Snow lep install now hard drive wont boot

Discussion in 'iMac' started by mattbough, Sep 19, 2011.

  1. mattbough macrumors newbie

    Joined:
    Sep 19, 2011
    #1
    Just tried to update my mac to snow lep and then all seemed well it said that it installed correctly after doing a full format clean install, i thought i was in luck when i booted it up nothing happend juts a white screen and then it booted from the hard drive, since tehn i pressed the options button and realised that the hard drive was not availible to boot from, although after that i then put the install disk in and it all seemed to be installed fine on the hard drive any idea about how to make the hard drive bootable again?
     
  2. mattbough thread starter macrumors newbie

    Joined:
    Sep 19, 2011
  3. tom vilsack macrumors 68000

    tom vilsack

    Joined:
    Nov 20, 2010
    Location:
    ladner cdn
    #3
    just did same thing a couple days ago...

    -imac intel 2.0...i did a full erase (writing zeros) single partition,retail sl dvd

    without knowing your comp ill ask these...

    -retail dvd? not someone elses grey recovery disks?
    -intel imac?
    -before install it showed the drive you formated and partitioned?

    have you tryed resetting pram?
     
  4. mattbough thread starter macrumors newbie

    Joined:
    Sep 19, 2011
    #4
    yes its an intel mac with retail disks and w/e no idea what pram is, if you would please explain, and i formatted and partitioned before installing with 2 parts to a guid thing lol im not good with macs only just started lol
     
  5. tom vilsack macrumors 68000

    tom vilsack

    Joined:
    Nov 20, 2010
    Location:
    ladner cdn
    #5
    humm you partitioned drive into two parts,,perhaps the mac is booting to the non snowleopard part?

    to select a drive at boot...turn on imac,press option key before "chime" sound,select drive to boot from

    to reset you pram...turn on imac,press Command-Option-P-R keys before "chime" sound...continue to hold down these 4 keys until you hear second "chime" release and pram will be reset
     
  6. mattbough thread starter macrumors newbie

    Joined:
    Sep 19, 2011

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