[CentOS] kexec for CentOS 4?

Dominik Zyla gavroche at gavroche.pl
Tue Mar 2 15:12:55 UTC 2010

On Tue, Mar 02, 2010 at 03:04:06PM +0000, Tony Mountifield wrote:
> In article <4B8D1650.1060001 at mcclatchyinteractive.com>,
> Tom Georgoulias <tomg at mcclatchyinteractive.com> wrote:
> > On 03/02/2010 05:10 AM, Tony Mountifield wrote:
> > > I have a remote CentOS 4 machine on a network where I can't put a DHCP
> > > or PXE server, and I want to do a complete reinstall. So what I want to
> > > do is, from the currently-running system, to invoke an installation
> > > kernel and initrd in just the same way that GRUB would, giving it a boot
> > > command line that specifies a remote kickstart file, installation tree,
> > > and other required info.
> > 
> > > If not, are there any other ways to achieve what I've described?
> > 
> > I would use cobbler and koan for this.  Once you have a cobbler server 
> > setup for the kickstart (which is super easy to do), you can use koan 
> > with the --replace-self and -k options and do exactly what you want.
> Can this be done even if I can't put the cobbler server on the same
> network as the box I want to re-install? The information I found on
> cobbler suggested to me that it was a tying together of DHCP, PXE,
> kickstart and install tree. As I understand it, the DHCP and PXE/TFTP
> servers have to be local, and also I have to have the box able to perform
> a PXE boot. So if the box in question is remote and on a network that
> I don't control or have any other boxes on, I suspect cobbler and koan
> wouldn't work.
> I could well have misunderstood - I found very little detail about koan
> apart from the command line options.


Yes, It must be the same network/vlan.

Dominik Zyla

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