Create mac os x startup disk usb install#
Create mac os x startup disk usb password#
Create mac os x startup disk usb download#

Right-click (or Control+click) the Yosemite installer to view its contents. The procedure is a bit more involved with Yosemite than it was for Mavericks (which was itself a bit more involved than under Mountain Lion and Lion). Here are the steps for using it to create your installer drive.

YouвЂ™ll find Disk Utility, a handy app that ships with OS X, in /Applications/Utilities.

Create mac os x startup disk usb install#

If you like, you can rename the drive from its default name of Install OS X Yosemite, though I think itвЂ™s kind of a catchy name. You now have a bootable Yosemite install drive. (see the screenshot above), which could take as long as 20 or 30 minutes, depending on how fast your Mac can copy data to your destination drive. Wait until you see the text Copy Complete. The program then tells you itвЂ™s copying the installer files, making the disk bootable, and copying boot files.

The Terminal window displays the progress of the process, in a very Terminal sort of way, by displaying a textual representation of a progress bar: Erasing Disk: 0%вЂ¦ 10 percentвЂ¦20 percentвЂ¦ and so on.

Create mac os x startup disk usb password#

Type your admin-level account password when prompted, and then press Return.

Paste the copied command into Terminal and press Return.

Warning: This step will erase the destination drive or partition, so make sure that it doesnвЂ™t contain any valuable data.

Launch Terminal (in /Applications/Utilities).

Sudo /Applications/Install OS X Yosemite.app/Contents/Resources/createinstallmedia -volume /Volumes/Untitled -applicationpath /Applications/Install OS X Yosemite.app -nointeraction

Select the text of this Terminal command and copy it:.

This means that if you moved it before installing Yosemite, you need to move it back before making your installer disk. (The Terminal command used here assumes the drive is named Untitled.) Also, make sure the Yosemite installer, called Install OS X Yosemite.app, is in its default location in your main Applications folder (/Applications).

Connect to your Mac a properly formatted 8GB (or larger) drive, and rename the drive Untitled.

Using the createinstallmedia command in Terminal Here are the required steps: (Follow this tutorial to properly format the drive.) Your OS X user account must also have administrator privileges. That drive must also be formatted with a GUID Partition Table. Whichever method you use, you need a Mac-formatted drive (a hard drive, solid-state drive, thumb drive, or USB stick) thatвЂ™s big enough to hold the installer and all its data-I recommend at least an 8GB flash drive. The Disk Utility-via-Terminal approach is for the shell junkies out there. The Disk Utility method is the way to go for people who are more comfortable in the Finder (though it does require a couple Terminal commands), and it works under Snow Leopard, Lion, Mountain Lion, Mavericks, and Yosemite. (Note that the createinstallmedia tool doesnвЂ™t work under OS X 10.6 Snow Leopard-it requires OS X 10.7 Lion or later.) The createinstallmedia method is the easiest if youвЂ™re at all comfortable using Terminal, itвЂ™s the approach that I recommend you try first. IвЂ™ve come up with three ways you can create a bootable OS X install drive for the Yosemite: using the installerвЂ™s built-in createinstallmedia tool using Disk Utility or performing the Disk Utility procedure using Terminal. Please note: Disk Drill does not provide any option to create bootable CD/DVD drives due to them becoming less popular and accessible in modern computers.Create the Yosemite install drive: The options

This ensures the maximum amount of data stays intact during the recovery process, and other background processes or the operating system itself do not overwrite any recoverable pieces of information. Connect it to any Mac, run Disk Drill and use the 'Create Boot Drive' option on the main toolbar.Дisk Drill let's you run all its data recovery algorithms via a bootable Mac USB drive. Make sure you have an extra storage device, which is at least 2GB in size. Starting with Disk Drill 3, anyone can create a bootable Mac OS X drive in a matter of minutes. It'll make your Mac boot from USB in just a few clicks. Disk Drill is by far the most convenient and up-to-date macOS bootable file rescue solution.

Create mac os x startup disk usb download#

Set it aside, calm down and download a bootable data recovery app using any other computer. You can turn your computer off, remove the drive in question from the docking station, do whatever may be required to prevent any further utilization of that drive. The initial recommendation given to anyone who lost important data and would like to proceed with the data recovery is always to stop using the drive where the data was stored as soon as possible.