Few days ago, a new Lion install method was introduced from Tonymac. It’s a program called UniBeast, that creates a bootloader + Lion installer all in one USB thumb drive on OSX 10.6.8 or above. (guys, it’s obvious that softwares aren’t free and the cheapest way to get Lion officially is through the Mac Appstore)
http://www.tonymacx86.com/viewforum.php?f=125 (Tonymac download link)
Before we get into UniBeast, I want to explain how to re-download Lion from the Appstore for the ones who already installed it.
If you launch Appstore and see the ‘Purchased’ tab on the upper menu, ‘Install MAC OS X Lion.app’ will be shown as ‘Installed’ and you wont be able to download anymore. but, if you click ‘Purchased’ while holding the <alt option> key on your keyboard, you’ll see the button changed to a darker gray color and you’ll be able to download it.
After downloading, check if the Install MAC OS X Lion.app file is in the Application folder, but do not run it.
Before we try out the new UniBeast, the first thing to do is preparing a USB thumb drive. (should be 8GB or larger) Then press <cmd + spacebar> to bring up spotlight and type ‘disk utitlity’ to launch it. If the disk utility is ready, go to the Erase tab and clean format it to Mac OS Extended (Journaled). If the formatting is finished go to Partition tab and follow the next orders.
First, choose the thumb drive you want to use on the side bar. Then set the Partition Layout to 1 Partition. After that (important!) Click on ‘Options’ and choose MBR table. If everything is setup, click ‘Apply’. (you can name the thumb drive anything you want)
Finally, it’s time to run UniBeast.
I don’t have much to say about the installing process, but you should be careful when you choose the disk partition for installing UniBeast. The boot system in that partition wont be available anymore if you over right it.
If the UniBeast installation is completed, reboot and check if it’s working.
Press F12 and choose USB-HDD.
You can assume that the progress was successful if you see this symbol.
Now, boot to the Lion installer and Install Mac OS 10.7. After the Installation is finished you’ll have to boot through this USB again to boot into the installed Lion, and then run MultiBeast.
I think we can say good-bye to the SL Install disk at this point. The people who doesn’t want to dedicate there whole 8GB memory for this, can use the ‘Installer partition restore’ method as well for clean installation.