Wipe SSD and reinstall?

Discussion in 'OS X Yosemite (10.10)' started by Poly, Oct 16, 2014.

  1. Poly macrumors 6502

    Joined:
    Jul 14, 2013
    Location:
    Germany
    #1
    How do i 100% reinstall my Mac? I currently run 10.9 on my Air from 2011. But i want to install 10.10 from scratch.
     
  2. thisisdallas macrumors regular

    thisisdallas

    Joined:
    Sep 26, 2012
    Location:
    Indiana
    #2
    I second this!
    If someone could post a nice little guide I'd love you forever and give you imaginary cookies :)
     
  3. Rob.G macrumors 6502

    Rob.G

    Joined:
    Jan 17, 2010
    Location:
    NW Oregon
    #3
    Do you have an external drive? If so, download Carbon Copy Cloner and make a backup of your existing drive to the external. Then you can boot off the external drive, go go Disk Utility, wipe your internal drive, then go to the App Store and pick the wiped drive for the install.

    At least that's how I figure I'll do it...

    Rob
     
  4. Poly thread starter macrumors 6502

    Joined:
    Jul 14, 2013
    Location:
    Germany
    #4
    Is there no such thing as like with Windows? Like put in a USB with the new OS image, pick the USB stick as boot device and launch the image file...?
     
  5. Rob.G macrumors 6502

    Rob.G

    Joined:
    Jan 17, 2010
    Location:
    NW Oregon
    #5
    That might be possible; I dunno. I'll admit I haven't ever bothered doing a fresh install of OSX. I want to do it on my Mini... it's had a few weird issues ever since I went to Mavericks, so figured a fresh one is worthwhile.

    I'm curious if I can just upgrade my laptop, which has Public Beta 6 on it.

    Rob
     
  6. definitive macrumors 68000

    definitive

    Joined:
    Aug 4, 2008
    #6
    if you have everything you need backed up, then download yosemite, run lion disk maker from http://liondiskmaker.com (will probably be updated to final version soon) on a 8gig usb flash drive. once that's done, restart the system, and hold option key before the chime sound. select the usb flash drive with the installer, go to disk utility, delete the partition with the old os, go back through menus, and install the new one.
     
  7. macgeek88 Suspended

    Joined:
    Jan 16, 2013
    Location:
    Illinois
    #7
    I use the createinstallmedia Terminal method with an 8Gig flash drive and then boot using the option key and choose the USB drive and then open disk utility, erase the Macintosh HD, and then proceed to close that and run the installer. Never had any problem. And I never upgrade an OS...I always backup and wipe the drive. I find it runs a lot better. Same with iOS, I always do a restore from scratch with every .0 release.
     
  8. Poly thread starter macrumors 6502

    Joined:
    Jul 14, 2013
    Location:
    Germany
    #9
    Please elaborate :)
    Is there a in depth tutorial? Especially how do i get the 10.10 file on the USB stick and what Terminal commands to use?
     
  9. definitive macrumors 68000

    definitive

    Joined:
    Aug 4, 2008
    #10
    if i read that correctly, the instructions tell you to install yosemite twice: once to upgrade over your current os, and then to redownload and reinstall from the recovery menu. that's gonna take several hours....
     
  10. greenmeanie macrumors 6502a

    greenmeanie

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    AmigaWarez
  11. macgeek88 Suspended

    Joined:
    Jan 16, 2013
    Location:
    Illinois
    #12
    The tutorial link that greenmeanie posted is what I use....Just download Yosemite from MAS, and then run the tutorial and boot from the USB drive using Option Key held down at startup.

    Then go into disk utility, click on Macintosh HD and then the erase tab, and erase. Then close it and run the installer.
     
  12. HenryDJP macrumors 603

    Joined:
    Nov 25, 2012
    Location:
    United States
    #13
    Well technically that's for Mavericks but I guess it's possible to do the same with Yosemite? I'm not sure.
     
  13. macgeek88 Suspended

    Joined:
    Jan 16, 2013
    Location:
    Illinois
    #14
    I did it for the public beta with 0 issues.
     
  14. HenryDJP macrumors 603

    Joined:
    Nov 25, 2012
    Location:
    United States
    #15
    AWESOME! Thank you. I'm getting my iMac ready for a full erase and install of Yosemite. Just wanted to make sense of all this before I do it. :)
     
  15. yanki01 macrumors 68040

    yanki01

    Joined:
    Feb 28, 2009
    Location:
    Texas
    #16
    ironically, i'll be installing a new SSD on my mid 09 MBP later today. is the USB drive still the way to go for a new SSD.
     

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