fsextinfo1

Usage

Overview

fsextinfo is a utility to determine information about an Extended File System (ext) volume

fsextinfo is part of the libfsext package. libfsext is a library to access the Extended File System (ext) format

source is the source file.

The options are as follows:

-B bodyfile

output file system information as a bodyfile

-d

calculate a MD5 hash of a file entry to include in the bodyfile

-E inode_number

show information about a specific inode or "all"

-F path

show information about a specific file entry path

-h

shows this help

-H

shows the file system hierarchy

-o offset

specify the volume offset

-v

verbose output to stderr

-V

print version

Environment

None

Files

None

Examples

# fsextinfo ext4.raw
fsextinfo 20220727

Extended File System information:

Volume information:
        File system                     : ext4
        Label                           : ext4_test
        Compatible features             : 0x0000003c
                Has journal (EXT3_FEATURE_COMPAT_HAS_JOURNAL)
                Have extended inode attributes (EXT2_FEATURE_COMPAT_EXT_ATTR)
                Resizable volume (EXT2_FEATURE_COMPAT_RESIZE_INO)
                Use directory hash index (EXT2_FEATURE_COMPAT_DIR_INDEX)

        Incompatible features           : 0x000002c2
                Has directory type (EXT2_FEATURE_INCOMPAT_FILETYPE)
                Has extents (EXT4_FEATURE_INCOMPAT_EXTENTS)
                Has 64-bit support (EXT4_FEATURE_INCOMPAT_64BIT)
                (EXT4_FEATURE_INCOMPAT_FLEX_BG)

        Read-only compatible features   : 0x0000046b
                Has sparse superblocks and group descriptor tables (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)
                Contains large files (EXT2_FEATURE_RO_COMPAT_LARGE_FILE)
                (EXT4_FEATURE_RO_COMPAT_HUGE_FILE)
                (EXT4_FEATURE_RO_COMPAT_DIR_NLINK)
                (EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE)
                (EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)

        Number of inodes                : 1024
        Last mount path                 : /mnt/ext4
        Last mount time                 : Jul 22, 2021 14:07:32 UTC
        Last written time               : Jul 22, 2021 14:07:33 UTC

Diagnostics

Errors, verbose and debug output are printed to stderr when verbose output -v is enabled. Verbose and debug output are only printed when enabled at compilation.