# User Guide ## FAQ #### user can not sudo? ``` # add user to sudo/admin group (select one command) usermod -aG wheel username usermod -aG sudo username # sudo not need to input password ``` #### Can not login when I reinstall my Instance? Need to clear all cookie at you browser #### How to update Media and library? --channel dev | release ``` docker exec -it websoft9-apphub bash bash /websoft9/script/update_zip.sh --channel dev --package_name "media-latest.zip" --sync_to "/websoft9/media" bash /websoft9/script/update_zip.sh --channel dev --package_name "library-latest.zip" --sync_to "/websoft9/library" ```