On 09/01/2010 06:14 PM, Timothy Murphy wrote:
Ranjan Maitra wrote:
>> What exactly is ksplice meant to do?
>> I yum-installed it today,
>> and then ran "yum update" which installed a new kernel.
>> I expected this to start running, but it didn't.
>> Admittedly I didn't read any instructions.
>>
>
> Sounds very cool, and I had not heard of it before today also, but here
> is the results of yum info ksplice:
>
> Summary : Patching a Linux kernel without reboot
> URL :
http://ksplice.com
> License : GPLv2
> Description : Ksplice allows system administrators to apply security
> patches to
> : the Linux kernel without having to reboot. Ksplice takes as
> : input a source code change in unified diff format and the
> : kernel source code to be patched, and it applies the patch
> : to the corresponding running kernel. The running kernel does
> : not need to have been prepared in advance in any way.
>
> Is it too good to be true?
Sorry, but it sounds to me as though it is much easier to re-boot.
For most users,
yes, much easier to reboot.
But there are hundreds if not thousand of situations
where a reboot is out of the question.
If you have not worked in very large database center with
thousands of clients all over the world, you will understand
why sometimes a reboot would be out of the question.