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Subject: [Bug 191748] New: Installing FreeBSD-10-STABLE pmbr makes disk
 unbootable
Date: Tue, 08 Jul 2014 20:29:48 +0000
X-Bugzilla-Reason: AssignedTo
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: Base System
X-Bugzilla-Component: bin
X-Bugzilla-Version: 10.0-STABLE
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: Affects Many People
X-Bugzilla-Who: berend@pobox.com
X-Bugzilla-Status: Needs Triage
X-Bugzilla-Priority: Normal
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=191748

            Bug ID: 191748
           Summary: Installing FreeBSD-10-STABLE pmbr makes disk
                    unbootable
           Product: Base System
           Version: 10.0-STABLE
          Hardware: Any
                OS: Any
            Status: Needs Triage
          Severity: Affects Many People
          Priority: Normal
         Component: bin
          Assignee: freebsd-bugs@FreeBSD.org
          Reporter: berend@pobox.com

I had a perfectly booting system. When trying to resolve some problem getting
another disk to boot, by doing "boot0cfg ada0", my system did no longer boot.

I tried to fix this by doing:

    gpart bootcode -b /boot/pmbr ada0

but that did not work.

I finally installed the pmbr from FreeBSD 9.1 and that gave me a booting system
again.

More people have reported problems booting with FreeBSD 10, and they seem very
similar to what I have here: https://forums.freebsd.org/viewtopic.php?t=46014

Environment:
System: FreeBSD bmach.nederware.nl 10.0-STABLE FreeBSD 10.0-STABLE #29 r268266:
Sat Jul 5 10:51:50 NZST 2014
root@bmach.nederware.nl:/usr/obj/usr/src/10-STABLE/sys/BMACH amd64

How-To-Repeat:
See description.

Fix:
Install FreeBSD 9.1. pmbr.

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