So you install Debian 13 and everything is working fine, you did FDE with the guided wizard, so everything is encrypted (except boot, which for some reason is not encrypted unlike Veracrypt for Windows). But supposedly it’s safe and no data is leaked there.
Well the question now is, how do you do a backup of this?
Or should you manually do the whole thing again per drive? I mean doing this involved erasing the free space on the disk before encrypting, so maybe a plain clone of the drive does not do this.. so perhaps not be lazy and manually install Debian with FDE per drive to backup?
Command “dd” can be used to create a backup to a file or clone to a new disk the entire source disk containing dmcrypt-LUKS FVE. I have tested this backup/restore process, and it works OK. It is not time efficient, but it is reliable and even allows you to migrate an operating system from one computer to another.
I have read that security experts recommend not cloning disks (imaging) for use on multiple live systems. For instance, say you have a dozen systems, and you want to build the system one time, create an image of the first system, and then restore the same image (containing dmcrypt-LUKS) to the other eleven systems. I do not understand the reasoning for it, but they claim that creates additional risk.
Im not sure so I will just end up installing manually.
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