The btrfs inspect-internal command is a command-line utility in Linux that is used to perform various internal inspection and debugging tasks on a btrfs file system. btrfs inspect-internal is a utility that is included in the btrfs-progs package, which is a collection of tools and libraries for managing btrfs file systems.
Btrfs is a copy-on-write (CoW) file system that is included in the Linux kernel and is known for its advanced features and capabilities, such as snapshotting, incremental backups, and more. btrfs inspect-internal is a tool that allows you to inspect and debug various internal aspects of a btrfs file system, such as its metadata, tree structures, and more.
btrfs inspect-internal is not intended for general use and is typically only used by developers or advanced users who are familiar with the internals of btrfs. To use btrfs inspect-internal, you will need to have the btrfs-progs package installed on your Linux system. btrfs-progs is usually available as a package in the repositories of popular Linux distributions, and you can install it using the package manager for your specific distribution.
btrfs inspect-internal Command Examples
1. Print superblock’s information:
# btrfs inspect-internal dump-super /path/to/partition
2. Print superblock’s and all of its copies’ information:
# btrfs inspect-internal dump-super --all /path/to/partition
3. Print filesystem’s metadata information:
# btrfs inspect-internal dump-tree /path/to/partition
4. Print list of files in inode n-th:
# btrfs inspect-internal inode-resolve n /path/to/btrfs_mount
5. Print list of files at a given logical address:
# btrfs inspect-internal logical-resolve logical_address /path/to/btrfs_mount
6. Print stats of root, extent, csum and fs trees:
# btrfs inspect-internal tree-stats /path/to/partition