Introduction
In this post we will look at commands that relate to disks in Linux.
Commands
- Information display:
lsblk,blkid - Partition creation:
fdisk,cfdisk,gdisk,cgdisk,sgdisk,parted - Mount:
mount,umount - File system:
mkfs,fsck - File system (ext2 / 3/4):
resize2fs,dumpe2fs,tune2fs - Swap:
mkswap,swapon,swapoff - SMART Information display:
smartctl - LVM:
lvmdiskscan,pvdisplay,pvscan,lvdisplay,lvscan - Dealing with Bad sectors:
badblocks,ddrescue - Finding out which directory is consuming space:
ncdu
Information display
You can find almost all the information with fdisk -l You can tell whether it is MBR or GPT by looking at “Disk Label Type”. It doesn’t show where it’s mounted, so use the mount command.
Use Fdisk -l
root@master:/home/ozyrys# fdisk -l -o +UUID
Disk /dev/loop0: 42.18 MiB, 44220416 bytes, 86368 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes