You can now quit Terminal and eject the volume.
The instructions for a firmware update utility say to use Unetbootin on MacOS to write an iso-file to a FAT32 formatted (erased) USB stick. Sudo /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia -volume /Volumes/ MyVolume -applicationpath /Applications/Install\ OS\ X\ El\ Capitan.app Goal is updating a NVMe SSD firmware on a Mac without optical drive via USB stick that should contain a minimal Linux, flasher and payload. Sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia -volume /Volumes/ MyVolume Sudo /Applications/Install\ macOS\ Mojave.app/Contents/Resources/createinstallmedia -volume /Volumes/ MyVolume Sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia -volume /Volumes/ MyVolume
Sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia -volume /Volumes/ MyVolume Select the volume containing the bootable installer, then click Continue. Turn on your Mac and continue to hold the power button until you see the startup options window, which will show your bootable volumes. Sudo /Applications/Install\ macOS\ Monterey.app/Contents/Resources/createinstallmedia -volume /Volumes/ MyVolume Plug the bootable installer into a Mac that is connected to the internet and compatible with the version of macOS youre installing. If it has a different name, replace MyVolume in these commands with the name of your volume. These assume that the installer is in your Applications folder and MyVolume is the name of the USB flash drive or other volume you're using.
Use DiskMaker X to create the bootable USB deviceĮ) you can use the USB device to boot your Friend's Mac and install Mountain Lion. Now that you've completed the bootable clone process and successfully upgraded your Mac disk to a new HDD/SSD. Shut down Mac computer and install new SSD drive to Mac computer > Reboot Mac computer again. It can also be a regular USB external disk. Replace old Mac drive with new HDD or SSD: Right-click on the old Mac hard drive in Finder > Select Eject Only Macintosh HD 4. If using a Flash Drive, it should be at least 8GB in size.
Now you can redeem the Mountain Lion redemption code and download Mountain Lion which will be signed using your Friends Apple ID.ĭ) Create a bootable installer on an external USB device. Also the redemption code will be mailed to your Friends Apple ID associated email address.Ĭ) Using another Mac, start Applications -> App Store, and change the login account to your Friends Apple ID (this is very important). You need to do this using your Friends Apple ID, as everything will be signed with that Apple ID going forward, and you do not want someone else having signed it, as it will just cause problems in the future. The sequence of events is you go to the on-line Apple web site and buy a redemption code for Mountain Lion. So buying a digital version of Mountain Lion would not help?Ī) your friends Mac MUST be able to run Mountain Lionī) you would need to use another Mac to download Mountain Lion, as you need to have the Applications -> App Store to do the download.