Date: Wed, 28 Nov 2007 04:10:04 GMT From: Gary Palmer <gpalmer@FreeBSD.org> To: freebsd-bugs@FreeBSD.org Subject: Re: misc/118160: unable to mount / rw while booting 7.0-BETA3 Message-ID: <200711280410.lAS4A4QX054204@freefall.freebsd.org>
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The following reply was made to PR bin/118160; it has been noted by GNATS. From: Gary Palmer <gpalmer@freebsd.org> To: Yuri <yuri@rawbw.com> Cc: Bruce Evans <brde@optusnet.com.au>, 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 Date: Tue, 27 Nov 2007 23:06:20 -0500 On Tue, Nov 27, 2007 at 07:11:52PM -0800, Yuri wrote: > > > 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 Is your root partition really on the "c" partition? The "c" partition represents the whole disk slice. Sure you don't mean ad12s1a? The conflict between using the c partition and swap on the b partion (which logically is a subset of the entire slice) could be the cause of EPERM > > > 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 > _______________________________________________ > freebsd-bugs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-bugs > To unsubscribe, send any mail to "freebsd-bugs-unsubscribe@freebsd.org" > >
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