"Not on system console [when telnet]"
แก้ง่ายมากครับ
แก้ file: /etc/default/login
# If CONSOLE is set, root can only login on that device.
# Comment this line out to allow remote login by root.
#
#CONSOLE=/dev/console
===
Know your architecture
# isainfo -kv
64-bit sparcv9 kernel modules