daashanghai.blogg.se - Mac os x mountain lion bootable iso download

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. How to Create a Bootable Mac OS X Lion Installation USB Drive 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.You can now quit Terminal and eject the volume.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. When Terminal says that it's done, the volume will have the same name as the installer you downloaded, such as Install macOS Monterey.

After the volume is erased, you may see an alert that Terminal would like to access files on a removable volume.Terminal shows the progress as the volume is erased. When prompted, type Y to confirm that you want to erase the volume, then press Return.Terminal doesn't show any characters as you type. When prompted, type your administrator password.If the volume has a different name, replace MyVolume in the command with the name of your volume. Each command assumes that the installer is in your Applications folder, and MyVolume is the name of the USB flash drive or other volume you're using. Type or paste one of the commands below into Terminal, then press Return to enter the command.Open Terminal, which is in the Utilities folder of your Applications folder.Plug in the USB flash drive or other volume that you're using for the bootable installer.