TWRP and CWM unable to mount Nexus 7 filesystem I'm trying to root an unlocked Nexus 2013 Wifi. TWRP and CWM are unable to mount /data, /cache, or /system in recovery mode. TWRP reports internal storage of 0 MB. The system boots normally outside of recovery mode.

A soft-bricked restore with WUG didn't fix it. I've tried manually flashing TWRP and CWM with fastboot in VMWare Ubuntu, WUG in VMWare Windows 7, and in OS X, but the issue persists.
On TWRP (not sure bout CWM), only Data is mounted by default. You have to mount it with the mount option. Be sure to enable MTP (mount point) just in case