SD card as bootable volume?

[iTurbo]

I have a 64 GB SDXC card that I was wondering if it is possible to make a bootable MacOS volume on.

Specifically it is a PNY 64 GB SDXC card and it states on the card itself it does 90 MB/sec.

I was thinking of making a bootable Mac OS X drive using it for backup/emergency boot just in case when I upgrade the Fusion drive sometime later. I have an external Apple SuperDrive, but no optical backup disc (late 2012 iMac). I also have very limited internet at the moment.

I am just wondering if it is possible to make a clone of a basic system using CarbonCopyCloner using the SD card as a target and then be able to successfully boot from it holding down the option key at startup.

 

[Fishrrman]

"I am just wondering if it is possible to make a clone of a basic system using CarbonCopyCloner using the SD card as a target and then be able to successfully boot from it holding down the option key at startup."

This should work well enough.
I've created "boot installers" using an SD card, although I found that the speed wasn't particularly fast. But ... it still worked, that was what "counted".

Give it a try and get back to us.