editing com.apple.Boot.plist to boot Snow Leopard in 64 bit

Discussion in 'macOS' started by jamesrp, Aug 29, 2009.

  1. jamesrp macrumors newbie

    Aug 29, 2009
    Firstly, my com.apple.Boot.plist contains the following

    bplist00“VKernel\Kernel Flags[mach_kernel[arch=x86_64
    Any info I've found on booting to 64 bit tells me to find

    <key>Kernel Flags

    and change it to

    <key>Kernel Flags</key>


    Is something wrong with my file? What does your com.apple.Boot.plist contain?
  2. Lordedmond macrumors regular

    Oct 24, 2008
    Tilchestune UK
    no need to mess with that file
    open terminal

    and type

    sudo nvram boot-args="arch=x86_64"

    note the punctuation type it ALL in

    hit enter type in your password


    if it plays up just reset the pram P R alt cmd and restart wait for four boings and you will be back as you was
  3. isson macrumors newbie

    Dec 23, 2009
    i have same problem ..how can i fix this..:confused:
  4. Mumford macrumors regular


    Oct 8, 2006
    Altadena, CA
    Your com.apple.Boot.plist is in binary format. You can convert it to text with the following command:
    $ sudo plutil -convert xml1 /Library/Preferences/SystemConfiguration/com.apple.Boot.plist
    .plist files can safely exist in either format, the OS loads them faster if they're in binary. There's no reason to convert it, though. Just follow Lordedmond's instructions.

Share This Page