我使用 init 6 通过 ssh 会话重新启动了 Ubuntu 20.04。重新启动后，我可以连接，但失败，退出代码为 255。我尝试了公钥和密码验证。这是 ssh -vv 10.0.2.184 的结尾 - 它显示身份验证成功了！但我不明白为什么它会在 255 时死机……
debug1: Server accepts key: /opt/openssh-8.9p1/etc/ssh_host_rsa_key RSA SHA256:1Dt6UXfkDXMyVKjPZ56Sj3lCoyefwgP2ZG7BNJLE9uE
Authenticated to 10.0.2.184 ([10.0.2.184]:22) using "publickey".
debug1: channel 0: new [client-session]
debug2: channel 0: send open
debug1: Requesting [email protected]
debug1: Entering interactive session.
debug1: pledge: filesystem
debug1: client_input_global_request: rtype [email protected] want_reply 0
debug1: client_input_hostkeys: searching /root/.ssh/known_hosts for 10.0.2.184 / (none)
debug1: client_input_hostkeys: searching /root/.ssh/known_hosts2 for 10.0.2.184 / (none)
debug1: client_input_hostkeys: hostkeys file /root/.ssh/known_hosts2 does not exist
debug1: client_input_hostkeys: host key found matching a different name/address, skipping UserKnownHostsFile update
debug1: Remote: /root/.ssh/authorized_keys:15: key options: agent-forwarding port-forwarding pty user-rc x11-forwarding
debug1: Remote: /root/.ssh/authorized_keys:15: key options: agent-forwarding port-forwarding pty user-rc x11-forwarding
debug2: channel_input_open_confirmation: channel 0: callback start
debug2: fd 4 setting TCP_NODELAY
debug2: client_session2_setup: id 0
debug2: channel 0: request pty-req confirm 1
debug1: Sending environment.
debug1: channel 0: setting env LANG = "C"
debug2: channel 0: request env confirm 0
debug2: channel 0: request shell confirm 1
debug2: channel_input_open_confirmation: channel 0: callback done
debug2: channel 0: open confirm rwindow 0 rmax 32768
debug2: channel_input_status_confirm: type 99 id 0
debug2: PTY allocation request accepted on channel 0
debug2: channel 0: rcvd adjust 2097152
debug2: channel_input_status_confirm: type 99 id 0
debug2: shell request accepted on channel 0
debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
debug1: client_input_channel_req: channel 0 rtype [email protected] reply 0
debug2: channel 0: rcvd eow
debug2: chan_shutdown_read: channel 0: (i0 o0 sock -1 wfd 5 efd 7 [write])
debug2: channel 0: input open -> closed
debug2: channel 0: rcvd eof
debug2: channel 0: output open -> drain
debug2: channel 0: obuf empty
debug2: chan_shutdown_write: channel 0: (i3 o1 sock -1 wfd 6 efd 7 [write])
debug2: channel 0: output drain -> closed
debug2: channel 0: rcvd close
debug2: channel 0: almost dead
debug2: channel 0: gc: notify user
debug2: channel 0: gc: user detached
debug2: channel 0: send close
debug2: channel 0: is dead
debug2: channel 0: garbage collecting
debug1: channel 0: free: client-session, nchannels 1
Connection to 10.0.2.184 closed.
Transferred: sent 3140, received 3232 bytes, in 0.6 seconds
Bytes per second: sent 5192.6, received 5344.7
debug1: Exit status 255
有人有主意吗？