Bootable DVD for Sierra installer

Discussion in 'macOS Sierra (10.12)' started by tywebb13, Sep 21, 2016.

  1. tywebb13 macrumors 68000

    Joined:
    Apr 21, 2012
    #1
    First I should point out that this is a very geeky thing and a dvd will boot much slower than a usb. So if you want a faster boot it would be better to make a bootable usb instead for which instructions are here: http://forums.macrumors.com/threads...ler-for-sierra-gm-and-public-release.1992501/

    Nevertheless some people want to have a bootable dvd too.

    To do this copy and paste these into terminal to make the bootable iso file (assuming you have already downloaded Sierra to your Applications folder via the mac app store):

    hdiutil attach /Applications/Install\ macOS\ Sierra.app/Contents/SharedSupport/InstallESD.dmg -noverify -nobrowse -mountpoint /Volumes/install_app

    hdiutil create -o /tmp/Sierra.cdr -size 7500m -layout SPUD -fs HFS+J

    hdiutil attach /tmp/Sierra.cdr.dmg -noverify -nobrowse -mountpoint /Volumes/install_build

    asr restore -source /Volumes/install_app/BaseSystem.dmg -target /Volumes/install_build -noprompt -noverify -erase

    rm /Volumes/OS\ X\ Base\ System/System/Installation/Packages

    cp -rp /Volumes/install_app/Packages /Volumes/OS\ X\ Base\ System/System/Installation/

    cp -rp /Volumes/install_app/BaseSystem.chunklist /Volumes/OS\ X\ Base\ System/BaseSystem.chunklist

    cp -rp /Volumes/install_app/BaseSystem.dmg /Volumes/OS\ X\ Base\ System/BaseSystem.dmg

    hdiutil detach /Volumes/install_app

    hdiutil detach /Volumes/OS\ X\ Base\ System/

    hdiutil convert /tmp/Sierra.cdr.dmg -format UDTO -o /tmp/Sierra.iso

    mv /tmp/Sierra.iso.cdr ~/Desktop/Sierra.iso

    A bootable iso file called Sierra.iso will then appear on your desktop and you can use this to burn it to a dual layer dvd:

    sudo drutil burn /Users/YOURNAME/Desktop/Sierra.iso

    where you replace "YOURNAME" with the username for the account you are logged into at the time.

    and then boot to startup manager with option key to select the dvd.
     
  2. SignedAdam macrumors newbie

    SignedAdam

    Joined:
    Sep 30, 2016
    Location:
    London
    #2
    @tywebb13 - Thank you, I can confirm that your Guilde works, I was able to boot the 8gb DVD, and install macOS Sierra (16A323) to a Disk, and then boot from that Disk, in to macOS sierra on a (iMac 27-inch late 2009)
     

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