macos big sur cannot be installed on macintosh hd reddit

MacOS Big Sur successfully installed and running triple boot on single hard internal SSD with rEFInd on Microsoft Surface Pro 4. Cannot advance to High Sierra or Catalina due to the same missing firmware partition error. On the non-working MacBook Pro it needs to go into the left-hand side port that is nearest the back of the Mac. Connect the two Macs using a USB-C cable. My diskutil list information is as follows: /dev/disk0 (external, physical):Ģ: Apple_HFS Macintosh HD 959.2 GB disk0s2ģ: Apple_Boot Recovery HD 650.0 MB disk0s3 Install Apple Configurator 2 on your working Mac. Your download should resume this time it may go faster as some components have been downloaded already.

Check for the update and click the upgrade button. Disconnect from the internet (or turn off the Wi-Fi) 2. Before that I got the message that I am missing a firmware partition. So how to fix macOS Big Sur stuck on 12.18 GB 1. Now in recovery mode long the top of the screen. When you turn your computer on - keep an Option key pressed. I got this error after doing diskutil verify disk. Replies Install Big Sur onto an external drive. I am looking to update to Catalina but I get the error message in the title of this post. I am currently on a Early 2015 Macbook Pro on El Capitan 10.11.6. Click once on Macintosh HD and choose File > Get Info to see how much free space there is.

Macos big sur cannot be installed on macintosh hd reddit