u/DigitalTorgue

I'm first time at Arch. I installed the system on Btrfs successfully, but every boot fails: GRUB just doesn't see the filesystem where Arch is installed. After a long troubleshooting process, it turned out that my HDD just doesn't start spinning up, so I have to boot from a LiveCD and run `mount /dev/sdb /mnt && reboot` to make the HDD spin up before starting the system. After that, GRUB can see the filesystem successfully.

I tried running `mkinitcpio -P` and regenerating the GRUB config, but it had no effect. Is it possible to eliminate this problem?

Grub error message