Buterbaugh Gerizineink1996 – March 08, 2022

Free Os X Lion 10.7.0 Download For Bootable Usb

Brand a Bootable mac USB Installer from a USB Flash Bulldoze

I'm going to walk through the procedure of making a bootable Mac Bone X x.vii Panthera leo installation drive out of whatever USB flash drive cardinal. This is similar to the process of making a bootable Lion installer DVD, but I adopt a USB flash drive considering information technology's faster, smaller, and I take a Mac Book Air so an installation DVD isn't too useful for me.
This is pretty easy to do, only I have made the walk through as simple as possible with plenty of screenshots, so just follow forth the instructions.

Requirements
A Mac with Mac OS Ten x.6.8 so you tin download and access Panthera leo
8GB+ USB wink key drive
Download Mac Bone X Lion from the Mac App Store
OR Download Directly
Got all that? Practiced, let'southward proceed.
We're going to assume you already accept Mac OS X Lion downloaded from the App Store, if y'all don't, do that first. If you have anything stored on the USB flash bulldoze you're going to lose information technology, so exist prepared for that and back information technology upwardly.
First we are going to locate the Lion InstallESD.dmg file and mount it:
Navigate to your applications binder
Right-click (or control-click) on the "Install Mac OS 10 Lion.app" and select "Show Packet Contents"
Open the "Contents" directory and then become into "SharedSupport"

Double-click on "InstallESD.dmg" to mount the Lion deejay paradigm onto your Mac desktop, it volition show up like the image below

Side by side, we format the USB flash drive, this volition become the bootable Lion installer:
Plug the USB flash bulldoze into your Mac
Launch Disk Utility
Select your USB drive from the left side of Deejay Utility, so click on the "Erase" tab
Choose "Mac Os Extended (Journaled)" equally the Format, and proper noun the USB fundamental what y'all desire
Click on "Erase" to format the USB drive

Now that the USB flash drive has been formatted to the appropriate filesystem, nosotros are going torestore the previously mounted InstallESD.dmg file to the blank USB bulldoze.
Right-click on the USB drive in Disk Utility and select "Restore"

Now you need to set the source disk for the restore. This is why we mounted the InstallESD.dmg file earlier, because nosotros can only drag and drop the "Mac Bone 10 Install ESD" image into the "Source" – if you didn't mount the image, you can manually locate and select the image file yourself by clicking on "Image"

Elevate the formatted USB key to the "Destination" and cheque "Erase destination"
Be sure you have the right things in the right places, you don't desire to format the wrong drive – then click on "Restore"
Now y'all expect while the Lion DMG is restored to the USB drive, this tin take a while and yous'll come across a screen like this:

When this is finished, your bootable Mac OS X King of beasts installer drive is complete! You lot can now boot any Panthera leo compatible Mac with the USB drive, just plug the USB key in, concur down Option during initial kick, and select the drive. Hither's what you'll run across upon booting with the drive connected:

From hither you can format, restore from backups, or reinstall Lion. If you're wondering about the other drives pictured, it's because I am dual booting Lion and Snow Leopard, and "Recovery Hard disk drive" is the small recovery partition that Lion installs on its own. This procedure should piece of work with a standard external USB hard bulldoze as well, only I have non tried that specifically.
Advantages to making a bootable Lion USB drive:
You tin can perform a clean OS X Lion install with the USB drive
The Panthera leo USB primal drive becomes a recovery disk with access to Disk Utility, re-installation, access Time Machine backups, and everything the Recovery Hard disk drive partition does
You will take external media to recover and reinstall Lion in the issue of total drive failure or some other catastrophe
Enjoy Mac OS 10 10.7 Panthera leo!