Great - thanks for this Patrick. I should be able to get working what I
want to now.
Many thanks to all who replied!
Best Regards,
Neil
"Patrick J.
LoPresti"
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Re: [Unattended] Multiple
unattend.txt files?
04/29/04 03:22 PM
Neil Robst <[EMAIL PROTECTED]> writes:
> Thanks for this Max.
>
> PXELinux can call a different pxelinux.cfg file based upon that the
> client's IP address. Therefore is there something I can put in the
> pxelinux.cfg config file that will pass a parameter name containing the
> unattended.txt file to use to unattended???
>
> Regards,
> Neil
We have no direct support for this, but it can be done with a little
Perl coding.
The kernel parameters appear in "/proc/cmdline", as for any Linux
system. So you can look there to find the options passed by PXELINUX.
Also, DHCP option 233 appears in the "unattend=..." line of
/var/run/dhcp.out. We create this file ourselves in our
udhcpc-script, which runs when the DHCP lease is obtained. (We
patched the DHCP client to hand us option 233, a number which I picked
after careful meditation and Google searching.)
In your case, I would recommnd using the DHCP option, since that
avoids the need for multiple pxelinux.cfg files.
You need to parse /var/tmp/dhcp.out to obtain the "unattend=..." line,
then parse that line to get the unattend.txt file name, then use
$u->load() to read it. I realize this is messy, but it should work.
For the next release, I will look into adding a "get_cmdline_param()"
interface to install.pl, which will let you query the kernel command
line and DHCP option 233 directly. This interface may be difficult to
support under DOS, however.
- Pat
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