Updating your mac
There easiest way to boot to any device other than a Mac’s internal hard drive is to press and hold the Option key immediately after hearing the Mac startup chime.
It was much faster than the 5400 speed 2.5″ internal drive in the mac mini. I did a nice clean install and didn’t bother to import my old settings, preferences, software. Loaded all my goodies onto the bigger HD & went to work. […] Boot your Mac from CD, DVD, external drive, or USB flash …Booting to another volume using either of these methods is a one-time temporary change, so you don’t have to worry about altering any settings to reverse it.Your Mac will go back to booting to it’s primary startup disk next time you reboot. – OR – Why does it work for some but not for others? I have i Mac and created usb as well as dvd both are bootable..If you purchased a separate video card or cannot obtain the appropriate drivers through the computer manufacturer you may be able to obtain updated drivers from the manufacturer of your video card.Please consult your video card manufacturer or computer assembler if you have any questions regarding the installation of updated drivers.Download the 6Gb installer and burn to USB flash as described elsewhere. Power on Mac mini Press and hold option key Wait for disc boot selection menu THEN plug in your installer USB stick – it will be recognised and provided as a new boot option. Unfortunately, come reboot time, you gotta do this again otherwise it reverts to rebooting from the previous OS :-/ Well, that’s my limited experience so far…
If you see an error message while trying to update your device wirelessly, learn what to do.
If you can’t update wirelessly on your i OS device, you can update manually using i Tunes on a computer that you trust.
If your computer is using Personal Hotspot on the i OS device that you’re updating, connect your computer to a different Wi-Fi or Ethernet network before you update.
Let’s say you need to use the Mac OS X installation disc that came with your computer to reformat the hard drive and put it back to factory settings.
Or maybe you’re trying to boot from a USB flash drive that has a clean install of OS X on it for troubleshooting purposes.
I can install Linux Mint 17.2 using my Mac Book Pro and move the drive to the server.