I have two identical brand new external SATA drives:
(Western Digital Scorpio 500G SATA 2.5" notebook HD)
mounted in Coolermaster enclosure, providing USB connection
to computer.
When plugged into 2 different computers (Slackware 12.2, 13 respectively)
the device is 'seen' but no device is assigned and the device is 'offlined'
after about 20 seconds.
Here is the tail of /var/log/messages:
Code:
Nov 23 13:46:32 geezer kernel: usb 1-4.2: new high speed USB device using ehci_hcd and address 6
Nov 23 13:46:32 geezer kernel: usb 1-4.2: configuration #1 chosen from 1 choice
Nov 23 13:46:32 geezer kernel: scsi4 : SCSI emulation for USB Mass Storage devices
Nov 23 13:46:43 geezer kernel: usb 1-4.2: reset high speed USB device using ehci_hcd and address 6
Nov 23 13:47:20 geezer last message repeated 4 times
Nov 23 13:47:20 geezer kernel: scsi 4:0:0:0: scsi: Device offlined - not ready after error recovery
There have been a couple of similar queries posted in the past:
e.g.
http://www.linuxquestions.org/questions/slackware-14/portable-usb-enclosure-not-recognized-680939/"]http://URL="http://www.linuxquestions.org/questions/slackware-14/portable-usb-enclosure-not-recognized-680939/"]http://www.linuxquestions.org/questions/slackware-14/portable-usb-enclosure-not-recognized-680939/[/URL][/URL]
But no definitive solutions:
As these are brand new and identical I think we can rule out hardware malfunction.
Greatly appreciate any pointers as to how to chase this.
Steve