This can be done with: # fsck -y /dev/sdb In such cases you may want fsck to automatically attempt to correct the errors. Sometimes more than one error can be found on a filesystem. These cods can be seen in fsck’s manual by running: # man fsck Run fsck on Linux Partition Understanding fsck exit codesĪfter running fsck, it will return an exit code. To avoid this unmount the partition using. Here is what happens if I try to run fsck when the partition is mounted. For the purpose of this article, I will use my second drive /dev/sdb mounted in /mnt. In order to run fsck, you will need to ensure that the partition you are going to check is not mounted. How to Run fsck to Repair Linux File System Errors -V – Provide description what is being done.
-t – Exclusively specify the filesystem types to be checked.-r – Provide statistics for each device that is being checked.-P – If you want to check filesystems in parallel, including root.-N – Only show what would be done – no actual changes are made.-l – Locks the device to guarantee no other program will try to use the partition during the check.-A – Used for checking all filesystems.Below you will see some of the more important options: Their usage depend on your specific case. Attached drive (including flash drives/SD cards) is not working as expected.įsck command needs to be run with superuser privileges or root.Files on the system become corrupt (often you may see input/output error).There are different scenarios when you will want to run fsck. In this article, we are going to review the fsck utility and its usage to help you repair disk errors. This check can be done automatically during boot time or ran manually. This can be completed via system utility called fsck ( file system consistency check). If your filesystem develops such inconsistency it is recommend to verify its integrity. One way or another, with time, filesystem may become corrupted and certain parts of it may not be accessible. Filesystems are responsible for organizing how data is stored and recovered.
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