hi i have not touched to MAC till now . the other day i got macpro(mid 2006) under $80 at auction .
manjarolinux(64bit)’s grub boots openbsd . the result is ---------------- 1) $ uname -ar OpenBSD mac.my.domain 6.2 GENERIC.MP#134 amd64 2) top load averages: 0.10, 0.13, 0.06 mac.my.domain 17:08:07 33 processes: 32 idle, 1 on processor up 0:11 CPU0 states: 0.6% user, 0.0% nice, 0.3% system, 0.1% interrupt, 99.1% idle CPU1 states: 0.3% user, 0.0% nice, 0.4% system, 0.0% interrupt, 99.3% idle CPU2 states: 0.1% user, 0.0% nice, 0.2% system, 0.0% interrupt, 99.7% id CPU3 states: 0.0% user, 0.0% nice, 0.1% system, 0.0% interrupt, 99.8% idle Memory: Real: 23M/291M act/tot Free: 683M Cache: 194M Swap: 0K/5120M 3) the problem is that i can not reproduce tripleboot state (manjarolinux, windows10 and openbsd) . any way the previous openbsd is 6.1 . i use legacy PC and CD(install62.fs ) and install OpenBSD area . [ don’t touch msdos aea (wd0i)] then openbsd 6.2 can be booted by manjarolinux’s grub . 4) failure cd(install62.iso) can boot macpro and end all the installation process include [cp /mnt/user/mdec/BOOT* /mnt2/efi/boot] . but booting this hard disk , [entry point 0xf000158 ] error occurs . 5)failure i could not install openbsd to macpro by install62.fs burned USB memory (power botton +c did not go well ). i want to know the right way to install openbsd into macpro . i hear macpro has many cores , 12 core --- regards

