Comments on: Use an Encrypted USB drive/partition

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By: sex sikiş

sex sikiş — Tue, 28 Sep 2010 14:54:25 +0000

I tried this with 6.06 and it works fine, but I can’t unmount the partition (by right-clicking the icon). It tells me “/media/usbdisk/ is not in the fstab (and you are not root)”. Is there any way I can unmount it as a user this way? I could make my own Icons with little scripts and matching sudo-entries, but I’d prefer the it the other way since there are also other poeple working on the PC that might be confused…

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By: spielwiese. » Blog Archive » backups, again.

spielwiese. » Blog Archive » backups, again. — Fri, 28 Aug 2009 03:35:04 +0000

[...] laptop, and no backup. in case something goes terribly wrong, i’m screwed. i just created an encrypted partition on the disk; this is really pretty easy and not much command line typing is required, in particular [...]

By: Gus Hauptfleisch

Gus Hauptfleisch — Sun, 28 Sep 2008 12:54:50 +0000

the way I see it is as such (someone please correct me if wrong).
The encrypted drive does not automatically get assigned a device name (eg /dev/sdc) until authentication has been completed – otherwise you would simply be able to mount the drive in the correct file system and read the data – defeats the object. So authentication
So the procedure is as follows
1)insert the hardware (quite obvious)
2)find the hardware is plugged in and appears in fdisk -l
3) terminal open with
cryptsetup luksOpen /dev/sdX diskname OR
3) find the encrypted ID of the hardware under /dev/mapper and (in a terminal)
4)cryptsetup luksOpen /dev/sdX resultofdevmapper (you should be challenged for your password you used at point of drive encryption)
5) now mount it as follows
sudo mount -t fstype /dev/mapper/resultofdevmapper /place/to/mount
6) sounds too easy – even typing it?
let me know if this was helpful at all?
regards

By: Ubuntu-Ork

Ubuntu-Ork — Wed, 17 Sep 2008 23:16:47 +0000

I tried installing an almost completely encrypted system on a USB harddrive, and it almost always won’t boot.

/boot : unencrypted
dm_crypt volume with partitions: /, /home, swap

Almost every time I try to boot, it won’t even get to the stage where it asks for the passphrase, and instead, it complains it cannot find the volume by its UUID, but the UUID is correct.

I believe this is an issue with the combination of USB and encryption, as it does not occur when using either one of them.

By: saurabh

saurabh — Sat, 05 Apr 2008 01:41:00 +0000

Everything works fine till i have started to use the encrypted vol. I entered the passphrase and it says

“Error org.freedesktop.Hal.Device.Volume.Crypto.SetupError
/dev/sdb is already setup?”

I am newbie… will anyone guide me please.

By: James

James — Fri, 22 Jun 2007 14:28:09 +0000

This works very nicely for me.

I was going to ask how to mount this from the command line, but I just figured it out. (It wouldn’t mount when I was missing iocharset=utf8 )

# sudo cryptsetup luksOpen /dev/sda2 usbkey
# sudo mount -t vfat /dev/mapper/usbkey /mnt/secret -o rw,noexec,nosuid,nodev,quiet,shortname=mixed,uid=1001,gid=1001,umask=077,iocharset=utf8

I still cannot figure out how to open it in windows with FreeOTFE. Any hints?

By: Encryption, USB Drive, Ubuntu, Windows, and You! at elwoodicious

Encryption, USB Drive, Ubuntu, Windows, and You! at elwoodicious — Thu, 24 May 2007 14:45:29 +0000

[...] cribbed from carthik’s post at Ubuntu Blog and from FreeOTFE’s solid [...]

By: Jorge

Jorge — Mon, 13 Nov 2006 19:00:50 +0000

On my system I also needed these modules loaded (add to /etc/modules for boot loading): dm_mod, dm_crypt, aes,
and sha256.