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[Giovanni Bortolozzo <question78151@xxxxxxxxxxxxxxxxxxxxx>]

New question #78151 on Ubuntu:
https://answers.launchpad.net/ubuntu/+question/78151

Hi guys, 
I'm new to Ubuntu (but I use Debian sid since 8 years).
Anyway I just install the karmic alpha, since with the last stable version my nVidia ethernet card is not recognized and then I can't use it.

Anyway, I have an extern usb disk formatted with ntfs. On boot it seem to be mounted but as soon as I try to access it I get an I/O error.

With dmesg I can see this messages

[   62.916010] usb 1-1: reset high speed USB device using ehci_hcd and address 2
[   70.916009] usb 1-1: reset high speed USB device using ehci_hcd and address 2
[   71.079392] sd 2:0:0:0: [sdc] Unhandled sense code
[   71.079395] sd 2:0:0:0: [sdc] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[   71.079398] sd 2:0:0:0: [sdc] Sense Key : Medium Error [current] 
[   71.079401] sd 2:0:0:0: [sdc] Add. Sense: Unrecovered read error
[   71.079405] end_request: I/O error, dev sdc, sector 6291527
[   71.079458] Buffer I/O error on device sdc1, logical block 786433

The really strange think is that if I login as root umount the disk and then mount it again (using mount -a or mount /usb-disk1) it works perfectly (it looks like the disk is mounted too early).

On fstab I have this line

UUID="A25C76EB5C76B99D" /usb-disk1 ntfs-3g	rw,user,auto,noexec,umask=000	0 5

The system is upgraded to the last avaiable packages.

The kernel version is
Linux nemo 2.6.31-4-generic #22-Ubuntu SMP Fri Jul 24 18:06:15 UTC 2009 i686 GNU/Linux

Any idea?

Thanks in advance
Giovanni








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