How can I initiate OS X installation from a dmg in Windows on a Mac? I have a MacBook Pro with a working BOOTCAMP partition running Windows 8, and a damaged OS X 10.10 beta partition. The problem is that I cannot boot with the OS X partition, and in order to reinstall the OS I have to set a bootable media.

NB: I already tried to make a bootable usb using TransMac with the InstallESD.dmg extracted from the Install OS X Marvericks.app but it doesn't work


Can I launch the installation directly from the Windows partition?
Is there any other way to make a bootable media?
As far as I know, you can't "launch" the installation directly from Windows. From there, you have two choices :


Normally, you should have a recovery partition on your Mac. Boot on this one, you'll be able to repair or reinstall OS X.
Create a bootable USB stick with OS X on it to reinstall your main partition. There are lots of tutorials that show how to create a bootable OS X USB stick on Google, it's pretty easy to find. 


Good luck