how to download yosemite if not on app store

#How to download yosemite if not on app store mac os

(The netboot image seems to be very picky with the WLAN connection and it took me two attempts to get around this step) If you get a message like 'Could not find installation information for this machine' just restart your Mac and continue with step 5. Depending on your internet connection it might take several hours to download and install 5.5 GB. After some verification steps you will be asked to choose a partition for the new system.

#How to download yosemite if not on app store mac os

Choose Mac OS Extended (Journaled) and GUID partition table (available with the option button). In the opening window choose Disk Utility and format/partition the drive you want to install the system to.(Additionally you might need an external drive or a thumb drive with at least 32 GB if you want to install to an external disk.) On a 50 Mbps-line it takes about 4 min (presenting a small animated globe) to boot into the recovery netboot image which is loaded from an apple server. In a few words you need the latest firmware update installed, either ethernet or WLAN (WPA/WPA2) and a router with DHCP activated for a successful internet recovery. The prerequisites for an internet recovery are listed here: supported Pre Lion Macs and Recovery/Internet Recovery.

Since your recovery volume is probably corrupted, you have to initiate an internet recovery by restarting your mac and pressing alt cmd R.Do a PRAM-reset (Apple Support: de_DE en_US).Do a SMC-reset (Apple Support: de-DE en-US).Please check your hardware with your original system DVD (Apple Support: de_DE en_US) or if the DVD is not available with the appropriate Apple Hardware Test image.Probably it's faster to just backup/copy your or all user folder(s) to an external drive. Backup any additional files which aren't already in your SuperDuper! image.My MAS application is still broken and there are glitches everywhere.