Problem mounting a disk over USB

[Rick Stevens]

On Mon, 2007-08-13 at 20:31 -0400, Steven W. Orr wrote:
> http://tinyurl.com/2pxlwm
> 
> Steven W. Orr wrote:
> > I have some data I need to get to on a harddrive that has a USB
> > connection. I personally formatted that drive as ext3 and put the data
> > on it from another linux box. Now the drive is home with me. I powered
> > the drive up and made the usb connection. I also said
> > modprobe usb-storage
> > I already have two SATA drives in use which are sda an sdb.
> > 
> > Also
> > 1013 > lsmod | grep usb
> > usb_storage            74505  0
> > scsi_mod              135529  3 usb_storage,libata,sd_mod
> > 1014 > lsmod | grep scsi
> > scsi_mod              135529  3 usb_storage,libata,sd_mod
> > 
> > Here's what syslog had to say when I plugged in the usb connector:
> > 
> > Aug 13 18:29:27 saturn kernel: usb 1-5: new high speed USB device using
> > ehci_hcd and address 11
> > Aug 13 18:29:27 saturn kernel: usb 1-5: device descriptor read/64, error
> > -71
> > Aug 13 18:29:27 saturn kernel: usb 1-5: device descriptor read/64, error
> > -71
> > Aug 13 18:29:27 saturn kernel: usb 1-5: new high speed USB device using
> > ehci_hcd and address 12
> > Aug 13 18:29:27 saturn kernel: usb 1-5: device descriptor read/64, error
> > -71
> > Aug 13 18:29:28 saturn kernel: usb 1-5: device descriptor read/64, error
> > -71
> > Aug 13 18:29:28 saturn kernel: usb 1-5: new high speed USB device using
> > ehci_hcd and address 13
> > Aug 13 18:29:28 saturn kernel: usb 1-5: device not accepting address 13,
> > error -71
> > Aug 13 18:29:28 saturn kernel: usb 1-5: new high speed USB device using
> > ehci_hcd and address 14
> > Aug 13 18:29:29 saturn kernel: usb 1-5: device not accepting address 14,
> > error -71
> > 
> > 
> > Can someone *PLEASE* tell me what to do? :-(
> > 
> > 
> "Mikkel L. Ellertson" <mikkel at infinity-ltd.com> wrote:
> 
> [The last time I ran into these type of errors, it was a USB hard
> drive that was powered off the USB bus. The USB port it was plugged
> into could not supply enough power for the drive. So the electronics
> of the USB to IDE interface was not initializing properly. Changing
> the connection to a self powered hub fixed the problem. I seem to
> remember another case where only the electronics was powered by the
> USB bus. It would not work when attached to a bus powered hub.]
> 
> I suspect that's not my problem. This is a 160G drive with a USB adapter 
> on it with a seperate powersupply. So the power to the disk is not coming 
> from USB. Is it possible there's an incompatibility between my computer 
> with USB2.0 and the connection to the disk being a possible USB1.2?

Most USB 2.0 stuff is backwards compatible with USB 1.1, so that's
probably not the problem.

There is an issue with the older udev system and USB storage.  You
probably need to update udev via "yum update udev".  You should also
be running the -41 kernel.

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- Rick Stevens, Principal Engineer             rstevens at internap.com -
- CDN Systems, Internap, Inc.                http://www.internap.com -
-                                                                    -
-      Do you know how to save five drowning lawyers?  No?  GOOD!    -
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