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To repair disk error on Centos 7. Use a Gparted disk that can be uploded in .... 1. Boot through gparted. 2. Go to the terminal 3. Check disk mapper by typing> fdisk -l For fdisk results 4. typed> sudo xfs_repair -L / dev / mapper / centos-home 5. Restart Centos 7 Hope can help readers of this blog