![mac internal hard drive unmounted mac internal hard drive unmounted](https://ugetfix.com/wp-content/uploads/articles/askit/how-to-fix-couldnt-unmount-disk-error-on-mac-disk-utility_en.jpg)
![mac internal hard drive unmounted mac internal hard drive unmounted](https://www.cultofmac.com/ezoimgfmt/cdn.cultofmac.com/wp-content/uploads/2020/02/unmount-disk-utility.jpg)
You can use a command like fdisk -l or sfdisk -l to list the partitions. If you used Disk Utility from macOS Recovery, you can now restart your Mac: choose Apple menu > Restart. If the drives are unmounted there are several things you can do. The order of repair in this example was Macintosh HD - Data, then Macintosh HD, then Container disk4, then APPLE SSD.
#Mac internal hard drive unmounted how to
Keep moving up the list, running First Aid for each volume on the disk, then each container on the disk, then finally the disk itself. Answer (1 of 2): You should reinstall macOS by following the prompts that are part of the procedure provided by Apple for doing so: How to reinstall macOS from macOS.
#Mac internal hard drive unmounted password
If you're asked for a password to unlock the disk, enter your administrator password.Īfter Disk Utility is done checking the volume, select the next item above it in the sidebar, then run First Aid again. If you are having trouble with the Disk Utility App for erasing or formatting a drive, you can try using the Command Line in Terminal to erase or format a dr.If the button is dimmed and you can't click it, skip this step for the disk, container, or volume you selected.If there is no Run button, click the Repair Disk button instead.
![mac internal hard drive unmounted mac internal hard drive unmounted](https://i.stack.imgur.com/aTnZv.jpg)
In this example, the last volume on the disk is Macintosh HD - Data.Ĭlick Run to begin checking the selected volume for errors. Create a mountpoint in your home directory (in this case named usb) and use it as a mountpoint. When I restart the computer + option it does not find the internal hard drive. I used to have the 'Macintosh HD' disk icon and my external hard drive icon on the desktop. In order to mount a USB drive, use the mount command and specify the device name you identified in the first section. I am running off of a bootable external drive right now and somehow (or someone) unmounted my internal hard drive. Feel free to grab a cup of coffee or take a shower, because it will take a few minutes. macOS Sierra will now begin installing on your external device. Enter your system password and hit Enter. Choose your newly formatted external device and click Install. For each disk that you're repairing, start by selecting the last volume on that disk, then click the First Aid button or tab. Mounting USB drives is not different from mounting normal hard drives on your computer. On the next screen, click Show All Disks.