Thanks Martin,<div> </div><div>Does that give us any hint about whats happening? How is that PRAM/PROM normally set? Maybe we need to go change the default somewhere? <div class="gmail_quote">On Tue, Sep 29, 2009 at 11:33 AM, Martin Langhoff <<a href="mailto:martin.langhoff@gmail.com">martin.langhoff@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div class="im">On Wed, Sep 23, 2009 at 7:56 PM, Caroline Meeks <<a href="mailto:caroline@solutiongrove.com">caroline@solutiongrove.com</a>> wrote: > Problems seem to be a good bet! What the golly gosh jimminy crippers is > going on?!? Why does it work once and not again? What is linux doing that is > keeping MacOSX from booting even after all the linux medium is removed? </div>The macs have a funny BIOS that has a persistent memory. So it will remember where you booted from, and a few other things. If this BIOS gets confused and stores its confusion in persistent mem, you get exactly what you are seeing. Removing the batteries resets this memory. In Mac parlance, resetting this memory is known as "resetting the PRAM" (or maybe PROM). There is a key combination -- different between mac models -- that does this. Add the exact model of your mac to the search below... <a href="http://www.google.be/search?q=resetting+pram+mac" target="_blank">http://www.google.be/search?q=resetting+pram+mac</a> this is a good example <a href="http://support.apple.com/kb/HT1379" target="_blank">http://support.apple.com/kb/HT1379</a> hth, m -- <a href="mailto:martin.langhoff@gmail.com">martin.langhoff@gmail.com</a> <a href="mailto:martin@laptop.org">martin@laptop.org</a> -- School Server Architect - ask interesting questions - don't get distracted with shiny stuff - working code first - <a href="http://wiki.laptop.org/go/User:Martinlanghoff" target="_blank">http://wiki.laptop.org/go/User:Martinlanghoff</a> </blockquote></div> -- Caroline Meeks Solution Grove Caroline@SolutionGrove.com 617-500-3488 - Office 505-213-3268 - Fax </div>