scnr.net

It's not possible? Says who?

Archive for May, 2012

fakeuname

without comments

I recently needed to compile a proprietary kernel module for a different kernel than was currently running. There were multiple Makefiles involved and several references to header and kernel object directories based on “uname -r”.

Why didn’t I just boot the target kernel version? Well, the module is a driver for a specific device required for a certain service. Rebooting into the new kernel before building the new module would have caused more downtime for the service.

As I didn’t want to carefully edit several Makefiles and other files, I did a quick web search and found fakeuname. It worked fine and enabled me to fix some other unexpected compile errors, before shutting down the service. So I didn’t need to manually tamper with the version detection and still had minimal service downtime.

Written by johnLate

May 7th, 2012 at 1:11 am

Posted in Uncategorized