Date: Fri, 10 Jul 2009 10:14:15 +0400 From: Eygene Ryabinkin <rea-fbsd@codelabs.ru> To: freebsd-current@freebsd.org Subject: Re: 8.0-BETA1 bsdlabel broken? Message-ID: <fX%2BVI6m2svXk4wDqOGQ3HIesgO8@jmKTY7juey8QgiyMw1P6k9Lb4sg> In-Reply-To: <20090710042106.GC31950@rwpc12.mby.riverwillow.net.au> References: <20090710042106.GC31950@rwpc12.mby.riverwillow.net.au>
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Jogh, good day. 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. -- Eygene _ ___ _.--. # \`.|\..----...-'` `-._.-'_.-'` # Remember that it is hard / ' ` , __.--' # to read the on-line manual )/' _/ \ `-_, / # while single-stepping the kernel. `-'" `"\_ ,_.-;_.-\_ ', fsc/as # _.-'_./ {_.' ; / # -- FreeBSD Developers handbook {_.-``-' {_/ #
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