On Wed, 22 Oct 2025 19:51:44 +0200 "Piotr K. Isajew" <[email protected]> wrote: > I now dediced to "revive" it a bit by swapping the drive with > 500GB PCIe SSD from another macbook (pro) of mine. After the > swap, macOS runs without problems on the Air, but 7.7 and 7.8 > installers both hang in same place: > > scsibus0 at ahci0: 32 targets > sd0 at scsibus0 targ 0 lun 0: <ATA, APPLE SSD SM0512, BXZ1> > naa.500243890.. sd0: 477102MB, 512 bytes/sector, 977105060 sectors, > thin >
This is the same ACPI timeout bug in the Apple firmware that was discussed earlier. You can either build a custom installer for yourself with acpi.c patched, or wait out the 10.000 second (I think) timeout, after which the system will indeed boot. After that you need to patch the kernel. I uploaded a patch for 7.8 and 7.7 to my little wiki: https://openbsdonapple.wiki/doku.php?id=misc:acpi_patch Please have a look for instructions on patching. Would love to hear your feedback if you managed to get it working. I am also in the process of updating my custom sysupgrade script which I will link on the above wiki once it's finished.
