Conclusion
By attempting to boot into Safe mode, macOS will scan and repair any errors it finds on the disk. Safe mode boots your operating system with only the bare minimum it needs to run. No third party kernel extensions will boot, login items are skipped, and it empties certain caches. To boot into Safe mode: Turn your computer off, then press and hold the Shift key while your computer boots. If your computer has hung on boot, shut it down by holding the power button until the machine switches off around 10 seconds first.
How to Exit Single User Mode on a Mac
Should your computer boot properly, try restarting and booting as normal. You can then restart into Safe mode, remove the problem extension, and try again. Every Mac ships with Recovery mode, which lives on a separate partition on the startup disk. Later you also may want to restore it.
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Here's how to do both. Keep in mind this requires an internet connection and will take a lot longer, since macOS needs to download the image first.
macbook - I am unable to boot my mac in El Capitan and Single User mode - Ask Different
Select it from the list on the left, then click First Aid followed by Run. File system consistency check or fsck for short is a longstanding Unix tool for checking and fixing drive problems. Depending on the size of your volume, the type of drive you have installed, and the potential problem, fsck can take a while to complete. Patience and persistence is important if you want to fix your drive this way.
Gonna be a bad weekend, as this is not what a Mac is supposed to look like during boot. This boot mode allows you to make changes to shared user resources. You can type fsck -fy to run fsck. If you have a firmware password set on your Mac, Single User mode is not available to you.
OS X El Capitan / Sierra / High Sierra Hanging on Boot [FIXED]
If you interrupt the process while it is making changes to your drive, you may incur data loss. Read More. It's called Apple Service Diagnostic, and we'll show you how to get it and use it for best results.
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Read More to learn as much information about the problem as you can. Specify your external drive and start the process. This may take a while, and if the drive is damaged it may even fail entirely. To do so:. That means it will copy all directories within the directory you specify, then the directories within them, and so on. The first path is the location of the files you want to copy.
Press Enter to continue. Now you have the privileges to remove the files from drive. Run the command below, and it will remove the necessary file that can recognize your Mac are not booted at the first time when Mac restarts.
But once it is done, you can enter " reboot " to restart Mac, and OS X would think that it is the first time you boot the currently installed OS X. So you can create new admin account during the setup process. Note: Don't worry about your data on Mac would be lost or damaged.
Start up your Mac in single-user mode or verbose mode
It would just go through the system setup process again. Nothing would be changed on Mac besides the new settings you make in the process.
Mac restarts and displays the Welcome to Mac screen. Follow the wizard to choose your location, set your keyboard, choose the way to transfer data, set your Apple ID and agree the terms and conditions. At last, you will be asked to create an account for mac. Default name for this account has been shown there.