No Entry icon on SSD in 10.10.1 but SSD is visible & readable from other internal Mac HD
Hi,
So my system has been fine all day, came back from a meeting, rebooted it to cycle it and it took ages to get through the progress bar (getting about 15-20% of the way) before promptly giving me the no entry icon.
Rebooted with PRAM held down, nothing.
Rebooted into recovery and checked the disk. No issues at all.
Rebooted into my HD backup of the SSD, and the drive not only shows up, but all the files are fully readable.
Thinking it might've been a plist I tweaked in Logic (to change the amazing 400 various shade of purple to back to the useful colours in LP9) I restored the original unmodified plist.
Rebooted. Same no entry sign.
Rebooted into safe mode.
No entry sign.
Rebooted back into HD backup. SSD still there, Disk Utility still shows it being A OK.
Does anyone know what might be going on? Short of wiping and reloading from the back up (which I can't do as sod's law this happened 20 mins before a session is about to start) It's so weird!
Ben
Mac Pro, OS X Yosemite (10.10), 3.46Ghz, 64GB RAM, 2TB PCIe Flash, 512GB SSD