Re: [Qemu-devel] Cannot boot my VM image after switching to ahci.

[Alex Davis]

John Baboval Wrote:
>I assume Windows 7 or newer?
>
>In order to speed boot time, Windows will remove the AHCI driver from the 
>critical driver database when you boot with no AHCI controller on the bus. If 
>you later want >to switch to AHCI mode, you have to boot with IDE again, and 
>re-add the AHCI driver, reboot, and then reboot again with QEMU AHCI enabled.
>
>To do this on Windows 7, set 
>HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\msahci\Start to 0 To do 
>this on Windows 8, delete the entire >StartOverride key under 
>HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\storahci
>
>Good luck.

John,

Yes, I'm running Windows 7.  Your solution worked.

Thanks.