Score:0

Cannot set SATA operation to AHCI

US flag
user1711889

After the recent BIOS update I'm not able to start Ubuntu. I found the solution to this problem here: Gave up waiting for root device on Ubuntu

Apparently after the update the SATA operation changed from AHCI to RAID on. I tried to switch back to AHCI, but every time I exit the BIOS it resets this option to RAID on.

I thought that maybe motherboard battery is too old, but other option are saved correctly after change.

My laptop is Dell xps 15 9500.

oldfred avatar
cn flag
What version of Ubuntu? My Dell with 11th Gen Intel did not even have ACHI mode. I forgot to go into UEFI to change it and Ubuntu 22.04 still installed but used Intel® VMD driver (same as Windows 11 driver?). System only has NVMe drive. Driver list shows both vmd, ahci. Not sure Ubuntu include vmd driver in kernel with older versions.
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