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#INSTALL DISK CREATOR FOR 10.7.5 DOENT WORK HOW TO#
#INSTALL DISK CREATOR FOR 10.7.5 DOENT WORK MAC OS X#
#INSTALL DISK CREATOR FOR 10.7.5 DOENT WORK INSTALL#
#INSTALL DISK CREATOR FOR 10.7.5 DOENT WORK DOWNLOAD#

#INSTALL DISK CREATOR FOR 10.7.5 DOENT WORK INSTALL#

You will have external media to recover and reinstall Lion in the event of total drive failure or some other catastropheĪfter doing regular Lion install (on top of SL) my machine jst bogged and gave program errors, etc which is likely from years of formatting adding stuff, etc….but it is slogging though with Lion.

The Lion USB key drive becomes a recovery disk with access to Disk Utility, re-installation, access Time Machine backups, and everything the Recovery HD partition does.

You can perform a clean OS X Lion install with the USB drive.

This process should work with a standard external USB hard drive too, but I have not tried that specifically.Īdvantages to making a bootable Lion USB drive: If you’re wondering about the other drives pictured, it’s because I am dual booting Lion and Snow Leopard, and “Recovery HD” is the small recovery partition that Lion installs on its own.

Here’s what you’ll see upon booting with the drive connected:įrom here you can format, restore from backups, or reinstall Lion.

#INSTALL DISK CREATOR FOR 10.7.5 DOENT WORK MAC OS X#

When this is finished, your bootable Mac OS X Lion installer drive is complete! You can now boot any Lion compatible Mac with the USB drive, just plug the USB key in, hold down Option during initial boot, and select the drive. Now you wait while the Lion DMG is restored to the USB drive, this can take a while and you’ll see a screen like this: Be sure you have the right things in the right places, you don’t want to format the wrong drive – then click on “Restore”.Drag the formatted USB key to the “Destination” and check “Erase destination”.This is why we mounted the InstallESD.dmg file earlier, because we can just drag and drop the “Mac OS X 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” Now you need to set the source disk for the restore.Right-click on the USB drive in Disk Utility and select “Restore”.Now that the USB flash drive has been formatted to the appropriate filesystem, we are going to restore the previously mounted InstallESD.dmg file to the blank USB drive. Click on “Erase” to format the USB drive.Choose “Mac OS Extended (Journaled)” as the Format, and name the USB key what you want.Select your USB drive from the left side of Disk Utility, then click on the “Erase” tab.Next, we format the USB flash drive, this will become the bootable Lion installer: Double-click on “InstallESD.dmg” to mount the Lion disk image onto your Mac desktop, it will show up like the image below.Open the “Contents” directory and then go into “SharedSupport”.Right-click (or control-click) on the “Install Mac OS X Lion.app” and select “Show Package Contents”.If you have anything stored on the USB flash drive you’re going to lose it, so be prepared for that and back it up.įirst we are going to locate the Lion InstallESD.dmg file and mount it: We’re going to assume you already have Mac OS X Lion downloaded from the App Store, if you don’t, do that first.

#INSTALL DISK CREATOR FOR 10.7.5 DOENT WORK HOW TO#

How to Create a Bootable Mac OS X Lion Installation USB Drive

#INSTALL DISK CREATOR FOR 10.7.5 DOENT WORK DOWNLOAD#

Download Mac OS X Lion from the Mac App Store ($29.99).

8GB+ USB flash key drive, these are cheap and ubiquitous on.A Mac with Mac OS X 10.6.8 so you can download and access Lion.This is pretty easy to do, but I have made the walkthrough as simple as possible with plenty of screenshots, so just follow along the instructions.