#Mac os efi boot how to
#Mac os efi boot pro
#Mac os efi boot mac

#Mac os efi boot pro

I have no trouble after creating the clone with using other backup software to perform incremental updates of the clone for which you can use SuperDuper! If you want somewhat faster backups consider Synk or Synchronize! Pro X, both of which implement a fast scanning process that can make subsequent incremental updates much faster by reducing the time to rescan the source and destination drives. Furthermore, there have been numerous OS X updates that have broken many backup utilities including SuperDuper!. I trust Apple to know the best method for cloning OS X. Other cloning software tries to back-engineer what Apple does and most do it differently from one another.

#Mac os efi boot how to

Apple seems to know best how to clone their system. I'm just guessing? Anyway, for now at least, my drives are once again properly named under an Option boot.Д¬hossing the drive in Startup Disk preferences and rebooting is basically doing the same thing as blessing the system which is what the Terminal procedure does but without having to take nearly as long.ДЄs for cloning I recommend using the Restore option in Disk Utility. So, perhaps that's the same as going into terminal and choosing to 'bless' a certain drive? I don't know. I then rebooted and the normal names were once again restored. Actually, that was the one already chosen but I clicked to the clone, then right back to the main drive and then said OK. But then I went into System Preferences and explicitly chose the main drive as the normal boot drive. I booted several times and the issue persisted. When I did that today did I for the first time ever see both drives called 'efi boot'. Then I use the Option key to boot from the clone and reverse the process. I first always boot from the main drive and then rebuild the clone drive. It is then my habit to choose the clone, boot from it and then run Disk Warrior to check and rebuild the directory on both drives. In fact, it is right after I clone the drive that I then reboot, hold down the Option key to see (hopefully) two bootable drives, my main drive and the clone. I've used it for a few years now and only today saw this EFI boot for the first time. As for the cloning software I use Super Duper. And yes, this happens every time you rebuild the directory with DW, The startup disk name should now equal the volume name.

The solution is to simply select the startup disk you want via the (my way of saying most things already or may exist and worth a read). And the boot manager shows EFI (which are 128MB and probably the 'actual' boot loader is there but that is pure guess-speculation).

#Mac os efi boot mac

First saw it back in 10.5.0 if not earlier and thought it was TechTool Pro 4.x issue (the first time I saw that my Intel Mac Pro has GPT and EFI partitions). I do not know if you must first boot from each drive in order to apply the fix to that drive or if there is another way, but I'm sure that if you first boot from each drive and apply the fix then the problem should be solved. (press return, enter your admin password, press return again) Sudo bless -folder /System/Library/Coreservices -bootefi 'EFI' means 'Extensible Firmware Interface' which is the type of firmware interface used in Intel Mac boot ROMs.

This can result in the clones getting a generic name, 'efi boot.' All it means is that the volume is a proper startup volume. Some cloning software does not set the permissions on the destination drive properly, while other cloning software does not require you to erase the destination drive first, and still other cloning software may not provide a valid disk name. How exactly do you make these clones and are all of these 'bootable options' made by cloning?