[rhn-users] shutdown services when upgrading

[Rich Graves]

On Fri, 10 Jun 2005, Jim Pelton wrote:

> So I'm trying to develop a good strategy for updating (with up2date) 
> some web servers and several other production level boxes.  My question 
> arose out of the need to update httpd on the web farm.  If I go ahead 
> and update, will the rpm %pre and %post scripts (or whatever does this 
> type of thing) shutdown the httpd service, update and then bring it back 
> up?

You can choose not to run scripts by giving rpm the --noscripts option.

I'm not entirely sure what the $1 below refers to. I do know that just
about every time I update bind, it has done the wrong thing, both stopping
the service and removing it with chkconfig. So I'd test it if I were you.

[root]# up2date --get httpd
[root]# -qp --scripts /var/spool/up2date/httpd-2.0.46-46.ent.i386.rpm
preinstall scriptlet (using /bin/sh):
# Add the "apache" user
/usr/sbin/useradd -c "Apache" -u 48 \
        -s /sbin/nologin -r -d /var/www apache 2> /dev/null || :

# Prevent removal of index.html on upgrades from 1.3
postinstall scriptlet (using /bin/sh):
# Register the httpd service
/sbin/chkconfig --add httpd
preuninstall scriptlet (using /bin/sh):
if [ $1 = 0 ]; then
        /sbin/service httpd stop > /dev/null 2>&1
        /sbin/chkconfig --del httpd
fi
-- 
Rich Graves <rcgraves at brandeis.edu>
UNet Systems Administrator