I'm trying to install FreeBSD on my PowerBook G3 lombard but the installation cd won't boot. Specifically, I've written the "FreeBSD-13.2-RELEASE-powerpc-disc1.iso" file. The SHA512 checksum matches. To boot the cd, I enter openfirmware by holding cmd+option+o+f and once in openfirmware, I enter the "boot menu" with the command "multi-boot". Once in multi-boot I select the cd and hit the "start up" button. When booting the cd, the drive sounds funny (speeding up and slowing down repeatedly) if that has anything to do with it. Eventually, the boot process seems to get stuck on "random: unblocking device." I can boot from other installation disks like debian 8.10 and fedora 12 but so far not FreeBSD. Why is this happening and what am I doing wrong? Do I need an older version of FreeBSD like freebsd 12? Is it something completely different?