Is there a complete step on how can I resolve this issue of being unable to erase the partition? My aim is to be able to install MacOS High Sierra in clean mode. I was also able to create a USB installer for this and the MacOS Sierra can still be used without issue.
Is there a way to completely remove the partition, and do a clean install? I also was not able to unmount the partition. When I click show Details: ErasingĪPFS Volume File Content An internal error has occurred. When I try to delete the partition and always get the following error message:Įrasing "Macintosh HD" and Creating "Macintosh HD" Erase process hasįailed. Most common cause of this error is due to the invalid time in your mac. So, I went ahead and clicked First Aid scan the disk for error for the Macintosh HD partition but it also failed with an internal error. SOLVED This copy of the Install macOS High Sierra.app application is damaged. I spent a couple of hours trying to find a solution and one of them said that I need to delete the Macintosh partition or check on the partition disk for error first. Try running thisĪpplication again (I tried this more than 5 times and still get the From here, double-click the Terminal application to open it up. Like any other application, you can find it by going into Finder, navigating to the Applications folder, and then into the Utilities folder.
Now I want to clean install the existing OS using macOS High Sierra v10.13.6, I went to the recovery mode, connect to wifi and click on Reinstall but the issue that I encountered is whenever I try to install it I get the following error:Īn error occurred while preparing the installation. Step 1 Using the macOS Terminal To access the command line interface on your Mac, you’ll use the Terminal application provided by macOS.
I have an iMac 18,2 with the current operating macOS Sierra.
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