Jump to content

How to configure the Darwin Boot Loader?

9 posts in this topic

Recommended Posts



I googled a bit but could not find any information on this topic.


Which files configure the Darwin Boot Loader? I want to reduce the wait time ( 8 seconds actually) and change the default partition from Mac OS X to Windows.


Does anyone know which files I have to look at or where I can find information regarding this topic?


Greetings and thanks in advance,



To set the timeout time, go to "/Library/Preferences/SystemConfiguration" and edit "com.apple.Boot.plist".


Add this before the </dict> tag:




Where # is the number of seconds you want.


You can also add other boot parameters here (like platform and Quiet Boot) but I don't know if there is one for setting the default partition.

For the default partition, you might want to look into...


changing the text:

    <key>Kernel Flags</key>

to be:

    <key>Kernel Flags</key>


from the same file in



I have not personally tried this, so post your results if you try it out.

  • 2 years later...

I changed the com.apple.boot.plist file the rd= option and now i'm stuck

i cannot get back into leo :)


can i repair it from the leo4all install DVD


I am noob don't know anything about linux - unix



Someone pleeez help

  • 3 weeks later...
  • 4 months later...

I have 2 installs of osx, one works perfectly, the other is a copy of it on another disk, made with super duper.


the darwin boot loader sees the copied version as being a foriegn os and not bootable


how do I change this? I need to make bootable backups as a routine thing!

  • Create New...