[CentOS-devel] ksplice and CentOS

[Dmitry E. Mikhailov]

On Friday 22 July 2011 07:12, Cia Watson wrote:
> This tool is used to load a kernel in memory and reboot into
> the kernel loaded in memory using the kexec system call.
FIrst of all, kexec is not ksplice. kexec allows to reboot kernel without 
rebooting hardware, but it's still a reboot and a usual disruption of 
services associated with it. ksplice is a quite another thing. It allows to 
apply patches to an already running kernel with no disruption of services.

Second, kexec is included in CentOS already:
[tn at ibm2 cropgui]$ rpm -q kexec-tools
kexec-tools-1.102pre-96.el5_5.4

Not sure whether default CentOS kernels support kexec system call.


Best regards,
	Dmitry Mikhailov