2Filesystems and storage management
- 2.1Configuring and Mounting Filesystems
Learn how storage is attached to the directory tree via mounting: the persistent configuration in /etc/fstab, manual control with mount/umount, the live view in /proc/mounts, swap handling with swapon/swapoff/mkswap, and device identification with blkid/lsblk/UUID.
- 2.2Managing Filesystems
Learn to create, check, and maintain filesystems: creation with the mkfs family, integrity checks with fsck, ext-family tuning and backup via tune2fs/dumpe2fs/dump/restore, dedicated XFS tools (xfs_info, xfs_repair, xfsdump, xfsrestore), the next-generation Btrfs (subvolumes, snapshots, btrfs, btrfs-convert), and disk health monitoring with smartd/smartctl.
- 2.3Configuring and Managing LVM
Learn flexible storage management with LVM (Logical Volume Manager): the overall lvm command and lvm.conf, and the three-layer structure of pv commands for physical volumes (PV), vg commands for volume groups (VG), and lv commands for logical volumes (LV), plus practical resizing and extension.

