boot problem after freebsd-update from 9.1-RC2 to 9.1-RC3

[Gary Aitken]

On 11/20/12 13:34, freebsd at johnea.net wrote:
> 
> Hello,
> 
> I recently installed a 9.1-RC2 system using gmirror with MBR, and swap in first bsdlabel.
> 
> orsbackup# gpart show
> =>        63  3907029104  mirror/gm0  MBR  (1.8T)
>            63          63              - free -  (31k)
>           126  3907028979           1  freebsd  [active]  (1.8T)
>    3907029105          62              - free -  (31k)
> 
> =>         0  3907028979  mirror/gm0s1  BSD  (1.8T)
>             0           2                - free -  (1.0k)
>             2    16777216             1  freebsd-swap  (8.0G)
>      16777218  3890251760             2  freebsd-ufs  (1.8T)
>    3907028978           1                - free -  (512B)
> 
> The drive was setup with the following commands:
> 
> orsbackup# gpart create -s MBR mirror/gm0
> mirror/gm0 created
> orsbackup# gpart add -t freebsd -a 4k mirror/gm0
> # ignored "mirror/gm0s1 added, but partition is not aligned on 4096 bytes"
> # create the bsdlabel partitions in slice 1 (s1)
> orsbackup# gpart create -s BSD mirror/gm0s1
> orsbackup# gpart add -t freebsd-swap -a 4k -s 8g mirror/gm0s1
> orsbackup# gpart add -t freebsd-ufs -a 4k mirror/gm0s1
> # put bootcode on the MBR and mark the first slice active
> orsbackup# gpart bootcode -b /boot/mbr mirror/gm0
> orsbackup# gpart set -a active -i 1 mirror/gm0
> # put bootcode on the bsdlabel
> orsbackup# gpart bootcode -b /boot/boot mirror/gm0s1
> 
> 
> The system rebooted several times without issue. This system is a testbed for 9.1 and is not yet deployed as a production server.
> 
> I thought I'd update to 9.1-RC3, so I ran:
> 
> freebsd-update upgrade -r 9.1-RC3
> freebsd-update install
> reboot
> 
> The system won't boot and complains about:
> 
> "Not UFS"  "No ada0" "No boot"
> 
> Before I charge ahead with reissuing the gpart bootcode commands I thought I'd:
> 
> a) make others aware there may be issues in freebsd-update with the 9.1 release candidates
> 
> b) ask about the best way to resolve this bootloader issue.
> 
> Thanks you for any pointers in resolving this bootloader issue!
> 
> johnea

Not sure, but this might apply:

 The freebsd-update tool is used to fetch, install, and rollback binary
     updates to the FreeBSD base system.  Note that updates are only available
     if they are being built for the FreeBSD release and architecture being
     used; in particular, the FreeBSD Security Team only builds updates for
     releases shipped in binary form by the FreeBSD Release Engineering Team,
     e.g., FreeBSD 7.3-RELEASE and FreeBSD 8.0-RELEASE, but not FreeBSD
     6.3-STABLE or FreeBSD 9.0-CURRENT.

Seems like it isn't supposed to work for 9.1-RC2