Known issues

No software reboot on a real 68060. reboot and shutdown -i6 leave the screen black: the Z3660 cannot reset the CPU. Use shutdown -i0 -g0 -y, wait 10 seconds after the halt message, switch off and on.
Switch off only after a clean shutdown. The Z3660 keeps your disks as files on its SD card, and the card may still be writing for a few seconds after the halt.
Black screen or no disk activity at power-on: switch off for 20 seconds, then on. This also covers the restart after a file-system check following an unclean shutdown.
The Z3660 restarts itself during Kickstart's disk scan about one boot in six; the boot then continues normally.
If the Z3660 console shows a core0 DataAbort followed by a firmware restart without a power cycle, switch off and on before installing: seen once on the acceptance bench, where the install that followed corrupted one block of the install disk.
Upgrade APKG with apkg upgrade apkg, not /usr/sbin/pkgadd: the system's own pkgadd -n cannot install a package with install scripts ("suspended (interaction required)").
A 68060 running the July 2026 package engine (APKGENG 1.12.0) cannot upgrade it by itself: see the recovery.
No crash dump. The console message is the only record of a panic.
CD install: interactive only. Only the CD filesystem may touch the CD unit.
A K1 install source disk changes when it is used. The installer boots it read-write, so after an install its sha256 no longer matches the card's list. That is expected, not damage.
Disks: stay below 1024 MB; the largest tested root is a 1000 MB disk (959 MiB root).
Every K1 card has the same MAC address (02:00:00:00:00:01); change it per machine.
Classic kit: tested in emulation only; does not run in the Z3660's 68030 mode (1.1).
Amiberry before 8.3.0: do not use. It boots, then silently corrupts data under paging.
68060: cas2 and a misaligned cas still stop a program; the other integer instructions the 68060 lacks are emulated.
Installed from media older than 2026-10-03? The first-boot files are world-writable, a local root hole. As root, once:
chmod 700 /var/adm/firstboot chmod 600 /var/adm/firstboot/firstboot.conf /var/adm/firstboot/DIALOG-DONE rm -f /var/adm/firstboot/root.shadow /var/adm/firstboot/PENDING chmod 755 /opt/amix /opt/amix/bin; chmod 444 /etc/inet/hosts

Recovery: APKGENG 1.12.0 on a 68060

As root:

/usr/apkg/bin/apkg update cd /tmp if [ -d /var/sadm/pkg/APKGENG ]; then mv /var/sadm/pkg/APKGENG /var/sadm/pkg/.save.APKGENG; fi P=`/usr/apkg/bin/apkg download apkgeng | tail -1` sed 's/^instance=.*/instance=overwrite/' /var/apkg/admin > /tmp/admin cp /var/sadm/install/contents /var/sadm/install/contents.bak /usr/apkg/bin/contents-fsck -r -s /var/sadm/install/contents cp /var/sadm/install/contents.fixed /var/sadm/install/contents /usr/sbin/pkgadd -n -a /tmp/admin -d $P APKGENG rm -rf /var/sadm/pkg/.save.APKGENG /usr/apkg/bin/apkg info apkgeng

The last line must say Installed: yes, version 1.12.3. If pkgadd fails: mv /var/sadm/pkg/.save.APKGENG /var/sadm/pkg/APKGENG.

Classic system from pre-release media: swap

Before upgrading, add the rest of the swap partition, as root: /usr/sbin/swap -a /dev/dsk/c6d0s2 20480 <blocks>, with <blocks> the partition's length in 512-byte blocks minus 20480 (16384 for the default 18 MB). The 1.0 media do this at every boot.

Not listed here? Report it in jusii/amigaux; see Support.