I installed arch a day ago and it was fine until yesterday but after I changed some settings in the
/etc/pam.d/system-local-login to use fingerprint login and reboot, I can't login in to arch linux. So I used my bootable usb to get into arch and changed the root password and tried deleting the user and making it again but nothing seems to work. Also I can now login in the bootable usb but cannot login with the same password when I boot normally.
/etc/pam.d/system-local-login doesn't seem to be changed even though I thought I changed it. What should I do?
I am using gnome