On Fri, Apr 20, 2012 at 08:09:27PM +0800, 卜弋天 wrote: > Hi All: i have a vmlinux file, how can i know when it is created/compiled? thanks. Best Regards The "file" utility should give you the version, the compile time, and some other information about vmlinuz and probably also vmlinux files. HTH, Jonathan Neuschäfer