Re: How do I enable nightly yum?

From: John Summerfied (debian_at_herakles.homelinux.org)
Date: 05/18/05

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    Date: Wed, 18 May 2005 08:20:52 +0800
To: For users of Fedora Core releases <fedora-list@redhat.com>

    Rick Stevens wrote:

    >
    >> I would have thought a daily (or rather nightly) cron job
    >> running "yum -y update" would be what most people would want,
    >> at least on a desktop.
    >
    >
    > Yes, that's one way. Don't forget to do "yum -y update >/dev/null 2>&1"
    > unless you want mail sent to root everytime it runs.

    I think running yum to automatically update your is a particularly
    effective way of getting your system screwed without you knowing why,

    Diverting all the output to /dev/null compounds the problem because it
    discards some of the evidence.

    How likely is it that a particular update is broken?
            Quite low, but not impossible.
    How likely is it that there will be a serious problem with an updated?
            Almost certain.

    There has been a recent kernel update providing a kernel that does not
    work on some systems. On mine, it would not shut down cleanly so I was
    forced to cycle power (no reset button) to reboot. Others had problems
    booting. Worse, the new-kernel policy is the latest-installed is the
    default.

    glibc and rpm both have the ability to bork the entire system.

    I have no problem with running a tool to download updates regularly, but
    I _will not_ apply them automatically. I do it manually so that then I
    know something's changed.

    up2date has the ability to download and _not_ apply updates: I did that
    on taroon beta.
    apt-get has the ability to download and _not_ apply updates. I do that
    on my several Debian systems.

    yum has not this ability and so IMV is ill-suited to the task of
    maintaining one's software where automation is desired. 

    -- 
Cheers
John
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