fixed menu length, switched mkinitcpio and pacman run to foreground, log output of mkinitcpio and pacman to /dev/tty7, only show mkinitcpio log on error, only show installation log on error, else report just success.
fixed menu length, switched mkinitcpio and pacman run to foreground, log output of mkinitcpio and pacman to /dev/tty7, only show mkinitcpio log on error, only show installation log on error, else report just success.