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How to image a Debian system on a zfs mirror?
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this post was submitted on 22 May 2024
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If you want an image, it doesn’t matter what the underlying file system is. You should be able to use a tool like Clonezilla and get a 1:1 copy. Depending how you’ve set up partitioning, you could also use
sgdiskto set up the proper partitions andzfs send/recvfor the new data portion of the drive and install a boot loader. That’s probably the way I’d go in this instance.I get the part that the cloning software does not care for the underlying OS. My worry is the fact that I'll run the cloning software/command from a live USB which will not be able to detect the zfs mirror on my backup drive on its own and thus break the zfs mirror with bad consequences for the existing data. I could not find any commands to make the live USB OS discover and respect the existing zfs configuration.