If you want to do a clean installation of Lion or you want to install it on a Hackintosh , you'll need to install it on some sort of physical media. Note that the Lion installer deletes itself if you upgrade, so if you want to do this, you have to do it before you update your computer to Lion. You can always re-download Lion after the fact, but geez, who wants to do that? Once you've got it on your system, here's what you do:. You'll not only be able to install Lion from this drive, but you'll also be able to use Disk Utiltiy, recover from a Time Machine backup, and do everything else you could do with the old installation DVDs.
So, you've decided to download an older version of Mac OS X. There are Note, that to install the Lion or Mountain Lion, your Mac needs to be running Locate exuqojuqeqyx.tk disk image file — this is the file you need to. It's called Install Mac OS X exuqojuqeqyx.tk and it should have been In Disk Utility, select exuqojuqeqyx.tk in the sidebar, and then click the Open.
Note that when you install Lion, it'll create a recovery partition with all these features anyway, so you don't need the DVD unless you're doing a clean install. You can use Disk Utility's Restore screen to create a bootable flash drive or hard drive.
When prompted, insert a blank DVD a single-layer disc should work, although you can use a dual-layer disc instead , choose your burn options, and click Burn. So if you plan to use that installer on other Macs, or to create a bootable disc or drive as explained here, be sure to copy the installer to another drive—or at least move it out of the Applications folder—before you install.
If you don't, you'll have to re-download the entire thing from the Mac App Store. If you've already installed Lion—so it's too late to move the installer—you've may find that the Mac App Store claims that Lion is already installed and prevents you from downloading it again.
As I explained in our main Lion-installation article, you should be able to force a re-download using one of the following three tricks: One of these three procedures should get rid of the "Installed" status for Lion and let you download it. Apple appears to have recently made this process easier: If you previously purchased Lion from the Mac App Store, the button next to Lion in the Store should simply say Download—click it to re-download the installer.
Here's our guide to installing Lion, from the best way to get your Mac ready, to undertaking the Apple bills Lion as the easiest-to-install version of OS X yet, and that may be true. But there are If your Mac was released after Lion, it's not quite as easy to make a bootable Lion install disc or Some Mac users prefer to do a "clean install" of each major new version of OS X, erasing their One of the most significant new features of Lion is that it lets you boot your Lion-equipped Mac Apple has released a simple utility for creating a bootable Lion Recovery volume from any external How to create a bootable macOS Mojave installer drive.
How to create a bootable macOS High Sierra installer drive. How to install Windows on your Mac using Boot Camp.
I found that if you hold down the Option key and click on the installed button you can actually redownload. Only Help Unmount Eject Reveal. Normally, it is assumed that updating OS is a one-way road. Jeff says: The GM is 11A Thank you. Dana says:
This is key. The install starts automatically -- you need to stop it. Just leave the screen up or minimize it, and follow these instructions carefully. Right-click and select Show Package Contents. Open it by double-clicking the Contents folder. Inside the Contents folder, find the SharedSupport folder. Double-click it to open it. This is the OS X Lion installer disk image you need to burn to disc. Righ-click it and select copy "InstallESD.
Then paste it to the Desktop. Do not drag this file. You risk damaging the OS X Lion install application. No dragging. Pasting only.
Open the Applications folder in Finder. Double-click on the Utilities folder to open it. Open the Disk Utility by double-clicking its icon. Now move the ESDInstall.
Make sure you drop it right into the left-most windowpane inside of Disk Utility. In Disk Utility, click the Burn icon.
sensigara.tk A prompt appears, asking you to insert the destination disc for the installESD. Insert a blank DVD into the drive.
Hit Burn. The process burns the InstallESD.
All you have to do is wait for your new OS X Lion install disk to pop out. Always proceed with caution, knowing that a clean install is just that -- it completely erases all drive contents. Store your Lion install DVD somewhere safe. That's all there is to it! Email me with tips and comments. I'd love to hear from you. IT Strategy. Digital Business.