Maxim Konovalov maxim at
Sun Sep 5 23:20:22 PDT 2004

The following reply was made to PR bin/65223; it has been noted by GNATS.

From: Maxim Konovalov <maxim at>
To: bug-followup at
Subject: bin/65223
Date: Mon, 6 Sep 2004 10:17:02 +0400 (MSD)

 Add some info about the root of the problem from Kirk McKusick:
 : Executive summary: you need to run `fsck -f -p' whenever you switch
 : to or from a 4.X (stable) and a 5.X (current) kernel. The reason
 : is that the UFS1 superblock summary information is maintained in
 : different parts of the superblock on these two systems. Neither
 : system maintains the summary information used by the other. There
 : is no risk of trashing your filesystem if you fail to run the fsck,
 : but the information reported by `df' will be wrong until you run
 : the fsck.
 Maxim Konovalov

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