Here's the step by step way to update:
Repair Permissions using the Disk Utility on the drive to be updated;*
Backup your current installation using Carbon Copy Cloner or SuperDuper;
Download the latest MultiBeast for Mavericks which has the latest ACL8xy audio drivers**;
Use the Software Update to download and install 10.9.3 (recommend using the
Combo Update);
Re-boot;
Run MultiBeast for Mavericks and
just select your audio driver to install and TRIM (if needed);
Re-boot; and
Repair Permissions again.*
If you have TRIM enabled, check to see if it was affected by this update.
* You can use the Terminal instead of Disk Utility if you feel comfortable with a UNIX command:
Code:
sudo diskutil repairPermissions /
**
Important: If you've used a MultiBeast version previous to MulitBeast version 6.3 and updated to 10.9.3, you should do a complete MultiBeast configuration "load" using your previously saved ".mb" file. Multibeast 6.3 changes how audio is done and needs Chimera v3+ to run correctly.