Greetings. We're running a mix of Scientific Linux (SL) versions on Intel and AMD processors. All of our "production" systems are still running SL 3.0.3. We noticed some time ago that the daily cron job to do yum updates (/etc/cron.daily/yum.cron) was "hanging" routinely. I.e., there would routinely be various yum-related tasks in the 'S' (sleeping) state on our systems. These sleeping tasks would prevent the yum cron job from running on succeeding days. We never found out the cause of the problem, but we did alleviate the problem by removing yum.cron and scheduling our own daily yum updates. Logically I wouldn't have expected there to be any difference in the results produced by the two methods, but things did seem to work better after removing yum.cron. Nevertheless, regardless of the yum voodoo that we try to apply, we still are plagued by the "hanging-yum" problem. I was recently on vacation for about a week, and I found half a dozen or so systems with suspended yum-update jobs when I returned. I'd be glad to get suggestions for ways to eliminate this problem. Maybe just updating to a newer version of SL would be enough to do the trick? Thanks. - Mike -- Michael Hannon mailto:[log in to unmask] Dept. of Physics 530.752.4966 University of California 530.752.4717 FAX Davis, CA 95616-8677