![]() ![]() Most of them where able to either erase or re-install the system, but I'm at a dead end, as I don't have any of these options available. Repair volumes, then containers, then disks. In general, you can just open Disk Utility from the Utilities folder of your Applications folder. ![]() ![]() I've researched on the internet and a lot of people made this mistake. How to repair a Mac disk with Disk Utility. This disk is also locked, so I cannot re-install High Sierra (see picture 3).Īs the OS X Base System is the only thing left in the computer, every time I start it up, it does directly into the Recovery menu. In the Disk Utility, the options for erase, restore and unmount are all unavailable (see picture 2), I imagine that's because you normally cannot do any of these on the OS X Base System disk. This new disk image cannot be partitioned: when I hit the + sign in the partition screen, nothing happens. In the top left corner of the window, click View and choose View all devices. Go to Applications > Utilities and double-click Disk Utility to launch it. It’s important to point out the file extension method typically works fine on a Mac but if you want to use the resulting image to burn a bootable disk, or burn it through Windows or Linux, you’ll probably want to go with the more complete method shown below. To boot in Recovery Mode, restart your Mac and hold down Command-R. Hi! I had problems with my iMac and tried to erase the OS and re-install, but I did something wrong and now all I have is asingle partition with OS X Base System that is the size of my HD (1 TB), see picture 1. Convert DMG to CDR or ISO with Disk Utility. ![]()
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