When not toggle the checkbox 'Allow root SSH login with passwd', it still could ssh login with root.
$ setup.sh --machines=intel-x86-64 --distros=wrlinux --templates=feature/installer-support --layers meta-anaconda --dl-layers && source environment-setup-x86_64-wrlinuxsdk-linux # target image $ source oe-init-build-env build-target $ bitbake wrlinux-image-std # installer image $ source oe-init-build-env build-installer # append below configurations to local.conf DISTRO = 'wrlinux-installer' INSTALLER_TARGET_BUILD = "../build/tmp-glibc/deploy/images/intel-x86-64/wrlinux-image-std-intel-x86-64.ext4" $ bitbake wrlinux-image-installer # then run an installation and config "Root Account"