USB 1.0 IDE to ATAPI drive enclosure failure

Jesse Guardiani jesse at
Mon Nov 24 13:44:15 PST 2003

Howdy list,

I'm running FreeBSD 5.1-RELEASE. I just bought a generic
USB 1.1/2.0/firewire external drive enclosure for my 32gb
Travelstar 2.0" 12.5mm hard drive.

The device shows up like this:

Nov 18 14:06:16 trevarthan kernel: umass0: Acer Labs USB 2.0 Storage Device, rev 2.00/1.03, addr 3
Nov 18 14:06:16 trevarthan kernel: da0 at umass-sim0 bus 0 target 0 lun 0
Nov 18 14:06:17 trevarthan kernel: da0: <USB 2.0 Storage Device 0100> Fixed Direct Access SCSI-0 device
Nov 18 14:06:17 trevarthan kernel: da0: 1.000MB/s transfers
Nov 18 14:06:17 trevarthan kernel: da0: 30520MB (62506080 512 byte sectors: 255H 63S/T 3890C)

But `ls -al /dev/da*` reveals no slices:

crw-r-----  1 root  operator    4,  22 Nov 18 13:35 /dev/da0

The hard disk inside this enclosure was formatted with a 10gig
FAT32 partition. It works fine in a Coolmax Gemini 2.5" USB 2.0/1.1
drive enclosure (which shows up as IDE->ATA under Windows XP), and
it works fine in this enclosure as long as I'm running Windows XP
(but it shows up differently than the Gemini under XP: IDE-ATAPI).
It just doesn't work under FreeBSD 5.1-RELEASE or FreeBSD 4.8-RELEASE
for some reason...

I've found the following links relating to similar problems:

But no solutions. Has the USB code been updated since FreeBSD 5.1-RELEASE?
Is there a chance it will work if I cvsup to -CURRENT?

I contacted the gentleman from the first link above, and he said that
the only thing different about his configuration (other than hardware)
is that:

1.) He connects through a USB hub
2.) He runs -CURRENT from Nov 7th

I can't seem get my hands on a USB hub, so it looks like my only option is -CURRENT.

Does anyone have any clues to help get this drive working? I'm all for debugging
of any kind, including coding. I'm just not sure where to start.


Jesse Guardiani, Systems Administrator
WingNET Internet Services,
P.O. Box 2605 // Cleveland, TN 37320-2605
423-559-LINK (v)  423-559-5145 (f)

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