[mythtv-users] PXE Network Boot
isely at isely.net
Thu Mar 13 19:55:13 UTC 2008
On Thu, 13 Mar 2008, Mitch Gore wrote:
> > > 1. It tries to rename eth0 to eth1 but cant because its busy (durr its
> > > booting of the int.) How to i disable it bring UP thin int again?
> > I'm not exactly clear there on what is happening there. What I do know
> > (and you'll see this mentioned in that link I gave) is that you can
> > NOT have either of the following in your /etc/network/interfaces
> > allow-hotplug eth0
> > auto eth0
> > The reason is that the adapter has already been brought up. If you
> > take it down, you've lost your connection to the filesystem.
The above is exactly right - for a Debian system. Possibly also for any
Debian-derived system (e.g. ubuntu). But Fedora sets up networking
differently than this.
For Debian users, you can also put this into /etc/network/interfaces:
iface eth0 inet manual
That essentially changes eth0 operation into a noop. The reason this
might be desirable over simply omitting eth0 is that other parts of the
Debian boot process might depend on eth0 actually being up'ed first -
triggering the various nearby if-up.d scripts. I hit this problem when
trying to set up another NFS client mount.
I've been writing up a long page describing all the fun I've had in
setting up diskless PXE-booted read-only NFS-rooted frontends. The
writeup isn't finished, but the trick above is in there. The URL for
the page is here:
isely @ pobox (dot) com
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