Mavericks!

Helped upgrade a friend's 2011 MacBook Pro to Mavericks.

Found a nice tutorial on macworld. It indicates 2 options for the upgrade installation:

- use createinstallmedia OR

- use disk utility

The first option never works, it always returns an error when creating a bootable drive:

Failed to start erase of disk due to error (-9999, 0). 

A error occurred erasing the disk.

The second one works like a charm :)

Two useful links:

http://www.macworld.com/article/2056561/how-to-make-a-bootable-mavericks-install-drive.html


http://eric.gavaletz.com/2013/10/making-os-x-mavericks-usb-installer.html