Date: Tue, 14 Feb 1995 03:05:25 -0800 From: David Greenman <davidg@Root.COM> To: Andreas Schulz <ats@g386bsd.first.gmd.de> Cc: tsai@server.keck.lmu.edu, questions@FreeBSD.org Subject: Re: Clear Flag in SUPERBLOCK? Message-ID: <199502141105.DAA02615@corbin.Root.COM> In-Reply-To: Your message of "Tue, 14 Feb 95 11:47:09 %2B0059." <199502141047.LAA23197@g386bsd.first.gmd.de>
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> >> After I install the FreeBSD 2.0. I use fsck to ckeck my hard drive, but it >> always tell me that "clear flag in superblock is incorrect". I press y to cleanthis, but it still the same when I run fsck again. I also use fsck -p to clean this error, but it still give me the same message. I really don't know what is going on. > >You should only use fsck, if you are in single user mode. I suspect you >have your machine booted into multi-user mode. Then fsck will always >tell you that for all the mounted filesystems. You can boot into single >user mode at the Boot: prompt with the "-s" flag. We need to write a >boot man page :-). You should never set the clean flag on a mounted filesystem...for that matter, you should never run fsck on a mounted filesystem without the -n (nowrite) flag. If fsck does write to the mounted filesystem, it can destroy data and/or cause the machine to panic because of the corruption it causes. There is no synchronization between the changes that fsck makes and the changes the kernel makes. -DG
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