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Download mac os x lion usb thumb drive how to#
Download mac os x lion usb thumb drive install#
Download mac os x lion usb thumb drive download#

Wait for the return of the Terminal prompt signifying the process has completed. You will be asked for your admin password. Sudo /Applications/Install\ OS\ X\ Mavericks.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolume -applicationpath /Applications/Install\ OS\ X\ Mavericks.app Sudo /Applications/Install\ OS\ X\ Yosemite.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolume -applicationpath /Applications/Install\ OS\ X\ Yosemite.app Sudo /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolume -applicationpath /Applications/Install\ OS\ X\ El\ Capitan.app Sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolume -applicationpath /Applications/Install\ macOS\ Sierra.app Sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolume -applicationpath /Applications/Install\ macOS\ High\ Sierra.app Paste that entire command line from below at the Terminal's prompt:

Choose the appropriate command line (in red) depending upon what OS X installer you want. Open the Terminal in the Utilities' folder.

Click on the Apply button and wait for the Done button to activate.

The Mac OS X USB installer repairs the Mac’s hard drive in the case of emergency.

Download mac os x lion usb thumb drive install#

Set the Format type to Mac OS Extended (Journaled.) This Mac OS X Flash drive can be used to install Mac OS X efficiently, even on a Mac without an internet connection.

In the drop down panel set the partition scheme to GUID.

Click on the Erase tab in the Disk Utility toolbar.

After Disk Utility loads select the drive (out-dented entry with the mfg.'s ID and size) from the side list.

Open Disk Utility in the Utilities' folder.

You will need an 8GB or larger USB flash drive that has been partitioned and formatted for use with OS X. Simply replace the Terminal command with the one from the preceding article by copying it into the Terminal window.

Download mac os x lion usb thumb drive how to#

Second, see this How To outline for creating a bootable El Capitan installer. Bootable USB Installers for OS X Mavericks, Yosemite, El Capitan, and Sierraįirst, review this introductory article: Create a bootable installer for macOS. How to Make a Lion Bootable USB flash drive shows how to do this for Lion, but is directly applicable to Mountain Lion.ī. You can also create another flash drive to use for High Sierra. But if you have a copy of the Mountain Lion installer you most certainly can put it on a USB flash drive. (Do keep in mind that there are a lot of counterfeits sold by third parties on Ebay and Amazon so it's equally important to buy your USB flash drive new from a reputable source.Unless you have downloaded Mountain Lion from the App Store in the past, then you cannot re-download it. If all else fails, try a different name-brand flash drive of at least 8 gigabytes or greater in size. Some users have problems creating a successful bootable USB flash drive because they attempt to follow Apple's instructions on older versions of Mac OS X that require Disk Utility, not the Terminal window "createinstallmedia" command, to create a bootable USB flash drive. If you still can't boot from the USB flash drive, verify that you created the Mac OS installer on the USB flash drive while working in the same (or as close to) current Mac OS as you intend to write to the USB flash drive. If you can't see it, reset the PRAM and try again. On the machine you wish to install on, you can hold down the Option (ALT) key to select the boot drive, select your installer.

Eject the drive if you're ready to remove the USB Drive and install.

In addition to the lower price, Apple also incentivized users to buy Lion from the Mac App Store buy giving it a months head start over the USB thumb drive.

Download mac os x lion usb thumb drive download#

Deselect the check box ignore ownership OS X Lion is also available for a lower price as a digital download from the Mac App Store.

Click the padlock icon to unlock administrator options.

In the info window, expand the Sharing & Permissions: section.

Mounting the USB flash drive on the desktop, right click and select "Get Info".

The "missing step", after ensuring the USB flash drive is formatted correctly, is to ignore ownership For this reason, you will need to enable it before/after completing the process described by Apple, MacWorld and others using the "createinstallmedia" command in the Terminal window.

Complicating matters, the USB flash drive default may disable boot support. Most of the guides, including Apple's own support doc on how to create a bootable Mac OS installer on USB - as of this date - fail to mention the ownership step.įirst and foremost, the USB flash drive must support ownership functionality. It may be that boot-up from the USB flash drive is "prohibited" because your USB flash drive requires adjustment to the "ownership" settings.