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Booting NixOS with a missing drive (feddit.org)

submitted 4 weeks ago by [email protected] to c/[email protected]

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In very short, I have a NixOS install with an /etc/fstab using UUIDs. However, my bulk drive died. I have backups, the data is not the problem.

But I can't boot NixOS without the drive. It throws me into an emergency shell, in which I can't edit /etc/fstab (read-only FS) and since I'm in emergeny mode, nixos rebuild doesn't work either (seems to be mostly a network issue).

So, what's the best, non-reinstalling way to fix that?

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[–] [email protected] 1 points 4 weeks ago

I can't speak for whether those existing bad sectors can or can't be recovered, but yeah, when there's bad connections between the controller board and the drive, then the actuator heads will have a less than stable current going to them and won't be able to reliably align over the tracks.

It still might be enough to get you back up and running long enough to change your fstab file to make appropriate changes to remove the failing drive from the configuration.