How to pass options to the booted system via PXECONFIG script

[robinsmidsrod]

Not sure why you'd need an external file for that. Just add them to the imgargs line like this my_ip=${ip}. Then you can just read the value out of /proc/cmdline once Linux has booted. Since you already control /etc/rc.local it shouldn't be too hard. Remember you can also add a custom file to the initrd by doing something like this:

Code:

kernel nfs://192.168.13.5/var/www/nfsshare/casper/vmlinuz
initrd nfs://192.168.13.5/var/www/nfsshare/casper/initrd.gz
initrd nfs://192.168.13.5/var/www/some/file/here/${chip} /tmp/chip.txt
echo now booting...
imgargs vmlinuz root=/dev/nfs boot=casper netboot=nfs nfsroot=192.168.13.5:/var/www/nfsshare/
boot

The specific "chip" file for your network card would then be available inside Linux as /tmp/chip.txt after the system is booted. If you point it at a web server instead of nfs you could even dynamically generate it with a simple CGI script. Lots of options available.