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/dev/sd$usbdevice is not a valid LUKS device
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GSnake
Tux's lil' helper
Tux's lil' helper


Joined: 10 Sep 2012
Posts: 120
Location: Italy

PostPosted: Tue Feb 10, 2015 2:21 pm    Post subject: /dev/sd$usbdevice is not a valid LUKS device Reply with quote

Hello guys I'm having this (quite big) problem.
My PC can't recognize my LUKS encrypted usb device.

Code:

# cryptsetup luksOpen /dev/sdb1 usb
/dev/sdb1 is not a valid LUKS device.

This is the dmesg output:
Code:
[ 1244.163749] sd 12:0:0:1: [sdb] 245504 512-byte logical blocks: (125 MB/119 MiB)
[ 1244.164649] sd 12:0:0:1: [sdb] Write Protect is off
[ 1244.164657] sd 12:0:0:1: [sdb] Mode Sense: 23 00 00 00
[ 1244.165576] sd 12:0:0:1: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[ 1244.181854]  sdb: sdb1
[ 1244.186993] sd 12:0:0:1: [sdb] Attached SCSI removable disk


Furthermore, the device DOES NOT show up in blkid output.

And, finally, this is my kernel config: http://pastebin.com/ng6M9x1V

It has to be noticed that my USB device WORKS on another PC running Kubuntu.
Thank you very much!
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Hu
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Joined: 06 Mar 2007
Posts: 14297

PostPosted: Wed Feb 11, 2015 2:10 am    Post subject: Reply with quote

What is the output of file -s /dev/sdb1?
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GSnake
Tux's lil' helper
Tux's lil' helper


Joined: 10 Sep 2012
Posts: 120
Location: Italy

PostPosted: Wed Feb 11, 2015 8:18 am    Post subject: Reply with quote

I answer myself: my USB device used GPT while I didn't have it compiled in my kernel. Solved! :-D
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