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Re: [fedora-virt] default tftp root dir in virt-manager or qemu?



On Wed, Jun 24, 2009 at 07:43:09AM +0100, Mark McLoughlin wrote:
> On Tue, 2009-06-23 at 21:44 +0100, Daniel P. Berrange wrote:
> > On Tue, Jun 23, 2009 at 04:50:12PM +0000, Mark McLoughlin wrote:
> > > Hey,
> > > 
> > > On Mon, 2009-06-15 at 19:28 +0200, Gianluca Cecchi wrote:
> > > > It seems that the guest gets one of the available ip provided by
> > > > dhcpd, also it founds dhcpd and tftp server: both are set to
> > > > 192.168.122.1 (the server itself with its virbro default interface).
> > > > No configuration done by me.
> > > > I see /etc/libvirt/qemu/networks/default.xml with some parameters but
> > > > I don't know if and how I can put here also tftp settings....
> > > 
> > > Yeah, what we really need here is to have support for setting up TFTP
> > > for libvirt's virtual networks - e.g.
> > > 
> > >   <tftp root="/var/lib/tftpboot/linux-install" />
> > >   <bootp file="pxelinux.0" />
> > > 
> > > which would cause dnsmasq to be run with:
> > > 
> > >   --enable-tftp --tftp-root=/var/lib/libvirt/tftp \
> > >   --dhcp-boot=pxelinux.0
> > > 
> > > we'd also need to open port 69 in our iptables rules.
> > > 
> > > Please file an RFE for this in bugzilla.redhat.com/Virtualization ...
> > > maybe even give a shot at cooking up a patch?
> > 
> > I really question what the point in going to setup a PXE server install
> > on each individual host OS is. The 'virtual network' is local only, so
> > you might as well just install the guest using a direct kernel+initrd
> > boot, avoiding all the host OS configuration steps, and extra PXE boot
> > complexity in libvirt. 
> 
> It's a fair point - the main use case I see for it is as a way of
> testing your PXE server config locally before booting remote machines.

For that I'd expect you to use the same PXE server as you would later.
eg, if you're going to deploy Cobbler, then I'd expect you'd want to
actually be testing cobbler locally. I'm sure cobbler could be configured 
to only attach to virbr0 for testing purposes.

Regards,
Daniel
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