Can you upgrade from leopard to lion

Get a lifetime subscription to VPN Unlimited for all your devices with a one-time purchase from the new Gadget Hacks Shop , and watch Hulu or Netflix without regional restrictions, increase security when browsing on public networks, and more. When I boot using the flash disk I created, I just get an "X" icon in a circle and it keeps loading forever When I try to do this, I get an error box saying that "You don't own this file and you don't have permission to write it.

Is there any way around this? Thanks so much for your help! I copied the plish and pasted it to my desktop, I opened the plish and then changed the After that I copied the changed plish into where the original plish was.

You want to overwrite it!!!!! I used this method last week and I was able to successfully update a my early macbook that had been sitting in storage for years from In order to edit SystemVersion. I had to completely reformat my drive as the Mountain Lion installer would not install over an existing OSX Partition. I used a Gparted live cd to make a seperate partition to backup my important files. I just did this on a friends computer and it worked perfectly.

Didn't need to wipe the drive either. Log in Register. Search titles only. Search Advanced search…. New posts. Log in. For a better experience, please enable JavaScript in your browser before proceeding.

Can I upgrade from OS X HHSymons New member. Joined Feb 12, Messages 3 Reaction score 0 Points 1. Is is possible to upgrade to Mountain Lion Last edited by a moderator: Feb 12, Raz0rEdge Well-known member Staff member.

Boot your Leopard Mac from that new Lion install drive. After your Mac restarts, installation finishes, and you proceed through the setup process, watch for the Transfer Information To This Mac screen. But how does the installer know your drive contains Leopard and not Snow Leopard? The Lion installer—which will still need to be run on a Mac running Snow Leopard or Lion—will then install Lion over Leopard without the slightest complaint. Using a text editor that lets you enter an admin-user name and password to edit system-level files—such as the non-Mac App Store version of TextWrangler —open SystemVersion.

Change that number to You could instead boot your Leopard Mac from an external drive containing Snow Leopard or Lion, and then run the Lion installer from there.