If you don’t want to download an extra bit of software, you can make your own installer USB drive using Terminal. Download the macOS Sierra installer. Insert an 8GB (or larger) flash drive.
Once you install Yosemite, the file will automatically erase itself, so it's important to make a bootable drive first. If you want to install first and then make a bootable drive, make a copy of the installer app in another location so you can access it later. Worst case scenario is downloading the large file again from the Mac App Store, but then why make a bootable drive? The Easiest Way: Use DiskMaker X By far the easiest way to create a bootable drive is to use the DiskMaker X application, which automates the entire process in the next method. To start out, download the newest version of DiskMaker X from. Currently, that's the.
(Update: the public Yosemite version is out now, and you can download it from, or.) Once download, open it up and select 'Yosemite Beta' or 'Yosemite 10.10' (depending on the version you're using) to start the process. Then just follow the rest of the prompts to start the disk-making process. It could take anywhere from 15 minutes to to 45 minutes to finish, depending on your USB flash drive.
If it's more toward the latter, you might get a ' error, but it should still work, (it worked for me). The Less Easy Way: Format & Use Terminal If you're more comfortable with Terminal commands, this is the method for you. Just make sure your USB drive is already formatted correctly before proceeding.
To see how to correctly format your USB drive, please see Step #1 below in the 'The Hardest Way' section. With your USB drive ready to go, open up Terminal and type (or copy/paste) the following command. sudo /Applications/Install OS X Yosemite.app/Contents/Resources/createinstallmedia -volume /Volumes/Yosemite -applicationpath /Applications/Install OS X Yosemite.app -nointeraction Note that you should replace the 'Yosemite' in 'Volumes/Yosemite' with whatever you named your USB drive. This should all be one line.
After you get it in there, just hit the Enter key. Type in your admin password to continue and the Enter again. (You won't visibly see your password typing, but it's happening—believe me.) Now just wait. This could be fairly quickly or very long, depending on your system and USB drive. The Hardest Way: Do Everything Manually If you don't want to use DiskMaker X or Terminal commands, this is another option for you.
It's a lot more complicated, but gets the job done. Step 1: Reformat Your USB Drive First, make sure you have a USB flash drive that's at least 8 GBs in size, then mount it. Open up Disk Utility and do the following.
Select the USB drive (not the partition). Go to the Partition tab. Change the 'Partition Layout' to 1 Partition. Rename it Yosemite (or whatever you want). Select Mac OS Extended (Journaled) as the 'Format'. Click the Options. After your Finder reloads, the hidden files you once saw before should now be gone.
Go ahead and close all of your windows, exit Terminal and Disk Utility, and eject your mounted disks to clean up your mess. Installing Yosemite on Your Computer Now, it's time to test out your new drive. Restart your computer while holding the Option (Alt) key on your keyboard. Wait until the Startup Manager pops up, then select your new OS X Base System volume (or whatever your bootable drive is called). Alternatively, you can just hold down the C button while starting up to boot directly into the USB drive. Troubleshooting Tips If the installation of Yosemite freezes, it's probably because your USB drive is corrupted in some way. This happened to me on the first couple tries, where it would freeze at 5 minutes left.
The third USB stick I used was successful, and it took less than 15 minutes for Yosemite to boot up. If you're getting an Undefined error: 0 warning when trying to install, this more than likely means that you forgot to perform Step 6 above, so make sure to copy over those two BaseSystem files. If you got the 'AppleEvent timed out' error using DiskMaker X, more than likely it'll still work. Just eject the new drive and use it. If it doesn't work, try one of the other methods out to start over. If you're not sure if you're going to like Yosemite over Mavericks, I would suggest and installing Yosemite there, that way if anything goes wrong, your Mavericks installation will still be untouched. Cover image via Related.
Talk about the long way of achieving this! Very thorough tutorial but unnecessary. Assuming you have downloaded the BETA version of Yosemite, open up the installer from the Application folder, but do not proceed with the installer, just leave it open. Then follow step 1 as per this tutorial. Once your USB drive has been formatted add copy and paste the following into Terminal: sudo /Applications/Install OS X Yosemite Beta.app/Contents/Resources/createinstallmedia -volume /Volumes/UNTITLED -applicationpath /Applications/Install OS X Yosemite Beta.app -nointeraction Where UNTITLED is the name of your formatted volums/USB drive e.g.
Wait (a while, no really, you'll be waiting quite some time if you're not using USB 3.0 or Thunderbolt) and then you'll be ready to boot and clean install Yosemite BETA from your USB drive. Carry on from Step 8. No need for lengthy process of hiding.unhiding files.folders nor is there a need to drag and drop files/folders.
