Disks admin commands Cheatsheet

fstab - mounted drives on startup

#see the file
cat /etc/fstab

# edit the file (better using ansible instead)
sudo -e /etc/fstab

See fstab doc for more info: https://wiki.debian.org/fr/fstab Ansible doc for mounting volumes: here

Get disks and partions info

df: Space available on disks

#see all
# -h option for human readable Size info in Go,To,etc
df -h

#You can also specify a file
df -h /mnt/ssd2
df -h /dev/sdc1

# see only usage of partition mounted on /mnt
# i use a "ddf" alias for this
df -h | head -n 1 && df -h | grep /mnt

Tree view of disks and mounted partition

sudo lsblk

Get mounted partitions info (UUID, LABEL, etc)

sudo blkid

Format a disk to ext4

sudo mkfs -t ext4 /dev/sdb1

Rename a partition

Make sure you have the e2fsprogs tool installed

sudo apt update && sudo apt install e2fsprogs

ext4 (works w/o umount):

sudo e2label /dev/sdb1 SSD2

ntfs (umount the partition first):

sudo ntfslabel /dev/sdb1 SSD2