Displaying message on boot
Hi guys, I wasn't really sure where to put this, but basically I am a ubuntu user and I use it on my desktop computer given to me by my job, and last time it was time for an upgrade, I used the guttman method to wipe the hdd before giving it back to them. After doing that, I mailed it out and they received it and said the hdd was damaged and could not be used again. But I think they are just stupid and turned it on and nothing came up so they thought it was broke.
So this time I want to do the wipe again but I want to somehow make a message come up on the screen when they turn it on saying something like "This hdd was wiped, procede to install OS" or something like that. Is there any bootloader or bootsector trick that can display a simple message like that? without having an os or anything big installed