My Macbook Pro recognizes this drive as being bootable. It took a bit of time but not enormous (usb3). The installer, of course, was in my Applications directory (folder). The command I pasted into the Terminal was one identical to the one you indicate (with the flash drive name or label changed appropriately). I renamed the drive from Untitled to OSX_install or something like that and adjusted the createinstallmedia command to have the matching name for the drive. I partitioned and formatted it (GUID partition table/OSX extended,journaled) before using it with the createinstallmedia command. The flash drive is a Kingston 32 GB usb3-capable one. Thanks for anyone's help or direction on this. Is there a limit, for example, on the number of bootable partitions the Boot Manager will display or recognize? The Mac Mini has a Boot Camp partition on it containing Windows 7.ĭoes the Boot Camp partition prevent the USB bootable flash drive from being recognized as a bootable source? There is one significant difference I can think of that might be affecting this. My question is: why does the Mac Mini not see this flash drive as a bootable entity whereas the MacBook Pro does?
:max_bytes(150000):strip_icc()/DiskUtilitycontinueannotted-466f545a0f694970be81b88d10e2ac92.jpg "mac pro mid 2012 boot from usb")
At the boot manager, I see the OS X partitionĪnd the OS X 10.8.5 Recovery partition BUT I also see the USB bootable installer flash drive as a bootable entity. So I stuck the flash drive in the 2010 MacBook Pro and powered up and held down Option key. It is not recognized in any of them.īegan to think the usb bootable installer flash drive was in fact not recognized as bootable.
Tried the usb bootable installer in each of the 4 USB ports one after the other. The OS X 10.8.5 Recovery partition and the BootCamp partition (has Windoze 7 on it) but no USB bootable.
When I shut down the Mac Mini and plug in the flash drive with installer, hold down Option key and boot to the Boot Manager, I see the OS X partition,
#Mac pro mid 2012 boot from usb install#
The USB install (though the USB installer flash drive mounts no problem). But System Preferences/StartUp Disk shows only the OS X and my Boot Camp partitions to choose.
#Mac pro mid 2012 boot from usb update#
Used the one-liner "createinstallmedia" command recommended by Apple and various other websites, I created a usb bootable installer.ĭecided to update Mac Mini first. Decided it was perhaps time to update them to El Capitan.ĭownloaded the El Capitan installer from the App Store. I have a mid-2010 MacBook Pro and a 2012 Mac Mini, both running Mountain Lion 10.8.5.
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