Making a bootable Yosemite USB in Recovery Mode?

Discussion in 'OS X Yosemite (10.10)' started by DaniHungary, Dec 15, 2014.

  1. DaniHungary macrumors newbie

    Joined:
    Jul 25, 2014
    #1
    Hey guys!

    I have the following problem. Last day, all of a sudden my Macbook froze, and when I turn it on, there is a grey circle with a shlash in it, and won't boot. I figured that my OS X Yosemite must be corrupted somehow, because at the time I was messing with Unibeast and stuffs like that. Shouldn't be hardware issue, I can access everything in Recovery Mode. Nevermind that, now I want to reinstall Yosemite, and I need a bootable USB to do so, but I can't access my computer to make one.
    Here is what I tried:
    - Installing from recovery mode, from online, once it started, but i mistakenly unplugged it from the power source, so it did shut down. Since that it says "Can't install it, restart the application and try again" or smth like that.
    - Making one on Windows via PowerISO and TransMac. None of those 2 wanted to boot from. I formatted the USB to HFS+, that didn't help either, and when i format it in GUID in Recovery mode, Windows, and TransMac, and nothing can see the USB. Except Mac, in Recovery Mode.
    - Making one via Recovery Mode's disk utility, but I can't access invisible files, when I am looking for source, and the boot image on the InstallESD.dmg is invisible.
    - Making an InstallESD.dmg boot usb (i dont know if it's even would work...) but when i set the source, it says resource is busy.
    - Making one with the createinstall terminal command in Recovery terminal, but I have the Yosemite installer in hungarian name, and can't write "é" in terminal, so it gives me sudo can't find command message.

    What should I try? I have two 8gb pendrive, a windows and a mac in Recovery Mode. No one with Mac, or Yosemite installer nearby, so I can solve it only on my own.:mad:

    Thank You guys in advance.
     
  2. b0fh666 macrumors 6502a

    b0fh666

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    south
    #2
    do you have non-apple SSD drive and trim-enabler installed?
     
  3. DaniHungary thread starter macrumors newbie

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    Jul 25, 2014
    #3
    No, i dont have any of those.
     
  4. DaniHungary thread starter macrumors newbie

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    Jul 25, 2014
  5. satcomer macrumors 603

    satcomer

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    #6
    Then you did one of the steps incorrectly. Plus did you try the free DiskMaker X?
     
  6. DaniHungary thread starter macrumors newbie

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    Jul 25, 2014
    #7
    Please read again the first post then.
    I CANT ACCESS MY OSX, ONLY RECOVERY MODE. So i cant install that either...
     
  7. satcomer macrumors 603

    satcomer

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    #8
  8. DaniHungary thread starter macrumors newbie

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    Jul 25, 2014
    #9
  9. satcomer macrumors 603

    satcomer

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    Feb 19, 2008
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    #10
    Sounds like the hard drive went south without you (it died). You will need to repce it. Try to find a friend that could make you a Yosemtie USB thumb drive for you to load a new hard drive into your Mac Book.
     
  10. DaniHungary thread starter macrumors newbie

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    Jul 25, 2014
    #11
    But in recovery mode i checked the hard drive and its fine. Now i just want to create a bootable usb, in recovery mode. And i dont know how.
     
  11. Ulenspiegel, Dec 15, 2014
    Last edited: Dec 15, 2014

    Ulenspiegel macrumors 68030

    Ulenspiegel

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    #12
    Dani, you can type "é" in Terminal: Option + "e" (hold both, then release) and now type again "e".

    Sok szerencsét! :)
     
  12. DaniHungary thread starter macrumors newbie

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    Jul 25, 2014
    #13

    Sikerült máshogy, de nagyon szépen köszönöm a segítséget! :)
     
  13. Aukai macrumors newbie

    Aukai

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    Aug 21, 2016
    #14
    How do you fix it?


     
  14. Tech198, Sep 1, 2016
    Last edited: Sep 1, 2016

    Tech198 macrumors G4

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    Location:
    Australia, Perth
    #15
    Boot to internet recovery, not standard recovery and install OS X

    Not sure u can create usb from recovery because it needs to see and point to app installer...

    Internet recovery would be better
     

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