Recently I have faced Kernal Panic error After upgrade yum on Centos 7.

The complete Error message is as below-

Kernal Panic - Not syncing : VFS: unable to mount root fs on unknown-block (0,0).


I got the slution of the issue. Just follow the below steps-

Step-1: Boot your machine (Centos 7) with Old kernal

Step-2: Finally run below command.

[root@tutschools ~]# yum remove kernal
[root@tutschools ~]# yum update -y
[root@tutschools ~]# reboot

You can also watch the video tutorial-