2014-05-14 | 0 comments
It appears that at least with the EL6.x 2.6.32-220.23.1.el6.x86_64 kernel and the bridge-utils-1.2-10.el6.x86_64 package, there are restrictions on the possible MTU values that made be set for a bridge interface. Specifically, you may not set the MTU of the bridge … Continue reading
2014-04-01 | 0 comments
# pcs cluster unstandby pollux1 Error: node ‘pollux1’ does not appear to exist in configuration I hit this error message from Pacemaker pcs util while trying to bring nodes out of standby after having put them into that state with … Continue reading
2013-05-24 | 5 Comments
Occasionally, RPMs will set the xattr immutable flag on important libraries as a safety mechanism to try to prevent core OS breakage. Unfortunately, this will cause package upgrade failures with vague error messages. Eg.: [root@archive ~]# yum update -y nss … Continue reading
2013-04-23
My friend and colleague Stuart Sheldon has vlogged about the many benefits of SystemRescueCd or sysresccd. Sysresccd has built in support for acting as a PXE server to boot other systems without having to connect local media. There are some … Continue reading
2013-02-27 | 0 comments
I’m sure it’s never happened to you but for me, occasionally, bundler or even the gem command pulls in a different version of a Gem that was installed by a standard system package. Even more rarely, this breaks some other … Continue reading