Re: cant mount usb disk

On Tue, 26 Dec 2006 11:11:27 +0100 Sebastian <bastisoft@xxxxxxxx> wrote:
| Hello,
|
|> dmesg
|> [code]
|> .........
|> Attached scsi removable disk sdb at scsi2, channel 0, id 0, lun 0
|> SCSI device sdb: 512000 512-byte hdwr sectors (262 MB)
|> sdb: Write Protect is off
|> /dev/scsi/host2/bus0/target0/lun0: unknown partition table
|> WARNING: USB Mass Storage data integrity not assured
|> USB Mass Storage device found at 4
|> .........
|> [/code]
|
| You should find the partition table at:
| /dev/scsi/host2/bus0/target0/lun0/disc
|
|> [code]
|> # mount -t ext3 /dev/scsi/host1/bus0/target0/lun0/disc /mnt/usb
|> mount: wrong fs type, bad option, bad superblock on
|> /dev/scsi/host1/bus0/target0
|> /lun0/disc,
|> or too many mounted file systems
|> [/code]
|
| You have to mount the specific partition, i.e. something like:
| mount -t ext3 /dev/scsi/host1/bus0/target0/lun0/part1 /mnt/usb
|
|> the usb disk had been formated to ext3, and the kernel supports ext3
|
| Sure, but you have to find the partition at the first sector of the whole
| disc (.../lun0/disc) and inside this partition table the partitions are
| declared; you have to mount them and not the disc.

Apparently he doesn't even have a valid partition table on it.
Maybe he formatted the whole disk originally, anyway, and has
since let something else goof up the master sector.


| But, of course, you could get rid of the partition table and use the whole
| usb stick/disk as a single partition. But that is not compatible in the PC
| world at all, as every usb storage device must have a partition (even if
| there's only one partition).

Only because so many devices expect there to be one, and expect
it to be a DOS style partition table (and probably can't handle
logical partitions).
.

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