[Sugar-devel] Adventures with GPA Macbooks

[Martin Langhoff]

On Wed, Sep 23, 2009 at 7:56 PM, Caroline Meeks
<caroline at solutiongrove.com> 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?

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...

   http://www.google.be/search?q=resetting+pram+mac

this is a good example

  http://support.apple.com/kb/HT1379

hth,



m
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