I've a problem with my Raspberry Pi-3. I'm using the last distribution of Raspbian. I don't know what happened last night (maybe the current has jumped) and today when I rebooted my Raspberry, it remain blocked after the boot, I see a black screen with a flashing dash at the top left like "-".
My Raspberry have an external hard drive mounted in fstab, so I tried to do some test.
I've disconnected the hard drive from the Raspberry and try to reboot again, it of course remain stopped because it can't find the drive to mount, but I can use the Raspberry as root (emergency mode).
It's possible recover the hard drive and maybe understand better what is the problem?
I'm not an expert in this field so I need an help. I've important files on this hard drive and I can't format it.
What I can do for repair this? Thanks.