Reading through my RSS feeds, I came across the following blog post describing one Linux administrator using tune2fs to disable the “please run fsck on this file system after X days or Y mounts.” I’ve got to admit, this is kind of annoying. I’ve taken production critical Linux boxes down for some maintenance, only to [...]
I just found out the folks in the CentOS community have a planet feed! If you are interested in keeping up to date with all things CentOS, you should add their feed to your RSS reader.
One feature I really liked in Solaris 10 was SMF. It provides a framework using services manifests on the system to automatically respawn services should they die off. It handles dependencies, restarts, and a single unified command set to configure the system using svcs, svccfg, and svcadm. Linux looks like they’ve started to integrate some [...]
I had to install some software last night on one of my 64-bit CentOS Linux hosts, and noticed that glibc was listed twice in my rpm query: $ rpm -q -a | grep glibc-2.5-34 glibc-2.5-34 glibc-2.5-34 At first I thought my RPM package database was borked, but then it dawned on me that there are [...]
There is quite a bit of documentation around the internet on the linux boot process, but Gustavo Duarte I think did an excellent job describing this in a clear and concise way. He also has several links to the Linux kernel source code and describes what is occurring step-by-step through the bootstrap phase all the [...]
Ever wonder what those CPU flags meant when looking at /proc/cpuinfo? Check out cpufeature.h under /usr/src/kernels/<kernel>/include/ It’ll give you a basic description of what you’re looking at. $ pwd /usr/src/kernels/2.6.18-92.el5-i686/include $ find . -name cpufeature.h ./asm-i386/cpufeature.h $ grep flags /proc/cpuinfo flags : fpu tsc msr pae mce cx8 apic mtrr mca cmov pat pse36 clflush [...]
