Once that is finished, you can eject the BaseSystem image, it is no longer needed (if you chose to "Erase destination", your installer image will now be called 'Mac OS X Base System'. Use the 'Restore' feature in Disk Utility. The entire contents of the base system needs to be copied to your 'LionInstaller' partition. One of these hidden files is BaseSystem.dmg which will be used to boot the system. The Lion installer image contains some hidden files, to get to them you'll need to use the terminal or in Pathfinder (which is easier for newbies) choose 'Show Invisible Files' from the View menu. It's inside the 'Install Mac OS X Lion' app in the SharedSupport folder. Partitions: Single partition - Apple Partition Map.
Using Disk Utility, create a new partition to install Lion from Step 1: Create a new partition for the installer (I suggest you use an 8Gb usb stick). Not too sure here but I'm assuming Lion installed from a modded external drive will boot ok after the second part of the Lion Installer has completed, if it doesn't boot from an external Snow Leopard installation (or Snow Leopard Partition on your hdd) and makes the changes above.Ī few peeps have been having some issues following the Video guide and steps needed posted previously, here's a step-by-step guide for installing Lion on any coreduo mac upgraded with a core2duo:. Boot the machine using the install disc you just created and Install Lion.ĥ. Add the following platform string to the list already there 'Mac-F4208EC8' and then save the file.Ĥ. Go into /System/Library/CoreServices of the install disc you just created and open the 'ist' in with vi/nano in the terminal (using sudo so you can save it).ģ. Restore the DMG to your install disc target.Ģ. If you want to boot the Lion DVD dmg image from a Flash drive or external HDD then you must to do the following:-ġ. Save the file and reboot into Lovely Lion (it really, really needs a Magic Mouse or TrackPad to use the new features properly - a standard mouse doesn't do it justice). Open the 'ist' file with sudo permissions in nano/vi and add the following string 'Mac-F4208EC8'.Ħ. Boot back into Snow Leopard and Navigate to '/System/Library/CoreServices' on the Lion partition.ĥ. The machine will reboot and Lion installer will go through phase 2 of the install (but it will refuse to boot at this point).Ĥ. Mount the Lion DMG and run the Lion Installer (make sure you select the Lion Partition you just made).ģ.
If you already have 10.6.6 installed create a new partition for Lion via disk utility.Ģ. The following will be of use to people who have upgraded their old Mac Mini's from a Core-Solo or Core-Duo to a Core2Duo and want to run Lion.ġ.
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