Logic Studio Won't Launch, Unexpectedly quits when it gets to "Core Audio" section of boo Options

[alchemy]

I have Logic Pro 8 and I run DP 6 with some of the MOTU PCI and Firewire gear as well as ProTools LE using a Digi-003r.

After I had upgraded to ProTools LE 8, Logic started crashing and won't boot fully. It keeps crashing a few seconds after it starts processing CORE AUDIO.

Any suggestions?

I'm about to perform a clean install on the MacPro but I don't want to do that given everything that is installed on it.

[lepetitmartien]

First things to try are :

- To make some clean up with Apple Disk Utility (repair drive and permissions). The best would to do so booting from the OS X instal DVD and select the disk utility from the utilities menu.
- To go deeper with Onyx, using the Automation part (select everything save SpotLight indexing and Mailboxes indexing)
- To dive into the Audio MIDI utility (in apps/utilities), and verify/change settings. You can eventually trash its preferences on the way.
- Check into the Console to see if there's an entry telling what exactly made Logic crash at the Core Audio step.

[midiwife]

First things to try are :

- To make some clean up with Apple Disk Utility (repair drive and permissions). The best would to do so booting from the OS X instal DVD and select the disk utility from the utilities menu.
- To go deeper with Onyx, using the Automation part (select everything save SpotLight indexing and Mailboxes indexing)
- To dive into the Audio MIDI utility (in apps/utilities), and verify/change settings. You can eventually trash its preferences on the way.
- Check into the Console to see if there's an entry telling what exactly made Logic crash at the Core Audio step.

Personally I use Applejack to do my permissions repair in my studio. It's solved 99% of my 'mysterious crash/quit' situations.
It's free to download from here:

http://applejack.sourceforge.net/

And well worth a donation if you find it as useful as I do!