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jesrani
October 22nd, 2008, 04:58 AM
When I plugged in my USB flash disk, nothing happens. I think on 7.10 it used to automount and show on the desktop. After I upgraded to 8.04 it doesnt work. What to do.

jesrani
October 22nd, 2008, 05:24 AM
An update. When I opened the partition editor with the USB plugged in I could not find it.

kansasnoob
October 22nd, 2008, 05:55 AM
In 8.04 I always install pmount from synaptic to auto-mount all of my external drives.

I used to use usbmount but I've come to prefer pmount which depends on hal, so make sure hal is installed also.

The description for pmount in synaptic pretty well explains it all.

jesrani
October 22nd, 2008, 07:38 AM
I installed pmount. Hal was already installed. Rebooted. Same problem. The disk does not show up in partition editor either.

jesrani
October 22nd, 2008, 10:08 AM
Hello, can anyone help with this please. I need to connect the usb drive to my computer.

OldGrey
October 22nd, 2008, 11:35 AM
A flash drive should automount in 8.04. Did you upgrade or do a clean install? In my experience an upgrade sometimes can be problematic.

vanadium
October 22nd, 2008, 11:38 AM
Test the drive on another USB port, on another computer. When a drive is not at all recognized, a hardware problem is usually the cause. Check for sure that Ubuntu does not see your drive by plugging it in and issuing the command



sudo blkid

jesrani
October 22nd, 2008, 12:31 PM
I tested on another computer with XP and its working fine. When I put the code "sudo blkid", I get following results:
/dev/sda1: UUID="d3899dc6-d2c3-442d-a679-b026cdb1ba60" SEC_TYPE="ext2" TYPE="ext3"
/dev/sda5: UUID="a1929de1-4d05-4a45-88bb-a5616e979b7c" SEC_TYPE="ext2" TYPE="ext3"
/dev/sdb1: UUID="e84f16ae-36ad-4e0e-bdff-f6e9046e1cbd" SEC_TYPE="ext2" TYPE="ext3"
/dev/sda6: TYPE="swap" UUID="d56dbda3-f3ad-4d7a-a044-1a5b777aeec7"

The results are same with or without the USB drive plugged in. It is the 2 harddisks and the partitions only which are showing up as well as the swap. So what is wrong. This used to be ok till 7.10 Ubuntu.

baddnady23
October 22nd, 2008, 12:51 PM
Have you cleanly ejected it from windows before using it in ubuntu? If not this will cause problems

jesrani
October 22nd, 2008, 12:56 PM
Have you cleanly ejected it from windows before using it in ubuntu? If not this will cause problems

I just did that, plugged into windows, properly ejected and then back to Ubuntu. No change.

vanadium
October 22nd, 2008, 04:15 PM
I probably should have asked you to post the output of



sudo fdisk -l


in the first place: only that will tell definitely wether your drive is not seen. The output of blkid shows that no partition is seen. Is this a standard, common USB or does it contain some proprietary file systems?

jesrani
October 23rd, 2008, 11:45 AM
Its just a normal 1Gb transcend usb stick which is running OK on my windows PC. The output of fdisk is as under :
Disk /dev/sda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0xf964f964

Device Boot Start End Blocks Id System
/dev/sda1 * 1 1958 15727603+ 83 Linux
/dev/sda2 1959 9729 62420557+ 5 Extended
/dev/sda5 1959 9599 61376301 83 Linux
/dev/sda6 9600 9729 1044193+ 82 Linux swap / Solaris

Disk /dev/sdb: 250.0 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00040d4a

Device Boot Start End Blocks Id System
/dev/sdb1 1 30401 244196001 83 Linux


Is it possible the USB ports are not detected?

vanadium
October 23rd, 2008, 12:40 PM
This confirms that the software does not see your USB. I am unfortunately not experienced to do further troubleshooting. Has it ever worked on that PC? Some people might be able to tell something from the output of the kernel. Disconnect the drive, then connect the drive. The command "dmesg" will display all kernel messages, and there it can be seen (by experts) how (and if) the kernel reacted on inserting the USB and eventually what went wrong. However, I wonder if the kernel will see something if the drive is not in the output of fdisk in the first place.

Obviously, you should try also if the problem is there also with another USB, or an USB hard drive as part of your troubleshooting.