Re: support for encrypted volumes?
- From: Liviu Andronic <landronimirc@xxxxxxxxx>
- To: emelfm2@xxxxxxxxxxxxx
- Date: Thu, 26 Aug 2010 21:52:36 +0300
On Thu, Aug 26, 2010 at 9:40 AM, <tpgww@xxxxxxxxxxx> wrote:
> I know nothing at all about encrypted volumes, nor do I have one to use for
> testing purposes.
>
It is not that difficult to set up a an encrypted device [1]. After
installing the necessary packages, you can simply follow steps 5 to 7.
(Be sure to do this on an un-needed partition, because all data will
be lost in the process.)
[1]
http://ubuntu-tutorials.com/2007/08/17/7-steps-to-an-encrypted-partition-local-or-removable-disk/
> However a mount command should behave generically. e2 does not itself
> actually do anything. I do think it's worth exploring what might be happening
> to trigger your reported error. Can you provide any further insights e.g.
> - effect of [un]mounting the device via your mountpoints menu
>
>mount "/media/misc" (11240)
mount: special device /dev/mapper/misc does not exist
>mount "/media/misc" (11240) returned '32'
For reference, my /etc/fstab contains
/dev/mapper/misc /media/misc ext2 defaults,users,noauto 0 0
If you need the whole file, let me know.
> - effect of commands mount "/mnt/misc" (as distinct from >mount "/mnt/misc")
> and even >mount /mnt/misc (no quotes)
>
All cli variations yield the same error code as above. I am getting
all these messages since in this session I haven't yet opened the
encrypted device using luksOpen and the password.
> - what happens when such commands are issued via a standard terminal
>
root@liv-laptop:/etc# mount "/media/misc"
mount: special device /dev/mapper/misc does not exist
After issuing
root@liv-laptop:/etc# cryptsetup luksOpen /dev/sda9 misc
Enter passphrase for /dev/sda9:
Key slot 0 unlocked.
the following
>mount "/media/misc" (11376)
>mount "/media/misc" (11376) returned '0'
works via emel's mountpoints menu.
> - if you build for udisks/devkit-disks operation, is there any
> device-relevant debug message(s)
>
I am not yet familiar with devkit, so I don't use it. I built emel
with default options.
I am not sure how to do it, but I think that emel could check whether
a device is LUKS-encrypted, and pop a dialogue requiring the password
when necessary. For example,
root@liv-laptop:/etc# cryptsetup status misc
/dev/mapper/misc is inactive.
when /media/misc wasn't yet mounted via LUKS, and
root@liv-laptop:/etc# cryptsetup status misc
/dev/mapper/misc is active:
cipher: aes-cbc-plain
keysize: 256 bits
device: /dev/sda9
offset: 2056 sectors
size: 1026041 sectors
mode: read/write
when the partition was decrypted. But I'm confident there's a nicer
way to probe for this.
Regards
Liviu
> Regards
> Tom
>
>
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