View Full Version : [ubuntu] USB drives don't recognize hardware plugged into them.

November 17th, 2008, 03:36 AM
After upgrading to 8.10 my usb drives do not recognize any external hardware connected to them. I've tried both my flash drive, external dvd player, and printer and nothing works like it had before with version 8.04. I hope this info helps.

zach@zach-desktop:~$ sudo fdisk -l

Disk /dev/sda: 200.0 GB, 200049647616 bytes
255 heads, 63 sectors/track, 24321 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x0e940e94

Device Boot Start End Blocks Id System
/dev/sda1 * 1 24133 193848291 83 Linux
/dev/sda2 24134 24321 1510110 5 Extended
/dev/sda5 24134 24321 1510078+ 82 Linux swap / Solaris
zach@zach-desktop:~$ sudo blkid
/dev/sda1: UUID="7c49a3f1-6f03-4dba-97d3-4b6067761d69" TYPE="ext3"
/dev/sda5: TYPE="swap" UUID="06d410d5-ffdd-4c57-be78-e5d45cb15935"
zach@zach-desktop:~$ sudo lshw -C disk
PCI (sysfs)
description: ATA Disk
product: ST3200822A
vendor: Seagate
physical id: 0
bus info: scsi@0:0.0.0
logical name: /dev/sda
version: 3.01
serial: 4LJ0T7A8
size: 186GiB (200GB)
capabilities: partitioned partitioned:dos
configuration: ansiversion=5 signature=0e940e94
description: CD-R/CD-RW writer
product: LTR-52327S
vendor: LITE-ON
physical id: 1
bus info: scsi@1:0.0.0
logical name: /dev/cdrom2
logical name: /dev/cdrw2
logical name: /dev/scd0
logical name: /dev/sr0
version: QS58
capabilities: removable audio cd-r cd-rw
configuration: ansiversion=5 status=nodisc

Thanks in advance!!!

November 18th, 2008, 01:59 AM
Did you ever get your USB ports working?


November 18th, 2008, 05:41 PM
no i'm still having the same issues. do you have any ideas what the problem is?

November 19th, 2008, 02:03 AM
G'day vanagonman,

No luck yet, but my previous experiences with Ubuntu makes me confident of a fix soon if we keep digging and prompting. I've submitted a bug and it is already being investigated. Its at
If you find anything, please let me know.
Good luck,

November 24th, 2008, 08:58 AM
G'day vanagonman,

I've had success with the first tip in the following page:

and using the instructions in:

I still don't know the cause, or if this needs to be put in the GRUB line as a permanent fixture. Keep an eye on https://bugs.launchpad.net/ubuntu/+bug/299020 for further revelations if this is of any help...


November 25th, 2008, 06:01 AM
hi philcash,

good to hear that you were successful with this problem. :)

what is the command you need to type to get to the /boot/grub/menu.lst for setting the kernel parameters?

If I enter that in the command line it returns "command not found."