Unix Server Tech Knowledge Base

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====== DMG Files ======

DMG files are Apple's equivalent of ISO's. Wikipedia explains at [[https://en.wikipedia.org/wiki/Apple_Disk_Image]]

===== Burn DMG to USB Drive =====

If you have a Mac, //Disk Utilities// will do this for you. For Windows and Linux, you need some additional software. I have **not** verified the Windows tool, DMG Editor, but an article I read says it is ok. The following is taken from [[https://www.androidphonesoft.com/resources/burn-dmg-to-usb-drive.html]]

From Linux, however, you can do the following. You must be the root user.
  - Install dmg2img<code bash>apt install dmg2img</code>
  - Convert dmg file to iso<code bash>dmg2img filename.dmg</code>
  - Determine your usb drive and unmount if necessary<code bash>lsblk</code>
  - Copy the .img file created to your usb drive (assumes sdh from previous step)<code bash>dd if=./filename.img of=/dev/sdh bs=4M</code>
  - Your machine will go into lala land, with no visible indication anything is happening. Just be patient. When done, be sure all data is written with <code bash>sync</code>
  - Remove USB Drive from computer after you get command line back

If the DMG was bootable, you now have a bootable USB.

===== Links =====
  - https://www.androidphonesoft.com/resources/burn-dmg-to-usb-drive.html
  - https://en.wikipedia.org/wiki/Apple_Disk_Image
  - https://www.lifewire.com/dmg-file-2620719