error mounting USB disk: Invalid argument

[Roland Smith]

On Sat, May 31, 2008 at 12:17:57PM +0200, Colin Brace wrote:
> 
> On Sat, 31 May 2008 11:42:21 +0200, Roland Smith <rsmith at xs4all.nl> wrote:
> 
> > After partitioning and labeling the disk, did you make filesystems on
> > the partitions with newfs?
> 
> Ah, no. According to Absolute FreeBSD, 2nd ed, which I have in front of me,
> newfs invoked by sysinstall, which I used to create the slice and partition
> it (p 241).
> 
> Anyway, I now try running newfs in terminal, but it throws up some errrors:
> 
> # newfs /dev/da0s1c
> /dev/da0s1c: 194474.3MB (398283416 sectors) block size 16384, fragment size
> 2048
> 	using 1059 cylinder groups of 183.77MB, 11761 blks, 23552 inodes.
> super-block backups (for fsck -b #) at:
> newfs: wtfs: 65536 bytes at sector 160: Invalid argument
> 
> # newfs /dev/da0s1c
> /dev/da0s1c: 194474.3MB (398283416 sectors) block size 16384, fragment size
> 2048
> 	using 1059 cylinder groups of 183.77MB, 11761 blks, 23552 inodes.
> super-block backups (for fsck -b #) at:
>  160, 376512, 752864, 1129216, 1505568, 1881920, 2258272, 2634624, 3010976,
> 3387328, 3763680, 4140032,newfs: wtfs: 65536 bytes at sector 4516384:
> Invalid argument
> 
> I tried it several times; the errors seem kinda random, since they vary
> each time I run the command.
> 
> Could it be that the chipset of this USB device, JMicron, is not entirely
> supported by FreeBSD? The reason I ask is because this appears to be an
> issue under Linux; cf, http://www.qbik.ch/usb/devices/showdev.php?id=3751

I've only had trouble with JMicron when using geli(8) encrypted
partitions on a machine that was underpowered. But not when just doing a
newfs. 

You could try building a kernel without umass, but with atausb and
atapifd. The disk will be attached as a floppy drive, /dev/afd*

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