[dm-crypt] cryptsetup without sudo

Clay Wells cwells73 at gmail.com
Tue Feb 25 17:01:48 CET 2014

If I understand the question, I think he wants to set up a volume without
being root.

What I have done in the past is setup the volume (say a USB drive) as root
but then chown myuser
and chmod +s myuser. Now I plug in the USB and unlock the device as my
user. I hope this addresses
your question, Henry.


On Mon, Feb 24, 2014 at 4:17 PM, .. ink .. <mhogomchungu at gmail.com> wrote:

> On Mon, Feb 24, 2014 at 3:29 PM, Henry Jenkins <henry at henryjenkins.name>wrote:
>> Is there some method using Ubuntu to set up a luks drive without
>> root/sudo access from the cli?
>> Currently I can use either `sudo cryptsetup luksOpen <drive> <name>` then
>> udisks or I can use gnome-disks to which does not requite sudo. So I'm
>> assuming there is a existing application that does not require using sudo
>> or the use of a GUI.
>> Motive - mounting a usb key without requiring elevated privs.
>> Thanks,
>> Henry Jenkins
> Your statements are a bit ambiguous to me.
> you want to unlock a LUKS volumes without using sudo or manually elevate
> privileges.This part is clear,the part that is not is if you want this
> functionality from CLI or from GUI.
> If you want to unlock the volume on the CLI without manually
> elevating,just call udisks CLI from the terminal with the LUKS device and
> udisks will unlock it for you and mount it.
> If you want to unlock the volume from the GUI without manually
> elevating,you can use gnome-disks directly to access the device and
> gnome-disks will unlock it for you and mount it.
> If you want to unlock the volume from another GUI,your file manager should
> also be able to unlock it,just look for the device entry somewhere on the
> device panel on the file manager,click the drive and the file manager will
> unlock it for you and mount it.
> udisks and a few of its GUI front ends should allow you to do what you
> want without you manually elevating privileges.
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