yum and automatic updates

[Ian Hilliard]

> Message: 7
> Date: Mon, 28 Jun 2004 16:42:00 +0200
> From: 
> Subject: yum and automatic updates
> To: 
> Message-ID: 
> Content-Type: text/plain;        charset="us-ascii"
>
> Hi
>
> I just need to know if yum can update automatically allwithout manual
> intervention.
>
> I would to have a cron job with a "yum update" like, who said "yes" when
> yum ask "Is this ok [y/N]:"
>
> Thx for your response and really sorry for my poor english
>
> jix

Try: "yum -y update"

The -y indicates to automatically say 'yes'.

Ian

[Tom Mitchell]

On Mon, Jun 28, 2004 at 05:19:56PM +0200, Ian Hilliard wrote:
> > From:
> >
> > I just need to know if yum can update automatically allwithout manual
> > intervention.
> >
> > I would to have a cron job with a "yum update" like, who said "yes" when
> > yum ask "Is this ok [y/N]:"
> >
> > Thx for your response and really sorry for my poor english
> >
> > jix
>
> Try: "yum -y update"
>
> The -y indicates to automatically say 'yes'.

On FC2 there is a cron job controlled by 'chkconfig'.

$ chkconfig --list | grep yum
    yum             0:off   1:off   2:off   3:off   4:off   5:on   6:off

You can turn it on:

chkconfig yum on

or off

chkconfig yum off

The cron file uses the -y flag and looks like this:

$ cat /etc/cron.daily/yum.cron

#!/bin/sh

if [ -f /var/lock/subsys/yum ]; then
        /usr/bin/yum -R 10 -e 0 -d 0 -y update yum
        /usr/bin/yum -R 120 -e 0 -d 0 -y update
    fi

I sort of like the idea of adding a download only flag to the yum.cron
file myself.   Then the download time is suffered by the machine
and I have more visibility of the action.  YMMV.

There is nothing preventing a FC1 user from hand installing this stuff.
The file chkconfig finds looks like:

$ cat /etc/init.d/yum

#!/bin/bash
    #
    # yum           This shell script enables the automatic use of YUM
    #
    # Author:       Seth Vidal 
    #
    # chkconfig:    - 50 01
    #
    # description:  Enable daily run of yum, a program updater.
    # processname:  yum
    # config: /etc/yum.conf
    #

# source function library
    . /etc/rc.d/init.d/functions

lockfile=/var/lock/subsys/yum

RETVAL=0

start() {
        echo -n $"Enabling nightly yum update: "
        touch "$lockfile" && success || failure
        RETVAL=$?
        echo
    }

stop() {
        echo -n $"Disabling nightly yum update: "
        rm -f "$lockfile" && success || failure
        RETVAL=$?
        echo
    }

restart() {
        stop
        start
    }

case "$1" in
      start)
        start
        ;;
      stop)
        stop
        ;;
      restart|force-reload)
        restart
        ;;
      reload)
        ;;
      condrestart)
        [ -f "$lockfile" ] && restart
        ;;
      status)
        if [ -f $lockfile ]; then
    	    echo $"Nightly yum update is enabled."
    	    RETVAL=0
        else
    	    echo $"Nightly yum update is disabled."
    	    RETVAL=3
        fi
        ;;
      *)
        echo $"Usage: $0 {start|stop|status|restart|reload|force-reload|condrestart}"
        exit 1
    esac

exit $RETVAL

Now you have all the parts.