Solaris 10 cannot be telnet

When you telnet to a Solaris 10 server when Solaris 10 fails to telnet, the system prompts telnet: Unable to connect to remote host: Connection refused serial port logon to view # svcs-a | grep telnetuninitialized Nov_12 svc: /network/telnet: the default status shows uninitialized, not disabled or offline, or maintenance. # Svcadm enable svc:/network/telnet: default # svcs-a | grep telnetuninitialized Nov_12 svc:/network/telnet: default # svcadm restart svc:/network/telnet: default # svcs-a | grep telnetuninitialized Nov_12 svc:/network/telnet: default the telnet service cannot be started through svcadm enable or svcadm restart. # Svcs-a | grep milestoneonline Nov_12 svc:/milestone/network: defaultonline Nov_12 svc:/milestone/devices: defaultonline Nov_12 svc:/milestone/single-user: defaultonline Nov_12: svc: /milestone/sysconfig: defaultonline Nov_12 svc:/milestone/name-services: defaultoffline Nov_12 svc:/milestone/multi-user: defaultoffline svc:/milestone/multi-user-server: default ## svcs-a | grep filesystemonline Nov _ 12 svc:/system/filesystem/root: defaultonline Nov_12 svc:/system/filesystem/usr: defaultonline Nov_12 svc:/system/filesystem/minimal: defaultoffline Nov_12 svc: /system/filesystem/local: defaultonline Nov_12 svc:/system/filesystem/autofs: defaultonline Nov_12 svc:/system/filesystem/volfs: the default three offline services cannot be svcadm enable. Check/etc/vfstab and find several lines of mounting information of the soft partition file system, but this machine does not perform soft partition, because vfstab is copied from other machines, these lines are not deleted or commented. After deleting these lines, restart and no error is reported during startup. After the instance is restarted, the offline service status is displayed as online, and the telnet service works properly.