Eventually, it will copy the installer files and make the disk bootable. If you didn't leave this window open from the earlier steps, follow the instructions in Step 2 to bring the window back. You will see things like: Erasing Disk: 0%…10 percent…20 percent… during the process. A new window should pop up, and once it does, open the Installation folder. You should have already downloaded the installer from the Mac App Store. It should take less than a minute to copy over.
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. Lets see what are those. Use the Terminal to create a boot disk So you have your external drive, and the Sierra beta installer is in place. Very thorough tutorial but unnecessary. It will mount back up when it's done.
This means that if you moved it before installing Yosemite, you need to move it back before making your installer disk. Step 6: Wait for a couple of minutes to let DiskMaker X complete its job. Delete the Packages alias by dragging it to the trash, or by right-clicking the alias and selecting Move to Trash from the pop-up menu. The installer will delete itself when you install the operating system, but it can be re-downloaded if necessary. Press the power button again to turn it On and then hold the Alt or Option key from keyboard, when you see this screen release the button. Type the following two commands one by one: defaults write com. And don't worry, we'll be undoing this at the end of this guide.
Largely untested and full of bugs, this may lead to conflicts with production systems. The Disk Utility-via-Terminal approach is for the shell junkies out there. Worst case scenario is downloading the large file again from the Mac App Store, but then why make a bootable drive? If your drive is named something else, you need to change Untitled to the name of your drive. Hide the system files again using this command defaults write com. We need to use Terminal to make the system files visible.
A verification prompt will appear. Right-click or Control+click the Yosemite installer to view its contents. I was hoping to make myself a bootable installer of Yosemite but I cannot manage to find anywhere to download it. In the Terminal command you will use, I use Untitled to represent your external drive. What is the model of the iMac? Be aware that Google Drive sometimes corrupts files; I've had to zip installers before posting them but didn't do it to Yosemite for some reason.
When that part is done, your Mac may ask you if you want to use the drive for Time Machine. Step 4: DiskMaker X will automatically scan for the installation file located in the Applications folder and will ask your permission to use the same. Change the name of your drive to Untitled; you need to do this for the steps below. Then follow step 1 as per this tutorial. Enter the following command Figure O : defaults write com.
If you don't know how to do this, you can use the instructions in the article below to make the files visible:. Only a couple things left to copy over. Click Restore, and then click Erase in the dialog box that appears; if prompted, enter an admin-level username and password. Update: the public Yosemite version is out now, and you can download it from , , or. Cover image via Related Woah! Once downloaded the installer will run automatically.
The download size is about 5. Step Seven Next click the Apply button to save your changes. I wonder if your hard drive is taking a shit. I'm wary of going too high since this laptop is so old and I'm pretty new to doing my own upgrades. Step Eleven You may now restart your Mac and hold down the Option key after hearing the boot sound.
Once the file is present in the Disk Utility sidebar, be sure to select BaseSystem. Choose your disk or partition from the list that appears, verify that you'd like to have the disk or partition erased, and then wait for the files to copy over. Here are the steps for using it to create your installer drive. Follow to properly format the drive. Right-click the installer and select Show Package Contents from the context menu Figure F.
However, by my experience, it is far shorter than what is stated by the progress bar Figure L. Navigate to the System Installation directory where you will find an alias to the Packages folder. To confirm that you want to continue, type Y and hit Return. 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. Rename the drive to Untitled.