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Model A1297 Unibody: Early 2009, Mid 2009, Mid 2010, Early 2011 & Late 2011

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There is no HD to boot from?

Recently I was forced to reformat the HD(I did it with 7pass) and then I reinstalled OS Sierra using bootable USB. The installation process went normally until the end where it was interrupted(or maybe it was finished but I didn’t see) and after that my computer got stuck. I forcefully turned off and then restarted computer by holding option key there was only bootable USB recognized. What happened to my Macintosh 750GB HD which was formated and repaired with success? I thought the OS is installed and I should be able to boot from it. Any ideas what I should do now?

Update (10/06/2018)

Thanks for your reply! I figured it out. I went with internet recovery which installed old OSX Lion with factory settings. Then I rebooted again in recovery mode and used Time Machine to update to the OSX Sierra and the system I previously had. Hopefully it will work, it is in process since there are lots of files to install.

Update (10/06/2018)

After reinstalling from Time Machine while it was over it restarted and started booting up but the loading line is full and nothing happens, like it is stuck. Any Solutions?

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Now I can't even repeat the process of using USB bootable to get into disk Utilyties and try again. When pressing cmd+R when booting it takes me to internet recovery immediately. Is that a way to go?

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@mislav Can you try a reinstall of macOS via recovery mode?

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@mislav Sounds like a plan! Good luck!

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Are you using the original hard drive or have you upgraded it?

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I was using the original HD drive...all is working fine now...1. installed Os Lion through internet recovery 2. downloaded and installed OS Sierra 3. Used Migrant assistant to move the files from the backup to the computer

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Mislav sarà eternamente grato.
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