Can You Boot From Dmg

Bootable USB Installers for OS X Mavericks, Yosemite, El Capitan, and Sierra

Jan 03, 2020  Once you formatted the USB flash drive to a GPT partition, you can use the instructions mentioned above to use TransMac to create a bootable media, but this time skip the steps 5 through 9, and continue on step 10.


First, review this introductory article: Create a bootable installer for macOS. Second, see this How To outline for creating a bootable El Capitan installer. Simply replace the Terminal command with the one from the preceding article by copying it into the Terminal window. You will need an 8GB or larger USB flash drive that has been partitioned and formatted for use with OS X.

Feb 18, 2012  DMG supports compression (zip/bzip2) and checksums, and it can be used for read/write images. VirtualBox supports a subset of read-only DMG files for CD/DVD images, but not for virtual hard disks. I personally like the DMG format because unlike ISOs, the. Jan 19, 2018 Make A Bootable Installer for macOS via DiskMaker X or Install Disk Creator. If you think it is too much trouble to use Terminal to make a bootable installer on a USB drive, you can use tools like DiskMaker X, Install Disk Creator. Both the tools can make an install drive for macOS Sierra, OS X El Capitan, OS X Yosemite and more.


Drive Partition and Format

  1. Open Disk Utility in the Utilities' folder.
  2. After Disk Utility loads select the drive (out-dented entry with the mfg.'s ID and size) from the side list.
  3. Click on the Erase tab in the Disk Utility toolbar. Name the drive, 'MyVolume'. <---- IMPORTANT!
  4. In the drop down panel set the partition scheme to GUID. Set the Format type to Mac OS Extended (Journaled.)
  5. Click on the Apply button and wait for the Done button to activate. When it does click on it.
  6. Quit Disk Utility.
Can You Boot From Dmg


Create Installer

Open the Terminal in the Utilities' folder. Choose the appropriate command line (in red) depending upon what OS X installer you want. Paste that entire command line from below at the Terminal's prompt:

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Command for macOS High Sierra:

sudo /Applications/Install macOS High Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install macOS High Sierra.app

Command for macOS Sierra:

sudo /Applications/Install macOS Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install macOS Sierra.app

Command for El Capitan:

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sudo /Applications/Install OS X El Capitan.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install OS X El Capitan.app

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Command for Yosemite:

sudo /Applications/Install OS X Yosemite.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install OS X Yosemite.app

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Command for Mavericks:

sudo /Applications/Install OS X Mavericks.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install OS X Mavericks.app

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Can You Boot From Media Creation Tool

Press RETURN. You will be asked for your admin password. It will not echo to the Terminal window. Then press RETURN again. Wait for the return of the Terminal prompt signifying the process has completed. It takes quite some time to finish. Be patient.

Sep 13, 2018 1:16 PM

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