heeeeelp me plzzz

hubbie just installed brand new hard drive on his imac its a little older and runs on i believe 10.4; any who the software wont let him install the second disk keeps giving him a black screen that says bad system call exited abnormally ;hang up local host:/ ihave no name!# exited with status :69
What are we doing wrong and how do we fix this

Sounds like the disk just isn't formatted. But based on your description, I'm not entirely sure what software you're using to set it up. If it's a brand new disk and he hasn't prepped it in any way, the normal procedure would be to boot the machine from System Disc 1 (one of the two discs that came with the machine). Then, start going through the OS X installer until the menu bar appears at the top of the screen. From the Utilities menu, you'll need to open Disk Utility, select the new disk and partition it.