Date: Tue, 27 Nov 2007 19:11:52 -0800 From: Yuri <yuri@rawbw.com> To: Bruce Evans <brde@optusnet.com.au> Cc: Yuri <yuri@tsoft.com>, freebsd-gnats-submit@freebsd.org, freebsd-bugs@freebsd.org Subject: Re: misc/118160: unable to mount / rw while booting 7.0-BETA3 Message-ID: <1196219512.474cdc78837c1@webmail.rawbw.com> In-Reply-To: <20071121170349.X81263@delplex.bde.org> References: <200711210234.lAL2Y7cU041129@www.freebsd.org> <20071121170349.X81263@delplex.bde.org>
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> > While booting log says: > > Starting file system checks: > > <here goes the list of file systems that it reports, this is ok> > > mount: : Operation not permitted. > > This is probably a secondary problem. You apparently have the root device > mounted on "" or something like that. > What does mount shouw for the root device? > No, when I get to shell after this failure during the normal boot process mount shows: /dev/ad12s1c / (ufs,local,read-only) swapinfo shows that swap volume is /dev/ad12s1b > > The major bug seems to be in the 'mount' system call. 'man mount' says that > EPERM is returned if "The caller is neither the super-user nor the owner of > dir." I am root. > > You are apparently attempting to mount the same device twice (even though > -u specifies an already-mounted device, the kernel is apparently confused > about where it is mounted). > I thought that mount command is supposed to pick up the locations correctly, so that when I say 'mount -uw /' device should be picked up from the already mounted list. Also I found that swapon and mount are related in my case. Once swapon is done I can't remount root as r/w. And vice versa, when mount -uw is done swapon returns EPERM. This happens when I boot as single user. When I do swapon consecutive 'mount -uw ' fails. When I do 'mount -uw' consecutive swapon fails. So I don't have swap at all since this command failed during boot. I guess 'nmount' and 'swapon' system calls are similar and somehow interfere with each other. So I still can't boot normally, only through single user mode and I don't have swap at all after this. Yuri
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