Aram Hăvărneanu 2021 4 15 2022 5 18 2025 8 27 2026 4 28 https://xw.is/001J/ 001J /001J/ FreeBSD › Upgrade FreeBSD 14.3 to 15.0 Aram Hăvărneanu 2021 4 15 2022 5 18 2025 8 27 2026 4 28 Introduction Everything on this page needs to be done as root unless otherwise specified, so su(1) to root. su - Aram Hăvărneanu 2021 4 15 2022 5 18 2025 8 27 2026 4 28 Upgrade the base system We will do the upgrade offline (in a new boot environment) so first create the BE using bectl(8) and mount it. bectl create 15.0-RELEASE bectl mount 15.0-RELEASE /mnt Then run freebsd-update(8): freebsd-update -b /mnt -d /mnt/var/db/freebsd-update -r 15.0-RELEASE upgrade freebsd-update -b /mnt -d /mnt/var/db/freebsd-update install freebsd-update -b /mnt -d /mnt/var/db/freebsd-update install freebsd-update -b /mnt -d /mnt/var/db/freebsd-update install Yes, you really need to run it that many times. Aram Hăvărneanu 2021 4 15 2022 5 18 2025 8 27 2026 4 28 Upgrade the bootloader You need to update the bootloader, otherwise the system will stop booting eventually (but not immediately). I think this is only necessary after zpool upgrade, and zpool upgrade used to warn us about this, but apparently not anymore? (Maybe it's related to the switch to OpenZFS — unclear.) Presumably you can do this after booting into the new system, but before zpool upgrade. Aram Hăvărneanu 2021 4 15 2022 5 18 2025 8 27 2026 4 28 BIOS First, determine your boot devices. z800:aram$ zpool status zroot pool: zroot state: ONLINE scan: scrub repaired 0B in 00:01:46 with 0 errors on Mon Feb 5 17:48:15 2018 config: NAME STATE READ WRITE CKSUM zroot ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 gpt/zfs0 ONLINE 0 0 0 gpt/zfs1 ONLINE 0 0 0 errors: No known data errors Look for the GEOM devices in the geom(8) output. z800:aram$ geom -t ... da0 PART da0p3 da0p3 DEV da0p3 LABEL gpt/zfs0 gpt/zfs0 DEV zfs::vdev ZFS::VDEV ... da2 PART da2p3 da2p3 DEV da2p3 LABEL gpt/zfs1 gpt/zfs1 DEV zfs::vdev ZFS::VDEV ... In our case, we need to install the new bootloader on da0 and da2 using gpart(8). gpart bootcode -b /mnt/boot/pmbr -p /mnt/boot/gptzfsboot -i 1 da0 gpart bootcode -b /mnt/boot/pmbr -p /mnt/boot/gptzfsboot -i 1 da2 Of course, if you already booted into the new system, these become: gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 1 da0 gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 1 da2 Aram Hăvărneanu 2021 4 15 2022 5 18 2025 8 27 2026 4 28 EFI TODO. Aram Hăvărneanu 2021 4 15 2022 5 18 2025 8 27 2026 4 28 Upgrade the packages It is unclear why we need devfs, but we need it. mount -t devfs devfs /mnt/dev/ pkg -c /mnt update pkg -c /mnt upgrade umount /mnt/dev/ Aram Hăvărneanu 2021 4 15 2022 5 18 2025 8 27 2026 4 28 Activate the new boot environment Activate the new boot environment, then reboot. bectl umount 15.0-RELEASE bectl activate 15.0-RELEASE If it doesn't work, you can revert to another BE in the bootloader. References Context Backlinks Related https://xw.is/freebsd/ freebsd /freebsd/ FreeBSD Software https://www.freebsd.org Free-software Unix-like operating system descended from the Berkeley Software Distribution (BSD). https://xw.is/freebsd-be/ freebsd-be /freebsd-be/ FreeBSD Boot Environments Documentation https://wiki.freebsd.org/BootEnvironments Bootable ZFS datasets. https://xw.is/geom/ geom /geom/ GEOM: Modular Disk Transformation Framework Documentation https://docs.freebsd.org/en/books/handbook/geom/ Modular disk I/O request transformation framework. https://xw.is/bectl.8 bectl.8 /bectl.8 bectl(8) Manual https://man.freebsd.org/cgi/man.cgi?query=bectl&sektion=8 Manage ZFS boot enviroments on FreeBSD. https://xw.is/freebsd-update.8 freebsd-update.8 /freebsd-update.8 freebsd-update(8) Manual https://man.freebsd.org/cgi/man.cgi?query=freebsd-update&sektion=8 Fetch and install binary updates to FreeBSD. https://xw.is/geom.8 geom.8 /geom.8 geom(8) Manual https://man.freebsd.org/cgi/man.cgi?query=geom&sektion=8 Universal control utility for GEOM classes. https://xw.is/gpart.8 gpart.8 /gpart.8 gpart(8) Manual https://man.freebsd.org/cgi/man.cgi?query=gpart&sektion=8 Control utility for the disk partitioning GEOM class. Contributions