I am quite new to Linux.  I have spent hours searching through forums for the answer.  I'm using Arch Linux and am unable to update the system now as I keep getting an error telling me that Mesa-libgl and nvidia-libgl are in conflict.  I attempted to fix this with sudo pacman -S nvidia nvidia-libgl.  When I rebooted I just got a black screen that had some info and it would just hang there and never load GNOME.  I just want to re-install mesa and mesa-libgl.  I chroot in from GRUB and it puts me as root@(none).  pacman -S mesa mesa-libgl just gives me could not resolve host on all my mirrors.  
Mesa and nvidia conflict
arch linux;nvidia;chroot
I solved my issue.  I was able to boot console mode using CTL+ALT+F5.  From there I just installed what I needed.  Thank you for your time.