ubuntu crash

问题现象
You are in emergency mode. After logging in, type "journaltcl -xb to view system logs, "systemctrl reboot" to reboot "systemctl default" or "exit" to boot into default mode.
解决办法
- 使用 journaltcl -xb 命令查看日志，我的错误是failed to start File System Check on /dev/sdb1
- 使用fsck /dev/sdb1 命令对文件系统进行检查和修复