Eu encontrei a solução! Basicamente, os binários do Bash foram excluídos do meu computador.
eu usei: link
para tentar obter acesso ao root e descobri que não houve festa
- corrigido
Eu trabalhei no meu servidor Ubuntu 17.04 por uma semana agora e a partir de hoje não tenho acesso a ele. Quando tento fazer o login usando SSH, o login é negado e, quando tento efetuar login diretamente na VM do Hyper-V, ele faz o login com sucesso e depois volta para a tela de login (console, não GUI).
Existe uma maneira que eu poderia fazer o login no meu servidor?
Eu tentei usar a recuperação, mas isso me levou à inicialização normal diretamente.
Eu tentei adicionar o init=/bin/bash ou /bin/sh após a instrução grub, mas não funciona. Ele faz isso para todos os meus usuários.
Usando um live-cd, consegui obter algumas informações adicionais dos meus logs do sistema.
Sep 4 14:12:02 server systemd[1]: Started Getty on tty1.
Sep 4 14:12:06 server systemd[1]: Created slice User Slice of gabadmin.
Sep 4 14:12:06 server systemd[1]: Starting User Manager for UID 1000...
Sep 4 14:12:06 server systemd[1]: Started Session 4 of user gabadmin.
Sep 4 14:12:06 server systemd[2413]: Starting D-Bus User Message Bus Socket.
Sep 4 14:12:06 server systemd[2413]: Reached target Timers.
Sep 4 14:12:06 server systemd[2413]: Reached target Paths.
Sep 4 14:12:06 server systemd[2413]: Listening on D-Bus User Message Bus Socket.
Sep 4 14:12:06 server systemd[2413]: Reached target Sockets.
Sep 4 14:12:06 server systemd[2413]: Reached target Basic System.
Sep 4 14:12:06 server systemd[2413]: Reached target Default.
Sep 4 14:12:06 server systemd[2413]: Startup finished in 7ms.
Sep 4 14:12:06 server systemd[1]: Started User Manager for UID 1000.
Sep 4 14:12:06 server systemd[1]: [email protected]: Service has no hold-off time, scheduling restart.
Sep 4 14:12:06 server systemd[1]: Stopped Getty on tty1.
Sep 4 14:12:06 server systemd[1]: Started Getty on tty1.
Sep 4 14:12:06 server systemd[1]: Stopping User Manager for UID 1000...
Sep 4 14:12:06 server systemd[2413]: Stopped target Default.
Sep 4 14:12:06 server systemd[2413]: Stopped target Basic System.
Sep 4 14:12:06 server systemd[2413]: Stopped target Paths.
Sep 4 14:12:06 server systemd[2413]: Stopped target Sockets.
Sep 4 14:12:06 server systemd[2413]: Closed D-Bus User Message Bus Socket.
Sep 4 14:12:06 server systemd[2413]: Reached target Shutdown.
Sep 4 14:12:06 server systemd[2413]: Starting Exit the Session...
Sep 4 14:12:06 server systemd[2413]: Stopped target Timers.
Sep 4 14:12:06 server systemd[2413]: Received SIGRTMIN+24 from PID 2423 (kill).
Sep 4 14:12:06 server systemd[1]: Stopped User Manager for UID 1000.
Sep 4 14:12:06 server systemd[1]: Removed slice User Slice of gabadmin.
se eu verificar com o registro normal do servidor, será mostrado:
Sep 2 22:01:50 server systemd[1]: Created slice User Slice of gabadmin.
Sep 2 22:01:50 server systemd[1]: Starting User Manager for UID 1000...
Sep 2 22:01:50 server systemd[1]: Started Session 161 of user gabadmin.
Sep 2 22:01:50 server systemd[36312]: Reached target Paths.
Sep 2 22:01:50 server systemd[36312]: Reached target Timers.
Sep 2 22:01:50 server systemd[36312]: Starting D-Bus User Message Bus Socket.
Sep 2 22:01:50 server systemd[36312]: Listening on D-Bus User Message Bus Socket.
Sep 2 22:01:50 server systemd[36312]: Reached target Sockets.
Sep 2 22:01:50 server systemd[36312]: Reached target Basic System.
Sep 2 22:01:50 server systemd[36312]: Reached target Default.
Sep 2 22:01:50 server systemd[36312]: Startup finished in 18ms.
Sep 2 22:01:50 server systemd[1]: Started User Manager for UID 1000.
Sep 2 22:09:01 server CRON[36634]: (root) CMD ( [ -x /usr/lib/php/sessionclean ] && if [ ! -d /run/systemd/system ]; then /usr/lib/php/sessionclean; fi)
Sep 2 22:09:03 server systemd[1]: Starting Clean php session files...
Sep 2 22:09:03 server systemd[1]: Started Clean php session files.
Sep 2 22:16:39 server systemd[1]: Starting Daily apt activities...
Sep 2 22:16:41 server systemd[1]: Started Daily apt activities.
Sep 2 22:17:01 server CRON[37149]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly)
Sep 2 22:18:21 server systemd[1]: Created slice User Slice of server.