Linux系统强制关机出现

Generating "/run/initramfs/rdsosreport.txt"
Entering emergency mode . Exit the shell to continue.Type "journalctl" to view
sustem logs.You might want to save "/run/initramfs/rdsosreport.txt" to a USB stick 
or /bootafter mounting them and attach it to a bug report.

解决方案：

第一步：执行ls /dev/mapper查看逻辑卷

第二步：执行 xfs_repair /dev/mapper/centos-root -L

centos-root替换为对应的卷名

第三步：执行reboot重启