I had an update that went seriously sideways, so I decided to just roll back to my root pool snapshot from before I began the update. I figured I should boot into a live FreeBSD from a memory stick, but didn't have the right stick handy, so I took a chance on dropping down into single user mode. I had followed the first reasonable looking HOWTO I found before setting this test box up, so I had made many datasets for the root file system.
I didn't realize rollback doesn't do its own recursion. Everything went fine rolling back by hand until I hit /var. This immediately core dumped. I rebooted back into single user mode, finished the rollback of service and tmp and the system appears fine. I didn't use
This was during the userland side of the half-upgrade from 9.0 to 9.1 on AMD64.
Code:
zunk/root
zunk/tmp
zunk/usr
zunk/usr/home
zunk/usr/jails
zunk/usr/obj
zunk/usr/ports
zunk/usr/ports/distfiles
zunk/usr/ports/packages
zunk/var
zunk/var/log
zunk/var/service
zunk/var/tmp
I didn't realize rollback doesn't do its own recursion. Everything went fine rolling back by hand until I hit /var. This immediately core dumped. I rebooted back into single user mode, finished the rollback of service and tmp and the system appears fine. I didn't use
-f
. This was during the userland side of the half-upgrade from 9.0 to 9.1 on AMD64.