Q: Can't partition (option greyed out) External HDD on Mac OS X El Capitan
Hi guys,
Scoured the net for an existing solution to this problem, but to no avail.
I'm attempting to partition a 500gb external HDD to run bootcamp, but whenever I go into Disk Utility, the option to partition the drive is greyed out.
I've previously erased and formatted to Mac OS X Journaled, so there's nothing on it, but still the partition option isn't available (see screenshot).
MacBook Pro
Posted on Nov 15, 2015 1:48 AM
by Alberto Ravasio,Solvedanswer
Issue the following Terminal's command
diskutil erasedisk hfs+ External GPT /dev/disk2
Posted on Nov 15, 2015 6:27 AM



