Gerd Hoffmann <kra...@redhat.com> writes: > Hi, > >> What I'd like to avoid is casual users setting up new guests with our >> shiny new q35 board getting their IDE drives connected to some slow, old >> controller just because they haven't discovered that if=ide doesn't cut >> it anymore, and they need to use if=ahci now. > > That will not work. ahci has no such thing as master/slave. Each ahci > port (modeled as ide bus in qemu for ata emulation code reuse reasons) > accepts one drive only. > > Thus -drive if=ide,bus=x,unit=1,file=... will not work with ahci.
I see. To be precise: the part that doesn't work is unit=N with N>0.