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    SubjectRe: kernel-managed /dev, revisited
    On Thu, 10 Jul 1997, Leonard N. Zubkoff wrote:

    > Date: Thu, 10 Jul 1997 04:20:25 -0400
    > From: Jeff Garzik <jeff.garzik@spinne.com>
    >
    > Solaris is kinda fun to play with, and the guys at Sun occasionally have
    > a good idea or two.
    >
    > One of my biggest Linux pet peeves is having to reshuffle my !@#$@!
    > /etc/fstab every time I reshuffle my drives. [I do know about
    > Youngdale's tools for this] Running a news server means many SCSI ids,
    > many SCSI hosts, and a lot of reshuffling, on into the night...
    >
    > You think this is bad, life's going to get even more interesting when/if SCAM
    > (SCSI Configured Auto-Magically) becomes popular. It's possible for SCSI IDs
    > to change after a SCSI bus reset if there are SCAM devices, alas. There's
    > apparently no guarantee that the SCSI IDs will get assigned the same way every
    > time.
    >
    > Why, oh why, couldn't they have left well enough alone...

    Mainframers figured this one out a long time ago. Label your media, and
    extend the connect-media-to-the-filesystem function (mount(8) in our
    case) to mount by label content instead of physical location. So your
    fstab could look like:

    ...
    none /usr ext2 defaults,l="apps01" 1 1
    none /home1 ext2 defaults,l="users00" 1 1
    none /home2 ext2 defaults,l="users01" 1 1
    ...

    or maybe:

    ...
    (apps01) /usr ext2 defaults 1 1
    (users00) /home1 ext2 defaults 1 1
    (users01) /home2 ext2 defaults 1 1
    ...

    Mark H. Wood, Lead System Programmer MWOOD@INDYVAX.IUPUI.EDU
    Those who will not learn from history are doomed to reimplement it.


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