On Thu, Jan 05, 2012 at 11:20:37AM +0200, Gleb Natapov wrote: > On Thu, Jan 05, 2012 at 10:09:44AM +0100, Gerhard Wiesinger wrote: > > But as far as I remember therefore the option ROM registers through > > BIOS for INT 19h booting. So Seabios should know it that this is a > > harddisk. > It registers BEV. Otherwise you wouldn't be able to boot at all. In fact > it registers multiple BEVs (one for each attached scsi device). But BIOS > knows nothing about the device behind the BEV. It just jumps to BEV > address to boot from it when INT 19h is called. There may be scsi cdrom > there or even tape.
Gerhard's option rom is actually registering a BCV, and SeaBIOS can know that is likely a hard drive. So, I think Gerhard has a point. SeaBIOS could probably fall back to the harddrive priority if it finds a BCV without an explicit bootindex priority. Gerhard - does the patch below improve things for you? -Kevin --- a/src/boot.c +++ b/src/boot.c @@ -326,7 +326,7 @@ boot_add_bev(u16 seg, u16 bev, u16 desc, int prio) void boot_add_bcv(u16 seg, u16 ip, u16 desc, int prio) { - bootentry_add(IPL_TYPE_BCV, defPrio(prio, DEFAULT_PRIO) + bootentry_add(IPL_TYPE_BCV, defPrio(prio, DefaultHDPrio) , SEGOFF(seg, ip).segoff , desc ? MAKE_FLATPTR(seg, desc) : "Legacy option rom"); }