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[Question] Using DD to make a backup of an OS drive?

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brownmustardminion@lemmy.ml
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Would this work or would I have problems:

Using dd command to backup an entire SSD containing dual boot Windows/Ubuntu partitions into an .iso file, with the intent to then dd that iso back onto the same size SSD in the case of a drive failure?

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Bitrot@lemmy.sdf.org
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Yes it can, but it’s up to your BIOS to be able to boot it. UEFI might work better, you still might need to manually add the boot entry to the efivars using efibootmgr. Many distributions also have documentation for a rescue boot and reinstalling the bootloader config.

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