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Date:      Fri, 04 Oct 2013 11:22:30 -0500
From:      dweimer <dweimer@dweimer.net>
To:        freebsd-questions@freebsd.org
Subject:   Re: 9.1 - 9.2 upgrade
Message-ID:  <1bdf3856902efd917ab9d489c8b6e751@dweimer.net>
In-Reply-To: <62A8B684-0328-42F5-B9E4-D5DF80563D4D@lafn.org>
References:  <B5D4B829-3B73-4E5F-BA69-6DFA0F129975@lafn.org> <BCEB7B13-2084-4D4E-9F89-19F29EFBCC54@lafn.org> <62A8B684-0328-42F5-B9E4-D5DF80563D4D@lafn.org>

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On 10/04/2013 1:36 am, Doug Hardie wrote:
> On 3 October 2013, at 11:48, Doug Hardie <bc979@lafn.org> wrote:
> 
>> 
>> On 3 October 2013, at 10:49, Doug Hardie <bc979@lafn.org> wrote:
>> 
>>> I just did an upgrade using freebsd-update to 9.2.  This system uses 
>>> a custom kernel so I am rebuilding everything after the update 
>>> completed.  However, I noticed that /usr/src/UPDATING has not been 
>>> updated.  The first entry still says:  9.1-RELEASE.  Is this correct?
>> 
>> Well, it just got worse - The last reboot now fails:  I am using a 
>> remote console and it shows:
>> 
>> --> Press a key on the console to reboot <--
>> Rebooting...
>> Consoles: internal video/keyboard  serial port
>> BIOS drive A: is disk0
>> BIOS drive C: is disk1
>> BIOS 639kB/2087360kB available memory
>> 
>> FreeBSD/x86 bootstrap loader, Revision 1.1
>> (doug@zool.lafn.org, Thu Oct  3 04:23:13 PDT 2013)
>> Can't work out which disk we are booting from.
>> Guessed BIOS device 0xffffffff not found by probes, defaulting to 
>> disk0:
>> 
>> panic: free: guard1 fail @ 0x7f481ed0 from 
>> /usr/src/sys/boot/i386/loader/../../common/module.c:1004
>> --> Press a key on the console to reboot <--
>> 
>> 
>> I can enter a string as it doesn't try to reboot again till the return 
>> is entered.  I've tried b disk1, but it still only tries disk0.  The 
>> system rebooted fine after the reboot after make kernel.  Mergemaster 
>> didn't seem to affect anything dealing with boot.  Don't know what 
>> make delete-old does but the descriptions lead me to not believe it 
>> could cause this.  This system is on the other side of LA from me so 
>> its a major trip timewise.  Any ideas how this can be recovered 
>> remotely?
> 
> Booting off the live CD didn't find anything obviously wrong.  I
> replaced the kernel with the old one and still the same error.  I am
> having the drive mailed to me and will work with it here.  However, it
> appears a new install is going to be required.  The old sysinstall had
> the capability to skip over the formatting of the disk by just
> entering quit.  It would then just replace the system components and
> leave everything else alone.  I don't see any obvious way to do the
> same thing with bsdinstall.  Is there a way to do that.  I don't want
> to have to completely rebuild the drive, but just replace the system.
> 
> 
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Just want to clarify the steps that started this

if I read everything right:

Step 1:  freebsd-update from 9.1 to 9.2
Step 2:  compile from source ?  Was this world, or just the custom 
kernel??
Step 3:  make delete-old
Step 4:  mergemaster
Step 5:  reboot
oops, something went wrong..

If my suspicions are correct, the source was still 9.1 patch 7,  but the 
system was running 9.2 from the binary update.  This may have caused the 
make delete-old to delete things it shouldn't have

The very first thing I would do is bring the disk up in another system 
and make a backup copy of the data.

I have never tried this process, I am basically just taking the steps I 
use for updating a zfs system using boot environments, and applying them 
in order to build a new kernel and world to an alternate directory, as a 
method of recovering the system.

The next step I would take is to then mount the file systems in an 
alternate location, /mnt for example

make MAKEOBJDIRPREFIX /mnt/usr/obj
make DESTDIR /mnt
cd /mnt/usr/src
rm -r * .svn
rm -r /usr/obj/*
svn co https://svn0.us-west.freebsd.org/base/releng/9.2
make buildwolrd
make buildkernel
make installkernel
make installworld
make -DBATCH_DELETE_OLD_FILES delete-old
make -DBATCH_DELETE_OLD_FILES delete-old-libs
mergemaster -Ui /mnt/usr/src -D /mnt

With some luck the file system will now contain a boot-able FreeBSD 
install, that will still have all the settings in place, except it will 
be the generic kernel.  You should then just be able to build and 
install the custom kernel, from the booted system as you normally would.

-- 
Thanks,
    Dean E. Weimer
    http://www.dweimer.net/



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