I'm assembling some DR stuff for my Linux boxes. One item that would be really handy would be a GRUB option that would run a script to change my boxes from static IPs to dynamic.
I know we could do a single user mode, run a script, reboot, etc but it would greatly simply things for the other admins (mostly with a Windows background) to select one item and have it complete the process automatically.
I would swear that I've seen configuration settings provided to let Grub do this at one point or another but it's been a while. Not sure what to google for.
I'm aware of the rc.local method, however I don't want this to run on every boot. I want there to be an option listed (line item in grub.conf, probably) which allows for a specific script to be run only when that boot option is selected.