The operation can’t be completed because you don’t have the necessary permission

Discussion in 'macOS' started by KuhlTime, Apr 9, 2016.

  1. KuhlTime macrumors newbie

    KuhlTime

    Joined:
    Apr 9, 2016
    Location:
    Düsseldorf
    #1
    Hi there,
    i have troubles replacing two stock OS X images with some i downloaded. When draging both images to the folder a (Blocked) Sign appears near the cursor. I have seen that i need to open up the Information panel and change the permission of 'everyone' to 'read & write'. But then this sheet pops up:
    MacBookAir.png
    ...anybody knows how i can get those images replaced with my downloaded ones?

    I have even tried replacing them with the sudo cmd in the Terminal.

    Thanks ;)
     
  2. bcave098 macrumors 6502

    bcave098

    Joined:
    Sep 6, 2015
    Location:
    Northern British Columbia
    #2
    Sounds like it could be System Integrity Protection? Make sure it's disabled before you mess around with system files.

    To disable it, restart in recovery mode (hold ⌘+R), open Terminal, and use this command:
    Code:
    csrutil disable
    (Be sure to re-enable it when you're done)
     
  3. old-wiz macrumors G3

    Joined:
    Mar 26, 2008
    Location:
    West Suburban Boston Ma
    #3
    It is a bad idea to go monkeying around with permissions if you do not understand *NIX file systems; it is very easy to wind up with a system that will not boot.
     
  4. bols59 macrumors newbie

    bols59

    Joined:
    Jan 8, 2014
    Location:
    Pacifique du Nord
    #4
    Two thumbs up. Now, instead of monkeying around with permissions, what steps are there to take? I'm presently working on a file that tells me I don't have permissions.
     

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