有没有办法检测服务器何时完成（即完成所有内核启动任务）？ 这是Google计算引擎实例。
Nov 18 10:58:51 image-name google: No startup script found in metadata. Nov 18 10:58:53 image-name kernel: [ 27.491829] aufs au_opts_verify:1570:docker[2414]: dirperm1 breaks the protection by the permission bits on the lower branch Nov 18 10:58:53 image-name kernel: [ 27.703142] aufs au_opts_verify:1570:docker[2414]: dirperm1 breaks the protection by the permission bits on the lower branch Nov 18 10:58:53 image-name kernel: [ 27.735867] aufs au_opts_verify:1570:docker[2414]: dirperm1 breaks the protection by the permission bits on the lower branch Nov 18 10:58:53 image-name kernel: [ 27.771732] aufs au_opts_verify:1570:docker[2260]: dirperm1 breaks the protection by the permission bits on the lower branch Nov 18 10:58:53 image-name kernel: [ 27.797540] device vethfa3ab85 entered promiscuous mode Nov 18 10:58:53 image-name kernel: [ 27.804420] IPv6: ADDRCONF(NETDEV_UP): vethfa3ab85: link is not ready Nov 18 10:58:53 image-name kernel: [ 28.028306] IPv6: ADDRCONF(NETDEV_CHANGE): vethfa3ab85: link becomes ready Nov 18 10:58:53 image-name kernel: [ 28.035505] docker0: port 1(vethfa3ab85) entered forwarding state Nov 18 10:58:53 image-name kernel: [ 28.041963] docker0: port 1(vethfa3ab85) entered forwarding state Nov 18 10:58:53 image-name kernel: [ 28.048532] IPv6: ADDRCONF(NETDEV_CHANGE): docker0: link becomes ready Nov 18 10:58:54 image-name kernel: [ 28.980082] IPv6: eth0: IPv6 duplicate address fe80::42:acff:fe11:1 detected! Nov 18 10:59:08 image-name kernel: [ 43.068094] docker0: port 1(vethfa3ab85) entered forwarding state Nov 18 10:59:53 image-name kernel: [ 87.944452] aufs au_opts_verify:1570:docker[2864]: dirperm1 breaks the protection by the permission bits on the lower branch Nov 18 10:59:53 image-name kernel: [ 88.001012] aufs au_opts_verify:1570:docker[2864]: dirperm1 breaks the protection by the permission bits on the lower branch Nov 18 10:59:53 image-name kernel: [ 88.049510] aufs au_opts_verify:1570:docker[2815]: dirperm1 breaks the protection by the permission bits on the lower branch 我的问题是，当内核进度低于30％，并且一些进程尚未启动时，我可以使用SSH连接到它。 我想检测如果服务器已完成启动。
您可以创build自己的脚本来经常调用以下命令：
gcloud compute instances get-serial-port-output INSTANCE_NAME
串口输出将为您提供实例上的所有日志，包括启动的服务。