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Dell USB hard disk not recognized in Ubuntu 11.10

When I insert the USB disk I do not see it in Nautilus (left hand pane) lsusb surprisingly fails to report any pciid:vendor id related to the removable usb inserted I checked when the disk was not attached

sudo lsusb > without_disk

and when disk was attached

sudo lsusb >with_disk

and

diff without_disk with_disk

there was no difference

and also checked dmesg

the only thing after inserting USB in the USB slot dmesg shows is 

[   69.540224] usb 2-1: new high speed USB device number 2 using ehci_hcd
[   69.674505] scsi7 : uas
[   69.675815] scsi 7:0:0:0: Direct-Access     Dell     USB Portable HDD 040D PQ: 0 ANSI: 6

I do not see any pci id: vendor id combination with lsusb for this 1 TB hard disk. The hard disk is working correctly on a Windows 7 system so problem here is with Ubuntu 11.10 only. What could be the issue? It is a new USB hard disk this one

share|improve this question
Did you try it with a newer version of Ubuntu, maybe using it in Live mode? If it does work, the issue can be that the disk is too much new for Oneiric. – dadexix86 Jan 9 at 17:52

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