Welcome to the most active Linux Forum on the web.
Go Back > Forums > Linux Forums > Linux - Hardware
User Name
Linux - Hardware This forum is for Hardware issues.
Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?


  Search this Thread
Old 09-26-2009, 05:43 PM   #1
Registered: Mar 2007
Location: England
Distribution: Arch
Posts: 392

Rep: Reputation: 34
Is this USB flash drive dead?

Hi, I have a USB flash drive that has been working fine, but all of a sudden it has stopped working. The device just shows as /dev/sda without the partition sda1.

fdisk says -
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel with disk identifier 0x92045b41.
Changes will remain in memory only, until you decide to write them.
After that, of course, the previous content won't be recoverable.

Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)

cfdisk says -
Unknown partition table type
Do you wish to start with a zero table [y/N] ?

If I wipe everything and create a new partition, it looks OK until I exit (c)fdisk; sda1 still does not show and re-entering (c)fdisk shows the same errors (changes are lost).

Any ideas? Thanks.
Old 09-26-2009, 06:19 PM   #2
Registered: Feb 2009
Distribution: FreeBSD, OpenBSD, NetBSD, Debian, Fedora
Posts: 770
Blog Entries: 52

Rep: Reputation: 68
Try it under another distro or knoppix. If the same message appears, it's toast.
Old 09-26-2009, 06:39 PM   #3
Registered: Mar 2007
Location: England
Distribution: Arch
Posts: 392

Original Poster
Rep: Reputation: 34
Same problem under a different distro.

I tried mknod /dev/sda1 b 3 1 and I can manually mount it, but I have to do this manually on every computer. Should sda1 not be 8 1? Only 3 1 works. Very weird.
Old 09-26-2009, 07:19 PM   #4
Senior Member
Registered: Sep 2003
Posts: 3,171

Rep: Reputation: 115Reputation: 115
After you manually mount it, it works?

Then the flash drive is OK, but you need a udev rule that handles that particular drive. I had the same problem with a PNY drive; I made a udev rule for it.
Old 09-27-2009, 04:36 AM   #5
Registered: Mar 2007
Location: England
Distribution: Arch
Posts: 392

Original Poster
Rep: Reputation: 34
Yes it works then.

I'm planning on using this as a bootable drive on multiple computers but it's not detected; very annoying.


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
USB Flash Drive, write protect, and flash file system questions storkus Linux - Hardware 4 12-01-2008 05:32 AM
Dead NTFS usb drive - Kubuntu 7.10 dyasny Linux - Hardware 6 02-18-2008 04:35 PM
USB Drive - Is It Dead? carlosinfl Linux - Hardware 7 09-06-2007 07:19 PM
USB drive - dead or just troublesome? nemarona Linux - Hardware 7 06-01-2007 09:31 AM
PQI USB flash card (SM) reader/writer freezes Knoppix linux dead! stukennedyuk Linux - Hardware 4 03-19-2004 08:58 AM > Forums > Linux Forums > Linux - Hardware

All times are GMT -5. The time now is 02:56 AM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration