Need some urgent help with my unruly Mac (faced with the prospect of erasing my hard drive after 150 days without backup...)
Here is the problem that I have. My Mac got quite slow and I restarted it and upon the restart I got a prohibitory sign, which is like a crossed out circle. I read that the solution to this would be reinstalling the OS in recovery mode (Cmnd+R) which I tried to do. The problem is that my hard drive is encrypted using Fire Vault so I need to unlock it before the OS can be reinstalled on it. Unfortunately, there is a known bug where the Fire Vault password is not recognized in recovery mode (I know a 100% it is the correct one, but the mac just rejects it). Again, upon googling I found that the solution to this problem would be to go to the Terminal from recovery mode and unlock the disk from the Terminal. (here is the thread where I found the solution https://discussions.apple.com/thread/3348646 )
Now I tried to follow the directions in the thread which are:
find the core storage UUID by doing diskutil coreStorage list
using the UUID of the locked HD, type in "diskutil coreStorage unlockVolume "
Now the current problem that I cannot solve arises when I type in diskutil coreStorage list. I get the error "No CoreStorage logical volume groups found" which means that my CoreStorage has been removed. This is where I am right now, and I could really use some help of someone who knows how to work with these things. As far as I understand, I either need to make my encrypted HD a core storage unit OR to find a way to unlock it without making it a core storage unit. I am scared to do either though because browsing through help files didn't give a simple answer and I am worried I will do something irreversibly bad.
Thank you very much!! Attached is the output of diskutil list diskutil output