Don't forget to backup! Great tutorial and thanks for your hard work and for your generosity!
I did the usb installation, i installed on the hard drive and when i tried to boot from hdd the boot process stops and the computer reboots. I used the flags: -s -x -f -v kext-dev-mode=1 KernelCache=No. I have a emachines E725, dual core T4400, 3 GB Ram, 320GB HDD, integrated graphic card Intel GM45, i don't know the type of the motherboard of this machines with windows 7, xubuntu 14.04 and mavericks 10.9.5 on it. Please help me! I NEED HELP!!
I know I'm a few years late but I JUST came into possession of a 2007 macbook (A1181) and I'm upgrading the RAM (to 4GB) and hard drive (to 500 GB). I was hoping to make myself a bootable installer of Yosemite but I cannot manage to find anywhere to download it. That is the only thing hanging up my adventure. I'd be open to any other macOS as long as it can run the newest iTunes. I'm wary of going too high since this laptop is so old and I'm pretty new to doing my own upgrades. THANKS!!:) Reply.
1. Overview With a bootable Ubuntu USB stick, you can:. Install or upgrade Ubuntu, even on a Mac. Test out the Ubuntu desktop experience without touching your PC configuration.
Boot into Ubuntu on a borrowed machine or from an internet cafe. Use tools installed by default on the USB stick to repair or fix a broken configuration Create a bootable Ubuntu USB stick is very simple, especially if you’re going to use the USB stick with a generic Windows or Linux PC. We’re going to cover the process in the next few steps.
Apple hardware considerations There are a few additional considerations when booting the USB stick on Apple hardware. This is because Apple’s ‘Startup Manager’, summoned by holding the Option/alt (⌥) key when booting, won’t detect the USB stick without a specific partition table and layout. We’ll cover this in a later step. 2. Requirements You will need:. A 2GB or larger USB stick/flash drive. An Apple computer or laptop running macOS.
An Ubuntu ISO file. See for download links 3. Prepare the USB stick To ensure maximum compatibility with Apple hardware, we’re going to first blank and reformat the USB stick using Apple’s ‘Disk Utility’. But this step can be skipped if you intend to use the USB stick with only generic PC hardware.
Launch Disk Utility from ApplicationsUtilities or Spotlight search. Insert your USB stick and observe the new device added to Disk Utility. Select the USB stick device and select Erase from the tool bar (or right-click menu).
Set the format to MS-DOS (FAT) and the scheme to GUID Partition Map. Check you’ve chosen the correct device and click Erase. Warning: Disk Utility needs to be used with caution as selecting the wrong device or partition can result in data loss. 4. Install and run Etcher To write the ISO file to the USB stick, we’re going to use a free and open source application called.
After downloading this and clicking to mount the package, Etcher can either be run in-place or dragged into your Applications folder. By default, recent versions of macOS block the running of applications from unidentified developers. To side-step this issue, enable ‘App Store and identified developers’ in the ‘Security & Privacy’ pane of System Preferences.
If you are still warned against running the application, click ‘Open Anyway’ in the same pane. Tutorials: Create a bootable Ubuntu USB stick on macOS 5. Etcher configuration Etcher will configure and write to your USB device in three stages, each of which needs to be selected in turn:.
Select image will open a file requester from which should navigate to and select the ISO file downloaded previously. By default, the ISO file will be in your Downloads folder. Select drive, replaced by the name of your USB device if one is already attached, lets you select your target device. You will be warned if the storage space is too small for your selected ISO. Flash! will activate when both the image and the drive have been selected. As with Disk Utility, Etcher needs low-level access to your storage hardware and will ask for your password after selection.
6. Write to device After entering your password, Etcher will start writing the ISO file to your USB device. The Flash stage of the process will show progress, writing speed and an estimated duration until completion. This will be followed by a validation stage that will ensure the contents of the USB device are identical to the source image. When everything has finished, Etcher will declare the process a success. You now have Ubuntu on a USB stick, bootable and ready to go. Warning: After the write process has completed, macOS may inform you that ‘The disk you inserted was not readable by this computer’.
Don’t select Initialise. Instead, select Eject and remove the USB device. 7. Boot your Mac If you want to use your USB stick with an Apple Mac, you will need to restart or power-on the Mac with the USB stick inserted while the Option/alt (⌥) key is pressed. This will launch Apple’s ‘Startup Manager’ which shows bootable devices connected to the machine.
Your USB stick should appear as gold/yellow and labelled ‘EFI Boot’. Selecting this will lead you to the standard Ubuntu boot menu.
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