Date: Wed, 6 May 2009 12:06:00 +0200 From: Greg Byshenk <freebsd@byshenk.net> To: Helmut Schneider <jumper99@gmx.de> Cc: freebsd-stable@freebsd.org Subject: Re: [7.2] R/W mount of / denied. Filesystem not clean - run fsck. Message-ID: <20090506100559.GP1550@core.byshenk.net> In-Reply-To: <gtrmgk$6fc$1@ger.gmane.org> References: <gtrjq3$u24$1@ger.gmane.org> <4A015725.3050603@ksu.ru> <gtrmgk$6fc$1@ger.gmane.org>
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On Wed, May 06, 2009 at 11:50:11AM +0200, Helmut Schneider wrote: > Marat N.Afanasyev <amarat@ksu.ru> wrote: > >Helmut Schneider wrote: > >>after upgrading a few systems yesterday from 7.1-RELEASE to 7.2-RELEASE > >>on one machine I got the error above. The problem was that > >> > >>- I was unable to cope with it but booting from a live CD. > >>- the message appeared ~ 1000 times and then the kernel paniced. > >> > >>After fsck'ing / with the help of the live CD I rebooted the machine but > >>now I got the same problem with /home. > >> > >>How can I avoid such issues (except of not letting the machine crash)? Is > >>there a way to boot at least to single user mode and then run fsck (I was > >>at home, far away from the machine, not funny)? > There is no 'login' when / cannot be mounted... > > >fsck it. if you have another machine in there, you can try to make a > >serial console. or install a ip-kvm extender ;) > > I do have such thing (IBM Blade Center) but I'm looking for something to > avoid the situation above. Something that lets me at least boot into single > user mode. If you had access to the console (I'm guessing you did in order to use the live CD), did you try booting into single-user from the beastie menu? IME, failure to fsck the / menu should drop automatically to single-user at the console, but if this fails, then you should be able to choose single-user boot from the menu, which will then not try to run fsck or mount / rw. From there you should be able to fsck and remount /, as well as /home or anything else. This will fail if there is something horribly wrong with /, causing a failure even when / is mounted ro, but then there may be no good solution. -- greg byshenk - gbyshenk@byshenk.net - Leiden, NL
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