I followed the instructions as suggested by apple service centre(telephone).Command + R to getting into recovery modei then tried to reinstall MAc os from disk utility in boot.-> it then took me to the page install high sierra. and mic dont respond sometimes.so then i though to roll back/downgrade to el captain. and other hardware problems are like camera hardware is not discovered on this OS HS.

(dont have any backup or time machine- complete erase all data and installed mac os hs).It's clean and complete os without any any installation problems.after a two days of usage i found my mac is working very slow, sometimes stuck on loading os. i did clean install successfully without any errors. Elcaptain(max supported OS).recently i though to upgrade high sierra 10.13.6(unsupported) using patch tool. hello,i am using macbook 13' early 2009 model mb5.2 version. Thank you.Startup disk not recognised, unable to access boot or recovery mode however tried on macbook 5.2 early 2009 model. 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. 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. 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 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. I have an iMac 18,2 with the current operating macOS Sierra.

Mac clean install high sierra