Hi all,
First time here, so please be gentle! :)
I'm trying to configure a system that will pxeboot and retrieve a
kickstart file from a server based on that host's macaddress as part of
my Edison project[0] however I'm having issues getting the dns lookup to
work and I'm hoping you can help!
My pxelinux.cfg/default file is as follows:
======================
default linux
prompt 0
timeout 1
label linux
kernel /images/Centos-5.4-x86_64/vmlinuz
ipappend 2
append initrd=/images/Centos-5.4-x86_64/initrd.img
ksdevice=bootif text serial=tty0 kssendmac
ks=http://edison/api/kickstart/
======================
However the image that pxeboots doesn't appear to support DNS lookups,
regardless of the fact that my DHCP config pushes a DNS Server out to
the PXE Client (proven using a liveCD running dhclient against the same
server). The only way I can get this to work is to change the "ks"
stanza to the following:
ks=http://ip.ad.dr.ess/api/kickstart/
Is this a known issue, or am I missing something?
Kind regards,
Matt
[0] http://github.com/proffalken/edison/
--On Tuesday, November 02, 2010 09:36:08 PM +0000 Matthew Macdonald-Wallace <lists at truthisfreedom.org.uk> wrote:> Hi all, > > First time here, so please be gentle! :) > > I'm trying to configure a system that will pxeboot and retrieve a > kickstart file from a server based on that host's macaddress as part of > my Edison project[0] however I'm having issues getting the dns lookup to > work and I'm hoping you can help! > > My pxelinux.cfg/default file is as follows: > > ======================> > default linux > prompt 0 > timeout 1 > label linux > kernel /images/Centos-5.4-x86_64/vmlinuz > ipappend 2 > append initrd=/images/Centos-5.4-x86_64/initrd.img > ksdevice=bootif text serial=tty0 kssendmac > ks=http://edison/api/kickstart/ > > ======================> > However the image that pxeboots doesn't appear to support DNS lookups, > regardless of the fact that my DHCP config pushes a DNS Server out to > the PXE Client (proven using a liveCD running dhclient against the same > server). The only way I can get this to work is to change the "ks" > stanza to the following: > > ks=http://ip.ad.dr.ess/api/kickstart/ > > Is this a known issue, or am I missing something?The 'ks=' argument is processed by anaconda, well after the kernel has booted and PXELINUX (and your PXE client) are out of the picture. So, this really has nothing to do with PXE and everything to do with what happens afterwards. I would suggest trying a fully-qualified hostname; the search domain configuration that allows that to work on a fully-installed machine (if it does) is not available in the installer. -- Jeffrey T. Hutzelman (N3NHS) <jhutz+ at cmu.edu> Carnegie Mellon University - Pittsburgh, PA
On Tue, Nov 2, 2010 at 17:36, Matthew Macdonald-Wallace <lists at truthisfreedom.org.uk> wrote:> Hi all, > > First time here, so please be gentle! :) > > I'm trying to configure a system that will pxeboot and retrieve a > kickstart file from a server based on that host's macaddress as part of > my Edison project[0] however I'm having issues getting the dns lookup to > work and I'm hoping you can help! > > My pxelinux.cfg/default file is as follows: > > ======================> > default linux > prompt 0 > timeout 1 > label linux > ? ? ? ?kernel /images/Centos-5.4-x86_64/vmlinuz > ? ? ? ?ipappend 2 > ? ? ? ?append initrd=/images/Centos-5.4-x86_64/initrd.img > ksdevice=bootif text serial=tty0 kssendmac > ks=http://edison/api/kickstart/ > > ======================> > However the image that pxeboots doesn't appear to support DNS lookups, > regardless of the fact that my DHCP config pushes a DNS Server out to > the PXE Client (proven using a liveCD running dhclient against the same > server). ?The only way I can get this to work is to change the "ks" > stanza to the following: > > ks=http://ip.ad.dr.ess/api/kickstart/ > > Is this a known issue, or am I missing something? > > Kind regards, > > Matt > > [0] http://github.com/proffalken/edison/Try resolv.c32 to test how you're doing things. I know that at least some DNS servers I've used don't add your domain for you (domain or search in /etc/resolv.conf). I just used PXELINUX 4.03 with resolv.c32 from the official package and it could resolve "www.google.com" with no issue. I then also tried to test another name that should have had the local domain added to it and it just seemed to hang, repeatedly sending the query (without local domain) with no response. Try qualifying the name you're using. I'm not sure if PXELINUX was ignoring my domain or never attempts appending the domain without some more research. -- -Gene