nextboot(8) on FreeBSD
The text a09a27461a5e, as FreeBSD 15.0-RELEASE, FreeBSD 14.5-RELEASE, FreeBSD 14.4-RELEASE, FreeBSD 14.3-RELEASE, FreeBSD 14.2-RELEASE, FreeBSD 14.1-RELEASE, FreeBSD 14.0-RELEASE, FreeBSD 13.5-RELEASE, FreeBSD 13.4-RELEASE, FreeBSD 13.3-RELEASE shipped it.
specify an alternate kernel and boot flags for the next reboot
Flags it lists
-
-D -
-a -
-e -
-f -
-k -
-o