You don't need a bootable installer to upgrade macOS or reinstall macOS, but it can be useful when you want to install on multiple computers without downloading the installer each time. These advanced steps are primarily for system administrators and others who are familiar with the command line.
Make Bootable Usb Drive Mac Os X Mountain Lion.These are the defaults, so just confirm the settings. On the right, in the Erase tab, choose to format the drive as Mac OS Extended (Journaled). To do this, launch Disk Utility and choose the destination drive in the drive list (left column). You can also sign in to your Mac as the administrator to create the bootable drive.įirst, you must partition and erase the drive so that it can be bootable. You can change it back to a standard user when you're finished.
If it isn't, go to Users & Groups in System Preferences and assign Administrator to your user account. Your Mac user account must be an Administrator.A flash drive, external hard disk, SD card, or the like, with at least 8GB of capacity.So you have to quit the installer once it appears in order to keep this file. After you upgrade to Yosemite, this file is deleted. The 5GB OS X Yosemite installer app that downloads into your Applications folder when you first install it via the Mac App Store.Here's how to make one using Apple's built-in boot drive creation tool. But what if you need to partition the hard drive, wiping the recovery partition? You need a bootable OS X Yosemite installer. How do you erase your Mac hard drive and install OS X Yosemite without a startup disk? Normally the answer would be to boot into recovery mode.
0 kommentar(er)
