Booting from a DVD (I don’t have any spare CDs; the drive is in the docking station) and I get an error like this. Turning the switch for AHCI/IDE emulation only affects what devices are enumerated by this driver.
If I go into safe mode and turn off IDE DMA, it limps further, gets to here and boots a bit further into a completely hosed framebuffer.
The version was the nightly amd64 anyboot for April 19th.