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Wireless wifi is not working after a chroot rescue on Arch Linux. (sh.itjust.works)

submitted 8 months ago by 257m@sh.itjust.works to c/linux@sh.itjust.works

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So basically I stupidly tried to update while my thinkpad had low battery and it powered off halfway through the update. The system wouldn't boot because it was complaining that vm-linuz/linux was not found so I performed a chroot-rescue and got it to boot again. I must have messed something up during the process because now the device wlan0 is not showing up in iwctl device list. How can I fix or diagnose this issue? (I am using btrfs if that helps). Has anyone had a similar situation and can lend a hand?

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[–] Novi@sh.itjust.works 6 points 7 months ago* (last edited 7 months ago) (1 children)

Rebuild all dkms and kmod drivers, specifically your wireless driver. iferror, reinstall your kernel and firmware (if using firmware) again and allow mkinitcpio to finish and update grub/systemd-boot entries.

edit: typo

[–] Novi@sh.itjust.works 5 points 7 months ago* (last edited 7 months ago)

Should all the above fail the new kernel might have a bug In the driver for your wifi chip, revert to previous kernel.

Edit: you could also try to install another kernel release. (Zen, tkg, etc.)

[–] lurch@sh.itjust.works 5 points 8 months ago

compare old kernel logs if present.

also maybe start making backups like normal people idk

[–] AceSLS@ani.social 2 points 7 months ago* (last edited 7 months ago)

I'd recommend reinstalling all your packages like this (foreign ones shouldn't be neccessary)

[–] 257m@sh.itjust.works 1 points 7 months ago

Alright I solved it by just chrooting in again and deleted and reinstalled linux-firmware.