Checking UFS File System Consistency (Tasks)

This chapter provides overview information and step-by-step instructions about checking UFS file system consistency.

This is a list of step-by-step instructions in this chapter.

• How to Check the root (/), /usr, or /var File Systems From an Alternate Boot Device

• How to Check Other File Systems (Not root (/), /usr, or /var)

• How to Preen a UFS File System

• How to Restore a Bad Superblock (Solaris 8, 9, and 10 Releases)

• How to Restore a Bad Superblock ( Solaris Express Release)

This is a list of the overview information in this chapter.

• File System Consistency

• How the File System State Is Recorded

• What the fsck Command Checks and Tries to Repair

• Interactively Checking and Repairing a UFS File System

• Restoring a Bad Superblock

• Syntax and Options for the fsck Command

For new information about fsck in the Solaris Express release, see Enhancements to UFS File System Utilities (fsck, mkfs, and newfs).

For information about fsck error messages, see Chapter 20, Resolving UFS File System Inconsistencies (Tasks), in System Administration Guide: Advanced Administration.

For background information on the UFS file system structures referred to in this chapter, see Chapter 23, UFS File System (Reference).