- MAKE A BOOTABLE DVD FOR MAC OS X MOUNTAIN LION HOW TO
- MAKE A BOOTABLE DVD FOR MAC OS X MOUNTAIN LION INSTALL
Paste the following into Terminal followed by the Return key. Launch Terminal from the Utilities Folder.Ĥ. (Name is Very Important, creating a partition is very simple just click the + (plus) at lower left in the Partition window)ģ. Create an 8 GB GUID partition with Disk Utility on any hard drive and name it Untitled.
MAKE A BOOTABLE DVD FOR MAC OS X MOUNTAIN LION INSTALL
Install OS X Mavericks.app must be located in your Applications folder.Ģ. ***(failure does not occur on usb or drive partition installers, only DVD and only with Mavericks)ġ.
This much simpler method IS the solution to that 1% failure. The 1% ***failure is, the DVD installer would not create a Recovery Partition and no solution was ever found. There is a Terminal method for creating an installer DVD for Mavericks and it works, but only works 99%. Mavericks is a unique story because it had a unique flaw. The CD, DVD, and Blu Ray have saved me time, money, and heartbreak.ĪLL versions of OSX that I use have Bootable DVD installers including High Sierra. I have had drive failures of ALL kinds, "all" means ALL. (mine are over 30 years old with zero failures) The optical disc remains the most reliable solution to long term data storage. The trick is to replace only the second occurrence, ie, use the createinstallmedia executable from the El Capitan installer.Those who demand use of of flash drives are not technically competent. Replacing both occurrences 'El\ Capitan' with 'Mountain\ Lion' gives the expected message that createinstallmedia is not found inside the Mountain Lion installer (because it didn't exist back then when the installer was created). Sudo /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia -volume /Volumes/Untitled -applicationpath /Applications/Install\ OS\ X\ El\ Capitan.app -nointeraction Instructions to create a bootable El Capitan (or Mavericks or Yosemite) installer on a computer running El Capitan all seem to rely on a small (command line) executable called createinstallmedia that is part of the OS X Install application (/Contents/Resources), even the GUI options like Disk Maker X seem to rely on it. Unfortunately the result doesn't appear to be bootable. These instructions cannot be followed to the letter anymore since Disk Utility has changed significantly in El Capitan but there still is a restore feature. Instructions to create a bootable Mountain Lion installer (on a computer running Mountain Lion) usually use the Restore feature in Disk Utility to 'restore' the bootable image inside the installer (InstallESD.dmg) to a USB stick (where 'restore' means cloning the disk image to the USB stick and making it bootable).
MAKE A BOOTABLE DVD FOR MAC OS X MOUNTAIN LION HOW TO
But I have not found any instructions of how to create a bootable Mountain Lion installer under El Capitan. There are also instructions on how to create a bootable Mavericks or Yosemite installer under El Capitan. There are many instructions on how create a bootable Mountain Lion installer on a computer running Mountain Lion, a Mavericks installer on a Mavericks system up to an El Capitan installer under El Capitan. Trying to, you get a message that the copy of "Install OS X" is too old to be opened on this version of OS X. You need to make a bootable installer because the ML installer itself won't run under El Capitan. This requires that you have both the El Capitan installer as well as the Mountain Lion installer on your computer (at the paths indicated above, adjust the paths in the command if necessary) and that you have an HFS+ volume with the name 'Untitled' mounted (adjust the name in the command if necessary). Sudo /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia -volume /Volumes/Untitled -applicationpath /Applications/Install\ OS\ X\ Mountain\ Lion.app -nointeraction If you ever wondered how to create a bootable OS X Mountain Lion installer under El Capitan, here is the Terminal command to do so:
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