> -----Original Message----- > From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On > Behalf Of email builder > Sent: Tuesday, April 05, 2011 19:41 > To: CentOS mailing list > Subject: Re: [CentOS] Understanding yum automatic upgrades > > > It does look like updates are happening, but it's not clear to me by > whom. > do_update is set to "no", but notification is by "dbus", so I assumed > that > "dbus" is notifying another process to do the actual updates. Is there > a way I > can track that down? > > > Are you sure the updates are actually getting installed, and it's > not > > just noise in the log from yum-updatesd? > > Well, if I can take it at its word, updates *are* happening. Here is a > snippet > I clipped out of a logwatch a few months ago: > > --------------------- yum Begin ------------------------ > > > Packages Updated: > php-dba - 5.1.6-27.el5_5.3.i386 > php - 5.1.6-27.el5_5.3.i386 > php-devel - 5.1.6-27.el5_5.3.i386 > php-cli - 5.1.6-27.el5_5.3.i386 > php-common - 5.1.6-27.el5_5.3.i386 > php-gd - 5.1.6-27.el5_5.3.i386 > php-pdo - 5.1.6-27.el5_5.3.i386 > php-mysql - 5.1.6-27.el5_5.3.i386 > > ---------------------- yum End ------------------------- A much more reliable way to check is rpm -qa --last |less or simply run yum update and see what it thinks needs updated yet. If things are reasonably up-to-date I would expect the --last list to have a tzdata-2011b package listed near the top. One other thing the --last list will revel is WHEN the updates were applied, if they consistently are at a particular time of the morning then it may be based on a cron job.