How to install lm_sensors on XenServer
This is tested on Xenserver 6, may also work on other similar OS
1. ssh to server as root
2. type
wget ftp://ftp-stud.hs-esslingen.de/pub/Mirrors/archive.fedoraproject.org/fedora/linux/releases/9/Fedora/i386/os/Packages/lm_sensors-3.0.1-5.fc9.i386.rpm
rpm -ivh lm_sensors-3.0.1-5.fc9.i386.rpm
3. run
sensors-detect
and just select YES to all default options
4. to check temp, run
sensors