启动时，我看到黑屏显示文本为`ubuntu18.04.2 LTS localhost tty1`

Question

Ubuntu 18.04.2 LTS localhost tty1 localhost login: yuliia
 Password: 
etc/update-notd.d/80-esm: 3: etc/update notd.d/80-esm: Isb release: not found 
etc/update-notd.d/80-esm: 4: etc/update notd.d/ 80-esm: Isb release: not found 
etc/update-notd.d/ 91-release-upgrade: 4: etc/update notd.d/91- release-upgrade: Isb release: not found
 Welcone to Ubuntu 18.04.2 LTS CGNLinux 4.15.0 43 generic x86 64)

我试着更新python，但是删除了它，然后重新安装。重启后我看到黑屏。请帮帮我！在