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#1 2021-04-16 16:59:17

xsimplex
Member
Registered: 2021-04-16
Posts: 2

[SOLVED] Hard drive undetectable after hard reboot

Hey,

I'm currently facing an issue on my Laptop I am completely stumped on.
Yesterday the laptop hung during normal use, where I was unable to exit out of some GNOME window anymore and hard rebooted the laptop. When trying to restart it, I got the following message:

Starting version 248-2-arch
ERROR: device 'UUID=<uuid>' not found. Skipping fsck.
mount: /new_root: can't find UUID=<uuid>.
You are now being dropped into an emergency shell.
sh: can't access tty: job control turned off.

I then tried to access the system via live USB to see whether I could see the hard drive over that and perhaps chroot into it and fix the issue, but the drive won't even show up at all in fdisk, lsblk, lshw and the like.
The drive is still visible in the BIOS, though, and passes Drive Self Tests, which I can do while in the BIOS.
I am not very well versed in the inner workings of hard drives, mounting and stuff, so I have no idea what to do here. Any help would be very much appreciated!

Last edited by xsimplex (2021-04-17 08:41:46)

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#2 2021-04-17 08:41:20

xsimplex
Member
Registered: 2021-04-16
Posts: 2

Re: [SOLVED] Hard drive undetectable after hard reboot

After extensively combing through dmesg I found the issue: For some reason, the setting for all drives to be in RAID or AHCI mode was switched to RAID. Switching it back to AHCI fixed the issue, but now I am wondering how on earth a hard reset could have triggered a flip on a Bios setting...

Last edited by xsimplex (2021-04-17 08:42:06)

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