ubuntu系统出错且无法恢复请联系管理员（A problem has occurred and the system can‘t recover,please contact the admini）

1.首先要进入tty 模式：

先ctrl alt f2看看能进tty不 (非笔记本电脑)

笔记本电脑 ctrl alt fn f2

2. 先联网：

连接有线网络 

sudo dhclient eth0

如果报错 Cannot find device "eth0"

接下来执行 dmesg | grep eth

 

[    1.915263] e1000e 0000:00:1f.6 eth0: (PCI Express:2.5GT/s:Width x1) b8:85:84:9b:c5:e7

[    1.915265] e1000e 0000:00:1f.6 eth0: Intel(R) PRO/1000 Network Connection

[    1.915509] e1000e 0000:00:1f.6 eth0: MAC: 13, PHY: 12, PBA No: FFFFFF-0FF

[    1.916461] e1000e 0000:00:1f.6 eno1: renamed from eth0

[    9.225997] wmi_bus wmi_bus-PNP0C14:04: WQBC data block query control method not found

发现被rename了 再执行 。sudo dhclient eno1 

执行ifconfig 就发现成功了

3.执行下面命令

然后依次执行apt update,

apt --fix-broken install,

apt upgrade