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List:       amanda-hackers
Subject:    Re: xfsdump and sendsize problem on 2.4.0b6
From:       "John R. Jackson" <jrj () gandalf ! cc ! purdue ! edu>
Date:       1998-01-30 15:10:05
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>It would be nice if someone eventually wrote up a clear explanation of
>how amanda should be configured for "odd" systems like IRIX w/XFS.
>Any volunteers?

Alexandre Oliva has been working on the IRIX problem and recently added
the following to the IRIX 6 section of docs/SYSTEM.NOTES:

    If you have xfs filesystems to back up, amanda will pick xfsdump
    automatically.  However, since it must be run as root, amanda will
    use a setuid-root program called rundump to call it.  Unfortunately,
    this makes it impossible for amanda to kill it after it has printed
    an estimate line, as amanda usually does with other backup programs,
    unless the sendsize program is run as root.  So, xfsdump users have
    three alternatives:

    1) configure --with-user=root, so that all backup runs as user root.
    You shouldn't usually want lots of unknown code running as root,
    so you might prefer not to do this.

    2) make sendsize setuid-root.  This reduces the amount of code run
    as root (as compared with option 1), but sendsize may not be what
    you'd call a safe program.

    3) let it the way it is.  Estimates will take a bit longer, since
    xfsdump will dump the complete filesystem to /dev/null, but you
    may live with that, as long as you increase the estimate time-out
    (etimeout) in amanda.conf.

This is the usual place for comments about how to deal with various joys
vendors bestow on us.

>                       -Robert Tarrall.-

John R. Jackson, Technical Software Specialist, jrj@purdue.edu

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