New newfs vs. half-baked disks patch

From: Wes Peters (wes_at_softweyr.com)
Date: 11/11/03

  • Next message: Garance A Drosihn: "Re: Patches to compile the kernel with Intel's C/C++ compiler" 
    To: arch@freebsd.org
Date: Tue, 11 Nov 2003 13:52:05 -0800

    I re-did the patch using a differing magic number, as suggested. This
    approach works quite nicely. The patch is smaller and does more with
    no kernel mods.

    This patch does more because a filesystem partially created with newfs
    now has an invalid magic number on the first superblock. This means
    older kernels will not mount the filesystem and older fsck will at
    least warn about not finding the first superblock.

    This patch includes a change to fsck so it will recognize an incomplete
    newfs filesystem, exiting with a unique status (11) and issuing the
    message "This volume is incomplete, run newfs again."

    The patch to newfs includes the -E flag to generate error conditions;
    these changes will be committed separately. Barring lack of
    objections, I'd like to commit this tomorrow.

    Thanks to everyone who commented on the first round. This was my first
    foray into filesystem programming since my Minix days and you were all
    more than generous. 

    -- 
         "Where am I, and what am I doing in this handbasket?"
Wes Peters                                              wes@softweyr.com

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