I investigated this issue on my machine and somehow it seems that it can be worked around (at least it worked for me the workaround suppressed the error so far) using a hidden BIOS setting by changing the SATA mode from "Compatible" to "Enhanced". I posted some details on how to activate it at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/340014/comments/7
Disclaimer: This is an undocumented setting, use it at your own risk!
Do not enable AHCI, this will prevent GRUB from loading.
I investigated this issue on my machine and somehow it seems that it can be worked around (at least it worked for me the workaround suppressed the error so far) using a hidden BIOS setting by changing the SATA mode from "Compatible" to "Enhanced". I posted some details on how to activate it at: https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/340014/ comments/ 7
Disclaimer: This is an undocumented setting, use it at your own risk!
Do not enable AHCI, this will prevent GRUB from loading.