[CentOS] how long to reboot server ?

Keith Roberts keith at karsites.net
Fri Sep 3 02:03:51 EDT 2010

On Thu, 2 Sep 2010, Todd Denniston wrote:

> To: CentOS mailing list <centos at centos.org>
> From: Todd Denniston <Todd.Denniston at tsb.cranrdte.navy.mil>
> Subject: Re: [CentOS] how long to reboot server ?
> Rudi Ahlers wrote, On 09/02/2010 04:49 PM:
> <SNIP>
>> I've had cased where a kernel didn't
>> work as expected though, but we don't reboot a server every 2 months to
>> see if the kernel might have failed.
> surprised I have not seen anyone mention the other two things which can conspire to cause reboot
> trouble (with the kernel) with long uptimes
> 1) automatic updates by yum-updatesd
> 2) small (only 3) installonly_limit
> If you are not careful, the last known working kernel is gone when you go to reboot. :(

My reboot times are regular, (still on F12 on this 
machine) but I always copy the kernel files into a subdir 
'tmp-backups' so I can get them back if needed, even if yum 
deletes them.


> I usually am mindful of both of these settings.
> -- 
> Todd Denniston
> Crane Division, Naval Surface Warfare Center (NSWC Crane)
> Harnessing the Power of Technology for the Warfighter
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