[ale] quick USB storage device question
Christopher Bergeron
christopher at bergeron.com
Fri Jul 2 23:16:57 EDT 2004
My device is actually a Hard Disk mounted in a USB enclosure. I can
mount it just fine in my fileserver. This is the output from it:
scsi0 : SCSI emulation for USB Mass Storage devices
Vendor: FUJITSU Model: MHR2040AT Rev: 0 0
Type: Direct-Access ANSI SCSI revision: 02
SCSI device sda: 78140160 512-byte hdwr sectors (40008 MB)
sda: assuming drive cache: write through
However, when mounting in the machine that I want to use it in, I don't
get the same output (I get the output from my first email [seen
below]). I'm using kernel 2.6.1 and I'm trying to see what's different
between the 2 kernel builds.
If anyone can see an obvious kernel option that I'm missing, I'd
appreciate a lead...!
Thanks again,
CB
Thomas Holmquist wrote:
>Actually, in the case of USB thumbdrives, you would normally mount /dev/sda
>(No partition!). Mucking with Fstab on such a device is only asking for
>trouble (I have corruped a 256mb SD card by not knowing what I was doing and
>fstabing all over the place)
>
>On Friday 02 July 2004 18:26, Dow Hurst wrote:
>
>
>>/dev/sda is probably the right device if you don't have any other SCSI mass
>>storage devices. Try mounting the device directly:
>>
>>mount /dev/sda1 /mnt
>>
>>and see what you get. "lsusb" will show the usb bus info but the output
>>doesn't tie the usb numbers to the SCSI device. It should be the next
>>device that wasn't assigned.
>>Dow
>>
>>Christopher Bergeron wrote:
>>
>>
>>>Guys, I just picked up a USB storage device at Microcenter (that place
>>>rocks!) today. When I put it in my machine, I get this dmesg output:
>>>
>>>usb 1-4: USB disconnect, address 2
>>>hub 1-0:1.0: new USB device on port 4, assigned address 3
>>>scsi1 : SCSI emulation for USB Mass Storage devices
>>> Vendor: IC25N020 Model: ATCX04-0 Rev: 0 0
>>> Type: Direct-Access ANSI SCSI revision: 02
>>>WARNING: USB Mass Storage data integrity not assured
>>>USB Mass Storage device found at 3
>>>usb 1-4: USB disconnect, address 3
>>>hub 1-0:1.0: new USB device on port 4, assigned address 4
>>>scsi2 : SCSI emulation for USB Mass Storage devices
>>> Vendor: FUJITSU Model: MHR2040AT Rev: 0 0
>>> Type: Direct-Access ANSI SCSI revision: 02
>>>WARNING: USB Mass Storage data integrity not assured
>>>USB Mass Storage device found at 4
>>>
>>>How do I know what /dev/ filehandle it is? I tried running fdisk
>>>/dev/sdb1 and /dev/sda1 but no adeu.
>>>
>>>Am I missing something?
>>>
>>>Thanks in advacne!
>>>-CB
>>>
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>>>
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