df: cannot read table of mounted filesystems: Input/output error

Hello All,
When i  am on Redhat 7.2 Box, when i try to execute the command
df -h 
it says the following
"df: cannot read table of mounted filesystems: Input/output error"

Any help would be appreciated.

Regards,
Tina.

lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.