I've started getting problems with Squeeze and gnome auto-mounting any
external usb drives. I get the notification window which contains...
Unable to mount Thumb
Error mounting: mount exited with exit code 1: helper failed with:
mount: wrong fs type, bad option, bad superblock on /dev/sdb1,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
This is the last entry in dmesg
[279695.080121] usb 2-1: new high speed USB device using ehci_hcd and
address 19
[279695.213149] usb 2-1: New USB device found, idVendor=0781,
idProduct=5530
[279695.213157] usb 2-1: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[279695.213164] usb 2-1: Product: Cruzer
[279695.213169] usb 2-1: Manufacturer: SanDisk
[279695.213174] usb 2-1: SerialNumber: 22437207B7A13B68
[279695.213373] usb 2-1: configuration #1 chosen from 1 choice
[279695.214916] scsi25 : SCSI emulation for USB Mass Storage devices
[279695.218741] usb-storage: device found at 19
[279695.218746] usb-storage: waiting for device to settle before
scanning [279700.216411] usb-storage: device scan complete
[279700.216942] scsi 25:0:0:0: Direct-Access SanDisk Cruzer
8.02 PQ: 0 ANSI: 0 CCS
[279700.218649] sd 25:0:0:0: Attached scsi generic sg2 type 0
[279700.219749] sd 25:0:0:0: [sdb] 7856127 512-byte logical blocks:
(4.02 GB/3.74 GiB)
[279700.220258] sd 25:0:0:0: [sdb] Write Protect is off
[279700.220265] sd 25:0:0:0: [sdb] Mode Sense: 45 00 00 08
[279700.220271] sd 25:0:0:0: [sdb] Assuming drive cache: write through
[279700.222709] sd 25:0:0:0: [sdb] Assuming drive cache: write through
[279700.222718] sdb: sdb1
[279700.230252] sd 25:0:0:0: [sdb] Assuming drive cache: write through
[279700.230262] sd 25:0:0:0: [sdb] Attached SCSI removable disk
[279700.561998] UDF-fs: No VRS found
[279700.562002] UDF-fs: Rescanning with blocksize 2048
[279700.563369] UDF-fs: No VRS found
[279700.563372] UDF-fs: No partition found (1)
[279700.619266] ISOFS: Unable to identify CD-ROM format.
And how fdisk reports the drive.
Disk /dev/sdb: 4022 MB, 4022337024 bytes
124 heads, 62 sectors/track, 1021 cylinders
Units = cylinders of 7688 * 512 = 3936256 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sdb1 1 1021 3924723+ 83 Linux
I'm able to manually mount the drives just fine, and they are
auto mounted as expected from another workstation also running Squeeze.
The only thing different between the two is the problem machine it
partitioned with encrypted LVMs.
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