Skip to content

USB Drive mount problems Ubuntu 8.10 Intrepid

It seems that the Ubuntu upgrade has done something to the USB drive detection. DMESG shows a continuous loop when a Buslink 40 GB USB 2.0 drive is attached.

[15183.419492] sd 9:0:0:0: [sdf] Add. Sense: No additional sense information
[15183.421486] sd 9:0:0:0: [sdf] Sense Key : No Sense [current]

This appears to be a known kernel bug (287701 or 262344 or 273372) The discussion at launchpad about bug 264789 is a good example of how people try to find a fix for this sort of thing. That discussion lead to bug 221983 which suggested a udev rule fix.

The comment by Grzegorz Ślusarek to add ENV{DEVTYPE}==”partition”, at the front of line 59 did fix this particular problem. That invites some investigation into UDEV rules to figure out what this change actually does. Tim Wright notes that “It fixes the issue for me too. The problem is, it probably breaks hotplug access to filesystems on unpartitioned devices.”

Also note that messing with these files is a temporary fix. An update or upgrade to the UDEV software may well overwrite these changes.

Also keep in mind that invoking root privilege to make changes in configuration files for basic services, like hardware access, is like taking off cross country in unknown territory. Be prepared for the worst.

Post a Comment

You must be logged in to post a comment.