It should have the option to boot into the usb you just created if not choose to reboot and hold the command or option key (alt on Window's keyboard) and the option to boot into either the usb or the recovery partition should be there, boot into the usb. Wait for it to complete, quit terminal and go to the apple menu in top left corner and select - startup disk. It should say it's erasing disk than copying installer files type yes and hit enter (just typing "y" doesn't work) It should ask for permission to erase the usb. Volumes/usb2/Install\ OS\ X\ Yosemite/Install\ OS\ X\ Yosemite.app/Contents/Resources/createinstallmedia -volume /Volumes/usb1 -applicationpath /Volumes/usb2/Install\ OS\ X\ Yosemite/Install\ OS\ X\ Yosemite.app Type this command into terminal (using tab autocomplete here makes life easier) - > (type /Vol and than hit tab, it will auto complete) ** When typing in terminal, use tab to autocomplete the directories. Quit disk utility and open terminal from the top menu - utilities - terminal.Note the mount points for both USB sticks, I will assume they are /Volumes/usb1 and /Volumes/usb2 (use disk utility to find out).Verify and repair usb2 if needed in disk utility using the first aid panel.Eject the usb drive (usb2) and plug it into the mac.
How to download yosemite onto usb drive install#
Rename the top most folder from " Install OS X Yosemite.app" to " Install OS X Yosemite" (the next folder in should have the.
How to download yosemite onto usb drive zip#
Unzip the provided zip directly onto the usb, it takes awhile.Use hfs+ to mount it if you can't see it in windows explorer. Still in disk utility, right click on usb2 and eject it.You will need to boot the Mac into recovery, open disk utility and partition both thumb drives with the guid partition table (name them usb1 and usb2 as I will be referring to them as such in following terminal commands).A copy of the zip provided by /u/jackasstacular, here.A windows machine with paragon hfs+ installed, available here.A Mac with disk utility and terminal (able to boot into recovery partition 10.10.5).2x 8 gigabyte thumb drives (16GB would be better).u/jackasstacular is the real MVR(edditor) here. My problem was, I formatted the partition OS X was on and the built in installer on the recovery partition was erroring out "item unavailable" (my iCloud acct wasn't the original owner of this iMac and Yosemite isn't available to download from app store). My mac could still boot into its recovery partition with Yosemite 10.10.5, which has OS X Utilities, disk utility, safari, terminal, etc.
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