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--- unix:apple_osx:reinstall [2020/10/12 01:33] – rodolico
+++ unix:apple_osx:reinstall [2020/10/29 01:05] – rodolico
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 ====== Reinstall OS X ======
+===== The Problem =====
 Recently (Fall 2020) I was able to purchase an old MacBook Air for my daughter to use. It is an older device, but working just fine for what she wanted. The original owner had not removed his account, and I had no admin password, so I decided to just do a reinstall. Very bad move on my part.
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 Rebooted the system, pressed Apple-R to go into recovery mode, and told the system to reinstall itself. After formatting the drive and starting the install, I get a timer stating it is going to take -2,393,938,938 and 8 minutes. A couple of minutes later, a message appears stating it can not download additional components needed to install OS X. Basically, the same issue described at [[https://www.ifixit.com/Answers/View/601830/re+installing+OSX+problems]].
-Finally got it installed. I had a friend who had a full system backup who was able to take that image and copy it to the MacBook, and it worked just fine. Then, my daughter tried to install some software which corrupted the machine, so she brought it back to me to repair.
+===== The First Solution =====
+Finally got it installed. I had a friend who had a full system backup who was able to take that image and copy it to the MacBook, and it worked just fine.
+===== Second Problem =====
+Then, my daughter tried to install some software which corrupted the machine, so she brought it back to me to repair.
 Not being an total idiot, I had made a full TimeMachine backup before I gave the machine to my daughter, so I thought "no problem, I'll just recover from TimeMachine". Didn't work. I made the backup to an SMB network share, and the old Mac just couldn't seem to want to use it. Various failures. So, I copied the DMG to a HPFS formatted external drive that I had purchased for her (and, forgot the ._ file the first couple of times), but it still wouldn't recover.
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 days after the attempt to reinstall, that is where I stand. More later.
+===== The final Solution =====
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   * Restore OS from Time Machine backup [[https://support.apple.com/en-us/HT202406]]
   * Mac Startup Key Combinations [[https://support.apple.com/en-us/HT201255]]
+  * Mojave Installer Image [[https://itunes.apple.com/us/app/macos-mojave/id1398502828?ls=1&mt=12]]
+  * Creating a bootable USB [[https://www.macworld.com/article/3284378/how-to-create-a-bootable-macos-mojave-installer-drive.html]]