I was wondering if anyone could point me in the right direction to change distos. I currently am running Xubuntu and am considering moving to Debian.
I partitioned my drive with a /home parturition that was encrypted with LUKS on install.
Is there a way to properly move/copy keys, etc or should I copy home and them restore it?
Look into /etc/crypttab file, it should have the path to the key afaik
Make sure you have a good backup and be careful in the Debian partitioner. Unless they have changed something recently, rather than unlocking and using the current encrypted drive like most other distros, it will ask you for your key and then re-encrypt the drive (clearing data). It does this prior to confirming any partition changes. Ubuntu has done the same in my experience.
Every time I have tried to keep data I had to do some manual stuff. Fedora, SUSE, most others are happy to unlock it.
The encryption key is stored in the luks header on the disk and the phrase or key to open the encryption key can be entered at boot or after via the keyboard or from a file (usually a usb drive). So long as the luks header and encrypted data are not damaged and so long as you have the phrase or key that opens the encryption key it should survive the move. Take a dd backup of the disk just in case.
You have nothing to do if you have the keys already. But, a backup can always be welcome if things go south
