how to make dmg to bootable mac usb key command line

It also avoids the need of downloading commercial software from the internet. It's not that hard to make a bootable image and far more secure to DIY. You can’t set this to be the default boot with System Integrity Protection but for this use, bless should still work. (Note - the manual page for bless may be moved, but the command still works on Mojave to bless an alternate boot. before restoring an IMG to the USB drive.Ģ) bless the USB drive by selecting it in Startup Disk or using the command line. Watch for restore errors - you may need the Disk Utility menu command Images -> Scan images for restore. I usually first create a IMG of the DVD, but it should work in one shot. (Migration Assistant, Disk Utility, Network Utility, Terminal (that auto mounts your internal drive as needed), Firmware Utility and Password Reset Utility.ġ) Use Disk Utility backup/restore to image whatever Snow Leopard DVD you prefer onto a HFS+ formatted GUID USB drive. Really - try the above if you can, but as an alternative, here is a simple recipe for making a USB version of the OS X installer + associated tools. With OS X El Capitan, Yosemite, or Mavericks, you can use a USB flash drive or other removable media as a startup disk from which to install OS X.

- Create a bootable installer for OS X.

Now you should be able to proceed with the 'createinstallmedia' instructions in the original Apple article (assuming Apple fixed the Sierra installer).If Apple's supported method of using the createinstallmedia tool doesn't work, you can try other options below: If you need to use the latter command, then after it completes drag the actual installer from '/Applications/macos' to the main '/Applications' folder.

If there are no errors and you don't see the El Capitan installer in the Applications folder, then you may need to add another folder to the end of the command like '/Applications/macos': sudo pkgutil -expand /Volumes/InstallMacOSX/InstallMacOSX.pkg /Applications/macos

pkg file): sudo pkgutil -expand /Volumes/InstallMacOSX/InstallMacOSX.pkg /Applications You should end up with the command looking something like (yours may look a bit different for the path to the.

Then continue typing on the same line: /Applications pkg file onto the Terminal window to auto-fill the path to the. Start by typing the following leaving at least one space after '-expand ': sudo pkgutil -expand You can use a Terminal command to manually extract the installer. pkg into an app - an installer app never shows up in my Application folder. When I click on the InstallOS.pkg it opens an installation window, but does not convert the.

How to make dmg to bootable mac usb key command line