Mailinglist Archive: opensuse-autoinstall (59 mails)

[Wayman Smith <wayman.smith@xxxxxxxxxx>]

Mike Marion wrote:
> On Thu, Jan 24, 2008 at 02:31:04PM +0100, Hans-Joachim Ehlers wrote:
>
>   
> > During the post install a script on the client removes its PXE and/or 
> > dhcp configuration on the installation. Thus the next pxe boot will 
> > fail and the client should proceed with the local boot.
> >     
>
> This is exactly how our setup works, and it works well.  You can either
> use a symlink/file that you delete, or file that you edit on the fly in
> scripts (I recommend chroot as the install was likely successful by then
> and happens before initial reboot).
>
> We use the files named by the mac address.. easy to get from running
> system like so:
>  mycfg=`ifconfig $pxe_dev | awk '/HWaddr/{print $NF}' | sed 's/:/-/g' | tr 
> '[:upper:]' '[:lower:]'`
>  mycfg="01-$mycfg"
>
> i.e. this:
> eth1      Link encap:Ethernet  HWaddr 00:0C:6E:7A:69:D1
> results in:
> $ echo $mycfg
> 01-00-0c-6e-7a-69-d1
>
> We setup files with default declarations for the install and for the
> boot from disk options, then use sed to flip which is commented out
> (mounted the /tftpboot dir onto /tmp/pxe):
>  mv -f /tmp/pxe/pxelinux.cfg/$mycfg /tmp/pxe/pxelinux.cfg/${mycfg}.orig
>  sed -e 's/^DEFAULT/#DEFAULT/g' -e 's/^#\(DEFAULT disk\)/\1/g' 
> /tmp/pxe/pxelinux.cfg/${mycfg}.orig > /tmp/pxe/pxelinux.cfg/$mycfg
>         
> I'm sure plenty know this but for the few that might not; the really nice 
> side-effect of having hosts set in the bios to pxe boot first is that 
> it makes doing widespread OS upgrades/installs a piece of cake.  We have 
> a batched script for configuring the install info, then can power on whole 
> racks of boxes at once and never have to touch them.
>
>   
I would like to employ this solution. But if I understand correctly, you 
use a chroot script to edit the MAC address specific configuration file. 
I understand the sed portion of what you are doing, but I don't realize 
how the client machine is accessing the MAC address specific 
configuration file on the server. But this is the ideal solution.

Thanks,

--Wayman
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