Sometimes, you can simply wipe the drive then setup as normal.
dd if=/dev/zero of=<usb drive> bs=512k
It will wipe with zeroes until completed. Then your drive should be
clean. That will rule out whether there is a chip making it read-only or
the partitioning scheme.
I do this drive wipe every day on drives and it works pretty well. Those
"secure" drives are a different story as they have a firmware based 1MB
partition you cannot "delete" via traditional means.
On Thu, 2009-10-29 at 08:17 -0700, Lisa Kachold wrote:
>
>
> On Mon, Oct 19, 2009 at 3:16 PM, mike Enriquez <mylinux@cox.net>
> wrote:
> I have a 4GB PNY thumb drive that has issues? It has become
> "Write
> Protected". It is an Optima pro Attache. I searched the net
> and nothing
> that I have found has helped me out.
> Has any one in the group had this happen to them and how did
> you remove
> the write protection.
> I cannot see any special files on it except 2 of my own.
> Any suggestions out there?
> Thanks
>
> Mike Enriquez
>
> Hi Mike!
>
> There are a load of Window$ type repair suggestions here (Since this
> is a known bug in Xp SP2):
> http://www.techspot.com/vb/all/windows/t-18654-USB-Flash-Drive-Write-protection.html
>
> Linux solutions are going to be basic drive management:
>
> plug in usb flash drive and mount (if you don't have automouter)
>
> dmesg to verify the device:
>
> # dmesg
> # mkdir /mnt/usbwork
> # mount /dev/sda1 /mnt/usbwork
> (it might whine that you didn't specify the type if so:)
> # mount -t vfat (or NFS) /dev/sda1 /mnt/usbwork
> # cd /mnt/usbwork
> Copy off your old files
> # cp -r * $HOME
> # umount /mnt/usbhome
> # fdisk /dev/sda
>
> Remove all the partitions using the "d" command.
> create new partitions using the "n" command (you only really need one
> big one)
> set the file type "W95 FAT32 (LBA)" (or ext3 if making a bootable
> Linux distro) "t" (types will display)
> if this is going to hold a distro set the bootable flag "a"
> check your work: "p"
> save "w"
>
> Lay on a file system (that matches your file type):
>
> mkfs.vfat -I -n USBDRIVE /dev/sda1
>
> Your drive should work now just fine!
>
> Reference: http://ubuntuforums.org/showthread.php?t=346737
> --
> Skype: (623)239-3392
> AT&T: (503)754-4452
> www.obnosis.com
>
>
>
>
>
>
>
>
>
>
>
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