After all these years of trouble-free upgrades, I ran into my first problem. I used sysupgrade to go from 6.6/amd64 to 6.7. The upgrade process was successful, but after bsd.upgrade did its thing and rebooted the system, the new kernel would not boot.
It got to the "boot>" prompt, started loading the kernel, but then the system would reboot right after showing "booting hd0a:bsd: 129570000+2753552..." line. I tried booting bsd.sp, bsd.rd, and bsd.booted with identical results. Was able to boot from cd67.iso. Tried downloading the original kernel, but that didn't work either. Re-running the upgrade didn't help. Finally, decided to upgrade to 6.8, so did that from cd68.iso, which fixed the problem. I also replaced bootx64.efi file on the EFI partition after this upgrade, but I'm not actually sure if it was different or not. Obviously curious as to what the issue may have been, but mostly wondering whether any upgrade steps may have been missed as a result of never fully booting the 6.7 OS and running post-upgrade steps there. Thanks!
