There was some problem with our system so I re-installed the server with CentOS 7. Now, when I am trying to run fdisk -l command, it is returning a broken output.It throws this error- fdisk: cannot open /dev/sdc: Input/output error.There are valid /dev/..

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I have been using VNC on CentOS 7 server from last couple of months and it was running all fine till last night. Unfortunately, there was an abrupt power failure and system got restarted.Now, when I try to login with VNCviwer, it thrown an error message-*Gn..

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