- #Create bootable usb mac os x lion dmg file mac os x
- #Create bootable usb mac os x lion dmg file install
- #Create bootable usb mac os x lion dmg file password
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#Create bootable usb mac os x lion dmg file password
Your Mac will ask for your password and after that it will write the image to your USB drive. Make sure “ Erase destination” is checked and click the “ Restore” button. You’ll also notice that the “ Restore” button in the lower right corner now becomes active (clickable). The name of the partition (see “ 2” below) should appear. Now drag the partition of the flash drive onto the input field of the “ Destination” until a green “ +” appears. To create a bootable hard drive or flash drive In Disk Utility, select InstallESD.dmg in the sidebar, and then click the Open button in the toolbar. You’ll see something similar to the image below just under point “ 1“. Next select the “ Restore” section and click the “ Image…” button next to the “ Source” input field.Ī window will open in which you have to select the previously copied or moved “ InstallESD.dmg“, and then click “ Open“. Open Disk Utility (you can find in the “ Utilities” folder of your “ Applications” folder, or you can use Spotlight to find it).įirst we must find our USB drive on the left side of the Disk Utility window – make very sure that you’re picking the right device, since the drive will be completely erased! In my example I’m using a 64Gb Kanguru eFlash (very fast USB pen drives and great customer service!).įirst select the correct drive and partition. As you can see in the image below I selected a partition of the 64.39 Gb drive. You can restore from a Time Machine backup, reinstall OS X Lion over the Internet from Apple's servers or use Disk Utility to repair or erase a disk.CAUTIONThe drive will be completely wiped in this process! Hold down Command-R during startup to boot into the Recovery HD, or hold down the Option key during startup and select Recovery HD. OS X Lion includes a built-in set of tools for repairing your Mac in the Recovery HD, a new feature that lets you repair disks or reinstall OS X Lion without a physical disc.
#Create bootable usb mac os x lion dmg file install
It is also useful if you need to install Lion again, though there are already recovery features built into Lion.
#Create bootable usb mac os x lion dmg file mac os x
You can now take the install USB stick to another Mac you own or control and install Mac OS X Lion without needing to download the 3.76GB file again. button and navigate to where you copied the InstallESD.dmg file.įor Destination drag the USB stick from the drive menu to the Destination field. The reason that a 4GB stick is too small is that if you format the USB stick as Mac OS Extended then you only have 3.66GB of space which isn't enough for the Lion install dmg file.įor the Source click the Image. I created these screenshots using a 4GB stick, however this is too small and you will need a bigger stick for it to work. This application will allow you to burn the. Open Applications -> Utilities -> Disk Utility Navigate to.Ĭopy the InstallESD.dmg file to another location such as your Documents or the Desktop. Right click and click and Show Package Contents Locate the install file in Applications, or right click the Install Icon in the Dock. If the Lion installer starts after downloading, quit the install programme. The key is to download the Lion installer, but do NOT install Lion! This will also allow you to then install Lion on the other Macs you own or control without downloading the 3.76GB file each time. If you try this process with a 4GB USB stick it won't work, even though the installation file is only 3.76GB. You will need an USB stick bigger than 4GB, so either an 8GB or 16GB stick.
Fortunately it is pretty simple to image the installation application to an USB stick. However if you have slow broadband or a bandwidth cap, downloading each time can be problematic. The Mac App Store makes this very easy to do, on each computer you own or control you can go to the Mac App Store and download Lion again for no extra charge. (i) to download, install, use and run for personal, non-commercial use, one (1) copy of the Apple Spftware directly on each Apple-branded computer running Mac OS X Snow Leopard or Mac OS X Snow Leopard Server ("Mac Computer") that you own or control Under the terms of the licence for personal, non-commercial use only you are able: Lion was released on the 20th Jully 2011 as a paid download from the Mac App Store.
How do I create an install USB Stick from the Lion download?
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