sdb] Write Protect is off
[ 188.194063] sd 2:0:0:0: [sdb] Mode Sense: 9f 00 10 08
[ 188.195523] sd 2:0:0:0: [sdb] Write cache: enabled, read cache: enabled, supports DPO and FUA
[ 188.196190] sd 2:0:0:0: [sdb] 72176566 512-byte hardware sectors (36954 MB)
[ 188.197255] sd 2:0:0:0: [sdb] Write Protect is off
[ 188.197258] sd 2:0:0:0: [sdb] Mode Sense: 9f 00 10 08
[ 188.198721] sd 2:0:0:0: [sdb] Write cache: enabled, read cache: enabled, supports DPO and FUA
[ 188.198724] sdb: sdb1
[ 188.207848] sd 2:0:0:0: [sdb] Attached SCSI disk
bizarrely I can read data from it and it mounts from an image... but still unable to mount actual drive:
root@SteveC:/tmp# dd if=/dev/sdb1 of=myfile bs=1M count=1000
1000+0 records in
1000+0 records out
1048576000 bytes (1.0 GB) copied, 41.6886 seconds, 25.2 MB/s
root@SteveC:/tmp# mkdir myloop
root@SteveC:/tmp# mount -t ext3 -o loop myfile myloop
root@SteveC:/tmp# ls myloop/
data lost+found steve