ext4

Identity

• Kernel module: Built-in (ext4 — no separate package needed)
• Userspace tools: e2fsprogs package (apt install e2fsprogs / dnf install e2fsprogs)
• CLI tools: mkfs.ext4 (alias: mke2fs -t ext4), e2fsck, tune2fs, resize2fs, debugfs, dumpe2fs, blkid, findmnt
• Config: /etc/fstab (mount options), no daemon config file
• Logs: journalctl -k | grep ext4 (kernel messages), dmesg | grep ext4

Key Operations