error mounting USB disk: Invalid argument

[Roland Smith]

On Sat, May 31, 2008 at 10:27:50AM +0200, Colin Brace wrote:
> 
> On Sat, 31 May 2008 09:29:55 +0200, Roland Smith <rsmith at xs4all.nl> wrote:
> 
> > Can you show us what is shown in the dmesg output when you plug this
> > drive in, which devices are then created and the exact command that you
> > used to mount it?
> 
> dmesg:
> 
> [...]
> umass0:  on uhub1
> da0 at umass-sim0 bus 0 target 0 lun 0
> da0:  Fixed Direct Access SCSI-2 device 
> da0: 1.000MB/s transfers
> da0: 194481MB (398297088 512 byte sectors: 255H 63S/T 24792C)
> 
> These nodes are created:
> 
> # ls -1 /dev/da*
> /dev/da0
> /dev/da0s1
> /dev/da0s1c
> 
> Then:
> 
> # mount /dev/da0s1c /media/disk6
> mount: /dev/da0s1c : Invalid argument

This is caused by the nmount system call returning EINVAL. Quoting from
mount(2): 

[EINVAL]     The super block for the file system had a bad magic
     	     number or an out of range block size.

After partitioning and labeling the disk, did you make filesystems on
the partitions with newfs?

Roland
-- 
R.F.Smith                                   http://www.xs4all.nl/~rsmith/
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