2 Replies
      Latest reply: Jun 14, 2015 11:03 PM by lefrax0412 RSS
      lefrax0412 Level 1 Level 1 (10 points)

        Hiya,

         

        clean Install from Recovery partition does not work for me. Actually, as soon as OS X Installer tries to validate through AppStore, I will always get a user/password mismatch even if both are correct - and were used to dl the dev prev. Someone else having the same issue or a solution?

         

        Kind regrads,

        Enrico

        • Re: Clean Install
          tywebbooooo Level 3 Level 3 (205 points)

          You could do it from a bootable usb instead.

          To make a bootable usb:

           

          Format an 8 GB USB drive which should be called Untitled and formatted as Mac OS Extended (Journaled). The installer should be called Install OS X 10.11 Developer Beta.app and should be in your Applications folder.

           

          Run this in terminal and wait about 20 minutes:

           

          sudo /Applications/Install\ OS\ X \ 10.11\ Developer\ Beta.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install\ OS\ X\ 10.11\ Developer\ Beta.app --nointeraction

           

          You can boot up from it by selecting it from the startup manager you get when starting your computer and holding down the option key.

           

          If the installation creates a core storage logical volume you can revert it to get partitions back to normal by running these 2 commands in terminal.

           

          diskutil cs list

           

          and then

           

          diskutil coreStorage revert lvUUID

           

          where lvUUID is the last lvUUID reported by the previous Terminal command.

           

          Then restart for everything to get back to normal after you have run these commands in Terminal.