Create Boot Env and mount it ``` bectl create 15.0 mkdir /mnt/upgrade bectl mount 15.0 /mnt/upgrade ``` Change pkg configuration `/mnt/upgrade/usr/local/etc/pkg/repos/FreeBSD-base.conf` to local repo ``` FreeBSD-base: { url: "http://local.ip/${ABI}/15.0", enabled: yes } ``` and comment out FreeBSD-base from /mnt/upgrade/etc/pkg/FreeBSD.conf Install FreeBSD-pkg-bootstrap, as mentioned in the [release notes](https://www.freebsd.org/releases/15.0R/relnotes/) ``` env ABI=FreeBSD:15:amd64 IGNORE_OSVERSION=yes pkg -c /mnt/upgrade/ install -r FreeBSD-base FreeBSD-pkg-bootstrap ``` Then upgrade the base packages ``` env ABI=FreeBSD:15:amd64 IGNORE_OSVERSION=yes pkg -c /mnt/upgrade/ upgrade -r FreeBSD-base ``` Check, if FreeBSD-set-base is installed: ``` env ABI=FreeBSD:15:amd64 IGNORE_OSVERSION=yes pkg -c /mnt/upgrade/ install -r FreeBSD-base FreeBSD-set-base ``` upgrade all other packages ``` env ABI=FreeBSD:15:amd64 IGNORE_OSVERSION=yes pkg -c /mnt/upgrade/ upgrade ``` Temporarily activate boot env and reboot ``` bectl activate -t 15.0 shutdown -r now ```