Re: [Xen-users] How to stop yum update on CentOS 5.1 to modify grub

[Bas Mevissen <abuse@xxxxxxxxxxxxxx>]

Rudi Ahlers wrote:

> That's what I'm fearing as well. What if the Xen kernel crashes. In this 
> case I'd still need to drive out to the DC - which I don't quite want. 
I've installed an IPMI2 module in my server. Costs about Eur 50 and 
gives you remote monitors (temperature, fans) and serial port-like 
console. Saved me a few trips to the DC already.
> I guess I'll just exclude the normal kernel from the updates as you 
> suggest. P.S. Do you know if one could set a backup / fail-safe kernel 
> in grub, which can automatically boot if thew default kernel gives 
> problems?
Just set UPDATEDEFAULT to "yes" if you want the latest Xen kernel by 
default and to "no" otherwise. Set DEFAULTKERNEL to "kernel-xen" and 
simply leave that other kernel around.
Grub is no watchdog. So it cannot detect boot failure. If you want 
something like that, arrange a budget and contact me :-)
Bas.

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