Quickly inspect disks, partitions and mounts with a single, glanceable command. 16.11.2025 | reading time: 2 min Want a fast map of disks, partitions and mounts? `lsblk` reads the kernel device tree and prints block devices in a human-friendly tree so you can see which partition lives on which disk and which devices are mounted where. Live example Run a quick listing and inspect filesystem types and mount points: ```bash $ lsblk -f NAME FSTYPE LABEL UUID MOUNTPOINT sda ├─sda1 ext4 3e2b1f6d-9fa4-4f50-8e2b-1a2b3c4d5e6f /boot ├─sda2 lvm2_member 8b7c6d5e-4f3a-2b1c-0d9e-8f7a6b5c4d3e / └─sda3 swap b1a2c3d4-e5f6-7a8b-9c0d-1e2f3a4b5c6d [SWAP] sdb vfat USB 1A2B-3C4D /media/usb ``` The tree shows parent devices, children partitions and the MOUNTPOINT column tells you where filesystems are attached. Useful options to try See filesystem fields with `-f`, craft custom columns with `-o` such as `lsblk -o NAME,FSTYPE,SIZE,MOUNTPOINT`, get machine-readable JSON via `-J` for scripts, exclude devices with `-e`, or show raw device info with `-r`; combine `lsblk` with `grep`, `jq` or your configuration scripts to automate storage checks. Where lsblk fits Use `lsblk` when you need a quick overview of block topology; fall back to `blkid` for stable UUID probes, `fdisk` or `parted` for partition editing, and `udevadm` or kernel logs for low-level device events when something fails to appear. Next steps Start exploring your own system with `lsblk` and try scripting its JSON output for inventory tasks; if you want a structured learning path, consider exam-focused preparation for CompTIA Linux+ or LPIC-1 and intensive courses like bitsandbytes.academy to sharpen practical Linux skills. Join Bits & Bytes Academy First class LINUX exam preparation. storage utilities boot-process
