mac pro model a1286 gray screen
mac pro model#1286 will not boot. Will not even safe boot . I have tried all suggested methods to start without success.
MacBook Pro, Failed during an update
All? does that mean Recovery and Internet Recovery Mode?
There is a reason to make backups that are bootable (ie, 'clone')
How to Re-Download OS X Mavericks Installer from the OS X Yosemite App Store
Create a bootable installer for OS X Mavericks or Yosemite
So you can boot from flash or other drive type and reinstall at any time, even if you lost the recovery partition.
