Re: 8.0-BETA1 bsdlabel broken?

From: John Marshall <john.marshall_at_riverwillow.com.au>
Date: Fri, 10 Jul 2009 21:26:31 +1000
On Fri, 10 Jul 2009, 17:10 +1000, John Marshall wrote:
> On Fri, 10 Jul 2009, 10:14 +0400, Eygene Ryabinkin wrote:
> > Fri, Jul 10, 2009 at 02:21:06PM +1000, John Marshall wrote:
> > > This system was source-upgrade from 7.2-RELEASE to 8.0-BETA1 a couple of
> > > days ago.
> > > 
> > > Today I had a nasty surprise when I fired up bsdlabel to increase the
> > > size of a swap partition.  I booted the system off the 7.2-RELEASE live
> > > filesystem CD and its bsdlabel displayed "normal" labels.  I used the
> > > bsdlabel off the 7.2 livefs CD to edit the label.
> > > 
> > > Here's what I see from 8.0-BETA1.  Scary stuff!
> > > 
> > > rwsrv05# bsdlabel da0s1
> > > # /dev/da0s1:
> > > 8 partitions:
> > > #        size   offset    fstype   [fsize bsize bps/cpg]
> > >   a:  1048576    16065    4.2BSD     2048 16384     8 
> > >   b:  8388608  1064641      swap                    
> > >   c: 33543720    16065    unused        0     0         # "raw" part, don't edit
> > >   e:  4194304  9453249    4.2BSD     2048 16384 28552 
> > >   f: 19912232 13647553    4.2BSD     2048 16384 28552 
> > > partition c: partition extends past end of unit
> > > bsdlabel: partition c doesn't start at 0!
> > > bsdlabel: An incorrect partition c may cause problems for standard system utilities
> > > partition f: partition extends past end of unit
> > 
> > And if you'll invoke 'bsdlabel -A da0s1' then it will whine only about
> > 'c' that doesn't start at 0, but no stuff will be marked as 'extends past
> > end of unit' ;))
> > 
> > The problem is that your 8.x kernel is likely misses GEOM_BSD, so
> > gctl_issue() inside readlabel() of bsdlabel.c will choke on it.
> > Mine problems on one of the hosts were solved by adding GEOM_BSD and
> > recompiling the kernel, though it has the only slice that started at
> > 63 (MBR offset).
> > 
> > > rwsrv05# bsdlabel da0s2
> > > # /dev/da0s2:
> > > 8 partitions:
> > > #        size   offset    fstype   [fsize bsize bps/cpg]
> > >   c: 67103505 33559785    unused        0     0         # "raw" part, don't edit
> > >   d: 33554432 33559785    4.2BSD     2048 16384 28552 
> > >   e: 33549073 67114217    4.2BSD     2048 16384 28552 
> > > partition c: partition extends past end of unit
> > > bsdlabel: partition c doesn't start at 0!
> > > bsdlabel: An incorrect partition c may cause problems for standard system utilities
> > > partition d: partition extends past end of unit
> > > partition e: offset past end of unit
> > > partition e: partition extends past end of unit
> > 
> > This part gets trickier, because partition 'c' reports strange offset.
> > I had reproduced this problem at my notebook, so I'll try to debug it
> > further.
> 
> Thank you Eygene,
> 
> Rebuilding the kernel with the GEOM_BSD option configured didn't make
> any difference for me.  I notice that the offset for the start of the
> slice 2 c partition seems to include the size of the entire s1 slice.

I don't think it's just bsdlabel.  I just noticed this in DMESG...

WARNING: da0s1 expected rawoffset 0, found 16065
WARNING: da0s2 expected rawoffset 0, found 33559785
WARNING: da0s4 expected rawoffset 0, found 100663290
WARNING: da1s1 expected rawoffset 0, found 16065
WARNING: da1s2 expected rawoffset 0, found 33559785
WARNING: da1s4 expected rawoffset 0, found 67103505
WARNING: da0s1a expected rawoffset 0, found 16065
WARNING: da0s2d expected rawoffset 0, found 33559785
WARNING: da0s4d expected rawoffset 0, found 100663290
WARNING: ufsid/44cab1426f1a14df expected rawoffset 0, found 100663290
WARNING: da1s1d expected rawoffset 0, found 16065
WARNING: ufsid/44c73ece4c594eee expected rawoffset 0, found 16065
WARNING: da1s2d expected rawoffset 0, found 33559785
WARNING: ufsid/44ca989c1c946f80 expected rawoffset 0, found 33559785
WARNING: da1s4d expected rawoffset 0, found 67103505
WARNING: ufsid/44caacedfa48b1aa expected rawoffset 0, found 67103505
WARNING: ufsid/454bbd55fb8748ad expected rawoffset 0, found 16065
WARNING: ufsid/44cab13667346452 expected rawoffset 0, found 33559785
WARNING: ufsid/44cab1426f1a14dfd expected rawoffset 0, found 100663290
WARNING: ufsid/44c73ece4c594eeed expected rawoffset 0, found 16065
WARNING: ufsid/44ca989c1c946f80d expected rawoffset 0, found 33559785
WARNING: ufsid/44caacedfa48b1aad expected rawoffset 0, found 67103505
Trying to mount root from ufs:/dev/da0s1a
WARNING: da0s1a expected rawoffset 0, found 16065
WARNING: ufsid/454bbd55fb8748ad expected rawoffset 0, found 16065
WARNING: ad0s1 expected rawoffset 0, found 63
WARNING: da1s1 expected rawoffset 0, found 16065
WARNING: da1s1d expected rawoffset 0, found 16065
WARNING: ufsid/44c73ece4c594eee expected rawoffset 0, found 16065
WARNING: ufsid/44c73ece4c594eeed expected rawoffset 0, found 16065
WARNING: da1s2 expected rawoffset 0, found 33559785
WARNING: da1s2d expected rawoffset 0, found 33559785
WARNING: ufsid/44ca989c1c946f80 expected rawoffset 0, found 33559785
WARNING: ufsid/44ca989c1c946f80d expected rawoffset 0, found 33559785
WARNING: da1s4 expected rawoffset 0, found 67103505
WARNING: da1s4d expected rawoffset 0, found 67103505
WARNING: da0s2 expected rawoffset 0, found 33559785
WARNING: da0s2d expected rawoffset 0, found 33559785
WARNING: ufsid/44caacedfa48b1aa expected rawoffset 0, found 67103505
WARNING: ufsid/44cab13667346452 expected rawoffset 0, found 33559785
WARNING: ufsid/44caacedfa48b1aad expected rawoffset 0, found 67103505
WARNING: da0s2 expected rawoffset 0, found 33559785
WARNING: da0s4 expected rawoffset 0, found 100663290
WARNING: da0s4d expected rawoffset 0, found 100663290
WARNING: ufsid/44cab1426f1a14df expected rawoffset 0, found 100663290
WARNING: ufsid/44cab1426f1a14dfd expected rawoffset 0, found 100663290

-- 
John Marshall

Received on Fri Jul 10 2009 - 09:26:35 UTC

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