A possible fix for those who have DP4 installation errors...

Discussion in 'Mac OS X Lion (10.7)' started by d-boy86, Jun 8, 2011.

  1. d-boy86 macrumors member

    Jan 19, 2011
    So as I was trying to install DP4 last night I noticed that it will lag at a certain point, then a yellow arrow would appear stating that I should reboot and retry the installation. I tried repairing my hard disk using the Disk Utility within the Applications\Utilities folder assuming it would fix it but the same error occured when I tried to install Lion afterwards.

    Instead, I popped in my SL installation disk and booted up from it and used the Disk Utility from there. Tried reinstalling Lion and it worked perfectly.

    Not sure if anyone has tried this method, because they're so many threads on the forum talking about it. Give it a shot and let me know if it works for you as well.
  2. ErikGrim macrumors 68040


    Jun 20, 2003
    Brisbane, Australia
    I restarted and restored the lion image to an external HD, booted from that, repaired and off we went. Installing took forever though.
  3. wPhilipsen macrumors newbie

    Jun 9, 2011
    Denmark, Sonderborg
    Target disk mode

    Hi guys

    What I did was to boot my iMac running Lion preview 3 in target disk mode, and connecting it to my MacBook running Snow.
    Then fried up disk utilitie and repaired the disk, now I'm running preview 4 without problems;)
  4. john.burn macrumors member

    Feb 8, 2007
    Hi guys,

    If' it's not already very obvious, then make sure you're using repair disk and not repair disk permissions - the latter won't hurt of course but the thing that finally got DP4 to install on my Mac Pro 1.1 was repair disk... I booted up off a Lion USB installation and ran it from there - SL on USB or DVD would also work of course to get into disk utility.

    Might not be that obvious to everyone.


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