I'm continuing the post #22 by HKR
I've corrected some commands
dd if=/dev/zero bs=1M count=665 of=my-container.iso
On this command, you will notice the use of .iso rather than .img used in
this tutorial http://elephly.net/posts/2013-10-01-dm-crypt.html
Using a .iso file is better for Brasero, because it is a recognized format.
sudo cryptsetup luksFormat my-container.iso
sudo cryptsetup luksOpen ~/my-container.iso secret-device
sudo mkfs -t ext4 /dev/mapper/secret-device
mkdir ~/my-mount-point
sudo mount /dev/mapper/secret-device ~/my-mount-point
sudo umount ~/my-mount-point
sudo cryptsetup luksClose secret-device
sudo cryptsetup luksOpen ~/my-container.iso secret-device
sudo mount /dev/mapper/secret-device ~/my-mount-point
sudo chown [your name session] my-mount-point
After a my-container.iso burning, the things I feared in post #19 happened.
When you insert the encrypted cd-r and you try to open it in Nautilus, the
usual window you can find with your external HD or USB key works very well.
But after have entering your password there is this warning :
Impossible to access to « 695 MB Volume»
Error mounting /dev/dm-3 at /media/[your
session]/d2848ff6-7b28-44d0-91f3-8a454c84fb23: Command-line `mount -t "ext4"
-o "uhelper=udisks2,nodev,nosuid" "/dev/dm-3" "/media/[your
session]/d2848ff6-7b28-44d0-91f3-8a454c84fb23"' exited with non-zero exit
status 32: mount: block device
/dev/mapper/luks-e8d99aff-7c20-445b-9b1a-88d350197868 is write-protected,
mounting read-only
mount: wrong fs type, bad option, bad superblock on
/dev/mapper/luks-e8d99aff-7c20-445b-9b1a-88d350197868,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
There is the problem of the mounting point named "my-mount-point" and you
can't acces to your files. It is also impossible to eject the CD-R without
restart the machine.
Does anyone understand what really says this warning ?
Thank you.
