HT205252: If an app won't run or install on your Mac after you upgrade OS X

Learn about If an app won't run or install on your Mac after you upgrade OS X
W1ld
Level 1 (8 points)
Mac OS X

Q: This is not a supported method of installing the operating system.

So this might be a big problem.

 

In disk utility i accidentally erased a drive or superdrive or the second disk where the GB are.

 

So after rebooting it always takes me to the OS X Utilites and trying to find many ways to recover but none work

 

The time machine that is in there dosent have a backup.

 

Then trying to Reinstall OS X it always says "This is not a supported system method of installing the operating system. Please run Install OS X 10.10.app that you downloaded from the App Store."

 

So as I said I keep restarting it keeps on going to the same place.

 

Also trying to Partition or erase the top disk it keeps saying "Disk Erase failed. Disk Erase failed with th  error: Couldn't unmout disk.

 

Doing repairs or verify seems no good use so I'm stuck in the OS X utilies

 

If there's a way to solve this it will be very thankful if someone can help

 

Edit: Also I don't have a startup disk and the backup or time machine keeps stuck on refreshing or searching.

MacBook Pro, OS X Yosemite (10.10), null

Posted on Jul 23, 2016 5:47 PM

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W1ld

Q: This is not a supported method of installing the operating system.

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  • Helpful answers

  • by Eric Root,

    Eric Root Eric Root Jul 24, 2016 2:01 PM in response to W1ld
    Level 9 (74,268 points)
    iTunes
    Jul 24, 2016 2:01 PM in response to W1ld

    Try booting into Internet Recovery (command - option/alt - R) and see if you can reinstall from there. Please note, this takes a very long time to boot.

  • by W1ld,

    W1ld W1ld Jul 24, 2016 3:23 PM in response to Eric Root
    Level 1 (8 points)
    Mac OS X
    Jul 24, 2016 3:23 PM in response to Eric Root

    Hi

     

    So i might changed the laptop for more reasoning so like my Mac is the old 2001 ones where the power button is on the very right side so it's not connected to the keyboards

     

     

    So when I tried to do the internet recovery i try to on and hold the buttons it does the normal apple logo and goes to utility.

     

    if that helps anything.

  • by W1ld,

    W1ld W1ld Jul 24, 2016 5:43 PM in response to Eric Root
    Level 1 (8 points)
    Mac OS X
    Jul 24, 2016 5:43 PM in response to Eric Root

    UPDATE

    Okay now when it lets me to go to passing the installing OS X after putting in my Apple ID it says "This item is temporarily unavailable. Try again later" any help?