Re: newfs and mount vs. half-baked disks

From: Poul-Henning Kamp (phk_at_phk.freebsd.dk)
Date: 11/12/03

  • Next message: Alexander Leidinger: "Re: Patches to compile the kernel with Intel's C/C++ compiler" 
    To: Bruce Evans <bde@zeta.org.au>
Date: Wed, 12 Nov 2003 09:56:14 +0100

    In message <20031108191433.J608@gamplex.bde.org>, Bruce Evans writes:

    >I don't use GEOM, so the label won't be going away for me. Anyway, there
    >is no dependency (the label is just one of the things that one might
    >examine to recover a crashed disk), and any overaul by GEOM would have
    >to duplicate the functionality of storing metadata about the superblocks
    >somewhere outside the superblocks.

    This is a very good example of where it is important to get your
    terminology straight: No sane "overhaul by GEOM" would implement
    this in GEOM. It could be hacked into various existing classes or
    even done cleanly in its own class which is almost as silly.

    > (I actually store metadata about file
    >systems in (backups of) disk files in /var/backups. Normal backups
    >provide inadequate backups of metadata.)

    This is probably a much better idea than anything you said until now
    on the subject.

    It might not be a bad idea to store the relevant magics in a
    /etc/ufs.conf file, but there are some details about device vs.
    media/filesystem identification in particular in context of dynanic
    devices to that must be worked out. 

    -- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.
_______________________________________________
freebsd-arch@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-arch
To unsubscribe, send any mail to "freebsd-arch-unsubscribe@freebsd.org"
  • Next message: Alexander Leidinger: "Re: Patches to compile the kernel with Intel's C/C++ compiler"
    • Quantcast