How to Use FSCK to Repair Ubuntu File System Errors Remount the filesystem partition and reboot your machine if necessary.Execute the fsck command ( fsck -p) on the unmounted filesystem partition.Unmount the filesystem partition you identified from the above step ( umount /dev/sdx) to give fsck full diagnosis and repair power on any identifiable OS file system issues.Use the fdisk -l command to identify the existing OS system partition labels associated with the filesystem you are interested in repairing.There are a number of important rules to follow before attempting file system repair using the fsck command. Sudo privileges are necessary for the correct execution of the fsck command. To comfortably use fsck utility without running into any issues, you need to be a root or Sudoer user on your Ubuntu system. The standard syntax for fsck command-line utility is as follows: # fsck This file repair tool requires that the immediate Linux user be familiar with the basic understanding and usage of the Linux command line environment and its associated commands. Most Linux operating systems come preconfigured with the fsck (file system check) terminal-based utility. However, this headache has a valid prescription if you can pinpoint or identify the filesystem partition that is causing your Linux OS to have performance issues. HOW TO FIND CORRUPTED FILES ON UBUNTU HOW TO![]() Whether you are an experienced Linux administrator or an elite Linux user, dealing with Linux file system errors can be a headache for anyone.
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