Toolbox Aid

August 9th, 2024 2:22 PM Mr. Q Categories: Command

fsck: File System Consistency Check and Repair

Description: Checks and repairs inconsistencies in file systems. Running fsck is essential for maintaining file system integrity, especially after improper shutdowns or if there are disk errors.

• Basic Usage:

  sudo fsck /dev/sdX

Replace /dev/sdX with the specific device or partition you want to check.

• Common Arguments:
• -A: Check all file systems listed in /etc/fstab.
• -C <fd>: Print progress information to the specified file descriptor.
• -f: Force checking even if the file system seems clean.
• -n: No changes will be made, useful for a read-only check.
• -p: Automatically repair the file system without user intervention.
• -y: Assume “yes” to all questions, making automatic repairs.
• Sample Command and Output: Command:

  sudo fsck -f /dev/sda1

Output:

  fsck from util-linux 2.31.1
  e2fsck 1.44.1 (24-Mar-2019)
  /dev/sda1: recovering journal
  /dev/sda1: clean, 123456/7890123 files, 1234567/9876543 blocks

Using fsck with appropriate options helps ensure that your file system is free from errors and is functioning correctly.