HT201372: Create a bootable installer for OS X
Learn about Create a bootable installer for OS X
-
All replies
-
Helpful answers
-
-
Mar 10, 2015 3:09 PM in response to Signe Matenby Kappy,Did you partition the flash drive GUID and Format it using Mac OS Extended, Journaled before you installed the installer? Did you name your flash drive "MyVolume"?
Make your own Yosemite flash drive installer using the Yosemite tool:
You can create a Yosemite flash drive installer via the Terminal. Yosemite has its own built-in installer maker you use via the Terminal:
You will need a freshly partitioned and formatted USB flash drive with at least 8GBs. Leave the name of the flash drive at the system default, "Untitled." Do not change this name. Wait for the process to complete which will take quite some time.
Open the Terminal in the Utilities folder. Copy and paste the following command line in its entirety into the Terminal window.
sudo /Applications/Install\ OS\ X\ Yosemite\ Developer\ Preview.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install\ OS\ X\ Yosemite\ Developer\ Preview.app --nointeraction
Press RETURN, enter admin password (will not echo to the window) then press RETURN again.
You need to have the installer in your Applications folder or change the paths in the above command line.
-
Mar 10, 2015 10:47 PM in response to Kappyby Signe Maten,The making of the USB installer flash disk went OK.
The USB flash disk starts to boot.
After some minutes it shows a stop sign.
The same flash disk was used as Yosemite installer 10.10.1 and worked fine.
-
Mar 11, 2015 11:48 AM in response to Signe Matenby Kappy,Does this computer meet the requirements to install Yosemite? Have you tried using another USB port?
-
Mar 11, 2015 2:32 PM in response to Kappyby Signe Maten,I have tried the installer on one MacBook Pro with Mavericks installed. After several unsuccessful attempts I also tried the installer on two other MacBooks with Yosemite allready installed. Same result all over.
-
Mar 11, 2015 2:45 PM in response to Signe Matenby Kappy,Get another flash drive, then. I've done this many dozens of times and have never had an issue.
-
Apr 4, 2015 11:31 AM in response to Kappyby ronsangels,Kappy: I have an iMac that came with a 3TB Fusion Drive, it crashed. It is running Yosemite 10.10.2
I have created a USB drive, it has 16.2GB on it. I made the name of the USB drive Untitled and tried it in Applications folder and in Applications/Install, I also tried "osxupd10.10.2.dmg" and OSXUpd10.10.2.pkg.
I always get the same results:
sudo /Applications/Install\ OS\ X\ Yosemite\ Developer\ Preview.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install\ OS\ X\ Yosemite\ Developer\ Preview.app --nointeraction
Password:
sudo: /Applications/Install OS X Yosemite Developer Preview.app/Contents/Resources/createinstallmedia: command not found
I enter the correct password.
What am I doing wrong, I am new to terminal
-ron