Mac startup commands not working2/13/2023 ![]() If the exit code is zero, then everything is back to normal and the issue is resolved. ![]() By doing so you'll let Apple's built-in disk management utility fix the problem. To do that, simply select the internal drive listed in the utility and run First Aid. How to Address the Broken EFI Partition Issueįirst things first, use Disk Utility to verify and repair the drive. In some cases, the Mac won't show any signs of trouble until you want to install a new version of macOS, and when that moment comes the attempt to upgrade will be unsuccessful with various errors to deal with. That means computer startup issues, so be prepared as this could be one of the reasons for your Mac refusing to boot. This means that if there are issues with the EFI partition, then problems arise. Symptoms of a Broken EFI PartitionĪs you may already know, the EFI System Partition or ESP is a special partition on a Mac from which the initial system boot-time device drivers can be loaded and that was created as a BIOS replacement. Read on if you have a broken EFI partition to find out how to fix it. ![]() While the reason for a broken EFI partition can vary, the symptoms don't and neither does the way to fix it. It may be the result of an unsuccessful attempt to install Windows via Boot Camp or of simply not paying attention during the installation process, but a Mac’s Extensible Firmware Interface partition can go belly up.
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