Reboot Like a Racecar With kexec

"Kexec was originally intended for use by kernel and system developers who had to reboot several times a day. Soon, system administrators for high-availability servers found use for it as well. As systems get more and more advanced, and boot times get longer, end users can now benefit from it.

"The system is simple, and consists of two parts: a kexec-enabled kernel and the kexec-tools package. Most modern kernels already support kexec functionality, but I haven't found a reliable way to test for kexec support in the kernel. My suggestion is to try it -- if it works, you have it. If not, you may have to compile a custom kernel to get it. As for the second part, you can get the kexec-tools software either from your distribution's repositories or from the kexec project page."

Complete Story

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