mikemoceri wrote:I thought that's how you're supposed to mount LVM volumes. Is there something I'm missing here?
Hello mikemoceri - I know this thread is a bit long in the tooth and I'm sorry for not coming across it sooner.
Here's the procedure I used on my own system, so I can vouch for the fact that it does work. Terminal commands as follows:
1.) sudo apt-get install cryptsetup lvm2 ### These two packages should already be installed, do this just to make sure
2.) sudo modprobe dm-crypt ### Verify the kernel module dm-crypt is active
3.) sudo modprobe dm-mod ### Verify the kernel module dm-mod is active
4.) sudo cryptsetup luksOpen /dev/sdc3 MYDATA ### Unlock the LUKS partition and label it MYDATA; this assumes sdc3 is the encrypted partition
5.) sudo vgscan ### Scan for volume groups; you should find volume group "mint-vg" in the output
6.) sudo vgchange -ay mint-vg ### Make the volume group mint-vg active as well as all of the logical volumes it contains
7.) sudo lvscan ### Scan for logical volumes in the volume group; you should find the logical volume "/dev/mint-vg/root" in the output
8.) sudo mkdir /media/root ### Create a new directory /media/root in order to mount the logical volume /dev/mint-vg/root
9.) sudo mount /dev/mint-vg/root /media/root ### Mount the logical volume /dev/mint-vg/root as /media/root
At this point you should see an icon for /media/root appear on the Desktop. You will be able to copy all of your data files from /media/root over to your new system or to a pre-formatted USB flash drive if you're running from a live CD session. When you're done, unmount as follows:
10.) sudo umount /media/root ### Unmount /media/root
11.) sudo cryptsetup luksClose MYDATA ### Lock the encrypted partition; I got an error message here, but it really doesn't matter since you've already saved your data and will be shutting down
If Bill Gates had a nickel for every time Windows crashed . . . . . oh wait, he does.