On Wed, 2010-11-17 at 10:45 -0800, Joe Pruett wrote: > > On 11/17/2010 10:35 AM, Robert Heller wrote: > > At Wed, 17 Nov 2010 10:16:51 -0800 CentOS mailing list <centos at centos.org> wrote: > > > >> it looks like one of the recent updates will sometimes chmod /dev/null > >> to 600. out of 20 machines i've updated, 3 of them had the odd > >> /dev/null perms afterwards. i haven't tried to identify what it doing > >> it yet, but wanted to give a heads up to others that might start seeing > >> weird behavior. > > Look in /etc/udev/rules.d/50-udev.rules. My copy has the line: > > > > KERNEL=="null", MODE="0666", OPTIONS="last_rule" > > > > You haven't managed to mess with this rule? > no changes to udev rules. and this happens immediately after the update > is run, no reboot required. what is weird is that the config on the > systems i run are pretty close to each other, so why only a few got hit > by this is odd. i had one happen yesterday and thought i had just done > something stupid, but then more popped up today immediately after doing > updates, so that is why the warning. ---- Ok now for some work... Gather up a list of your RPMs you updated and well check them all for /dev/null changes for te culprit. [ethan at midnight ~]$ rpm -q --scripts kernel-rt postinstall scriptlet (using /bin/sh): /sbin/new-kernel-pkg --package kernel-rt --banner "EM2Grid Enterprise Linux (realtime)" --mkinitrd --depmod --install 2.6.24.7-149.el5rt || exit $? preuninstall scriptlet (using /bin/sh): /sbin/new-kernel-pkg --rminitrd --rmmoddep --remove 2.6.24.7-149.el5rt || exit $? postinstall scriptlet (using /bin/sh): /sbin/new-kernel-pkg --package kernel-rt --banner "EM2Grid Enterprise Linux (realtime)" --mkinitrd --depmod --install 2.6.24.7-161.el5rt || exit $? preuninstall scriptlet (using /bin/sh): /sbin/new-kernel-pkg --rminitrd --rmmoddep --remove 2.6.24.7-161.el5rt || exit $? John