XavierGrant

Q: Getting an unknown error when trying to upgrade to El Capitan.  Is the site down?

I'm trying to upgrade to El Capitan and I log in with my Apple ID and it immediately errors out with an Unknown Error.  It looks like the upgrade server may be unavailable right now?? Sunday, 13 Mar 5:30 p.m. EDT.  Is the server down??

MacBook Pro with Retina display, OS X Yosemite (10.10.5)

Posted on Mar 13, 2016 2:35 PM

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Q: Getting an unknown error when trying to upgrade to El Capitan.  Is the site down?

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  • by Csound1,

    Csound1 Csound1 Mar 13, 2016 2:36 PM in response to XavierGrant
    Level 9 (50,417 points)
    Desktops
    Mar 13, 2016 2:36 PM in response to XavierGrant

    Login to what?

  • by Linc Davis,

    Linc Davis Linc Davis Mar 13, 2016 3:07 PM in response to XavierGrant
    Level 10 (207,963 points)
    Applications
    Mar 13, 2016 3:07 PM in response to XavierGrant

    If you've enabled two-step verification for your Apple ID, you must generate an application-specific password and enter it when you sign in to the App Store.

    If you've ruled out the password as the cause of the problem, please back up all data and see below.

    Triple-click anywhere in the line below on this page to select it:

    /Library/Preferences/SystemConfiguration

    Right-click or control-click the line and select

              Services ▹ Open

    from the contextual menu.* A folder named "SystemConfiguration" should open. Inside it there should be a file with this name:

              NetworkInterfaces.plist

    Move that file to the Trash. You may be prompted for your administrator login password. Restart the computer and test.

    If there's no change, restore the item you deleted from a backup, overwriting the one that may have been created in its place. Otherwise, you may need to recreate some of your settings in the Network preference pane.

    *If you don't see the contextual menu item, copy the selected text to the Clipboard by pressing the key combination command-C. In the Finder, select

              Go ▹ Go to Folder...

    from the menu bar and paste into the box that opens by pressing command-V. You may not see what you pasted because a line break is included. Press return.

    Credit for this solution to ASC member luis.pinho.

  • by XavierGrant,

    XavierGrant XavierGrant Mar 13, 2016 3:47 PM in response to Linc Davis
    Level 1 (0 points)
    Mar 13, 2016 3:47 PM in response to Linc Davis

    I'm backing up now & will try your fix.  Thanks for the quick reply.  What is the theory of the fix?

  • by XavierGrant,

    XavierGrant XavierGrant Mar 13, 2016 3:48 PM in response to Csound1
    Level 1 (0 points)
    Mar 13, 2016 3:48 PM in response to Csound1

    When you try to upgrade to El Capitan, the system wants you to log in with your Apple ID and password.  That's the point at which the upgrade request fails.

  • by Csound1,

    Csound1 Csound1 Mar 13, 2016 4:06 PM in response to XavierGrant
    Level 9 (50,417 points)
    Desktops
    Mar 13, 2016 4:06 PM in response to XavierGrant

    XavierGrant wrote:

     

    When you try to upgrade to El Capitan, the system wants you to log in with your Apple ID and password.  That's the point at which the upgrade request fails.

    Did you enter the ID and password