[Bug 208736] freebsd-update does not work when /var/empty is a RO filesystem

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Tue Apr 12 05:29:55 UTC 2016


            Bug ID: 208736
           Summary: freebsd-update does not work when /var/empty is a RO
           Product: Base System
           Version: 10.3-BETA2
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Many People
          Priority: ---
         Component: bin
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: alan at anarchycorp.com
                CC: freebsd-amd64 at FreeBSD.org
                CC: freebsd-amd64 at FreeBSD.org

Making /var/empty its own read-only filesystem is common on systems with root
on ZFS, and is the suggested configuration in the FreeBSD wiki
(https://wiki.freebsd.org/RootOnZFS).  freebsd-update should probably detect
such configurations when running with the "upgrade" option, and either abort
gracefully with a warning or ignore the steps it would normally take on
/var/empty.  Currently it stops with very little diagnostic output.

I've confirmed this on several amd64 systems configured with root on ZFS while
attempting to upgrade via 'freebsd-update upgrade -r 10.3-RELEASE".

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