I'm a bit new in this and I tried to change the motherboard but I didn't knew the risks. So now I don't know if I lost all the hard drive.
Is there something I can do? I installed the older motherboard back but it shows the same: invalid Ron contents. Welcome to emergency model, ....
I tried all the options and it always shows the initial screen of lubuntu (I run lubuntu 16.04) but then it returns to this screen.
Is there anyway I can recover the hard drive?