I was able to figure it out. following link did help me https://forum.magicmirror.builders/topic/8612/viewing-mirror-from-browser/3

@cruunnerr . Thanks for replying. I just did it on full version on raspbian stretch. Installer went fine. I also pressed y when it asked for installing pm2 now after i reboot the pi, MagicMirror splash screen comes but i boot into the desktop when i ran npm start dev , i can see modules working. if i try to run pm2 log, i get error -bash: pm2: command not found What am i doing wrong in here?