# File System Troubleshooting Photon OS includes commands to check and troubleshoot file systems. - [Checking Disk Space](checking-disk-space.md) - [Adding a Disk and Partitioning It](adding-a-disk-and-partitioning-it.md) - [Expanding Disk Partition](expanding-disk-partition.md) - [List Disk Partitions](fdisk.md) - [File System Consistency Check Tool](fsck.md) - [Fixing File System Errors When fsck Fails](fixing-file-system-errors-when-fsck-fails.md)