this post was submitted on 18 Aug 2024
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So, I'm trying to clone an SSD to an NVME drive and I'm bumping into this "dev-disk-by" error when I boot from the NVME (the SSD is unplugged).

I can't find anyone talking about this in this context. It seems like what I've done here should be fine and should work, but there's clearly something I and the arch wiki are missing.

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[–] [email protected] 3 points 2 months ago (3 children)

Clonezilla just worked. The fstab is unmodified/identical to what dd gave me.

I really have no idea what clonezilla did differently. Its output was so fast... But yeah, it just worked with that. So I guess I'll take it.

Absolutely baffling.

[–] [email protected] 4 points 2 months ago* (last edited 2 months ago) (1 children)

Clonezilla runs lots of tasks after (and before) dd that are in the log file(s) on the live environment before you reboot. I haven't used it in a while, but I'm confident that one of the tasks is updating grub

[–] [email protected] 1 points 2 months ago

I did update grub via a chroot as one of my troubleshooting steps... So I don't think that was it either. I actually recall it saying something about skipping updating grub (because it was a GPT system without some special flag set I think).

I remember seeing it do something to the EFI stuff explicitly and I'm wondering if maybe that's where it did something I didn't.

[–] [email protected] 3 points 2 months ago (1 children)

Aight, well, glad to hear it.

[–] [email protected] 1 points 2 months ago

Thanks and thanks for the effort you put in.

[–] [email protected] 1 points 2 months ago (1 children)

Now that you know the safe way out, break it again with dd and figure out the difference 😁

Moving from SATA to NVMe is a classic way to break the boot process. Most of the time, you want to boot a recovery mode from USB, mount your existing root and efi partitions, and then just reinstall grub.

If you've managed to recover this way only once, you feel a lot more comfortable in the future if shit goes wrong.

[–] [email protected] 1 points 2 months ago* (last edited 2 months ago) (1 children)

Most of the time, you want to boot a recovery mode from USB, mount your existing root and efi partitions, and then just reinstall grub.

I did do that FWIW, but it didn't do it/it wasn't enough/it still didn't work.

If this was a toy system and/or I was back in college and feeling adventurous, I would definitely be more inclined to try and figure out what happened. As it stands, I just want the thing to work 😅

[–] [email protected] 2 points 2 months ago

Valid. Glad you're back on track