We are continuing our journey to prepare for the certifications LFCS and LFCE, this time we will focus on the Storage Systems. 

There are many options to visualize/list our physical storage partitions on Linux, here there is one option:

cat /proc/partitions #listing using /proc/partitions

To have the list of the partitions with more info, we can use this command: 

(keep in mind that you need a root user or use it as sudo)

fdisk /dev/sdb

If you have some space unused on your disk you could create a new partition. The two most popular tools to create partitions are fdisk or parted

  • unpartitioned disk space
  • use fdisk or parted (or other suitable tools)
  • set partition type

Formatting Partitions:

When we partition a disk we set up space but it doesn't have any structure. 

A formatting example can be: 

mkfs -t <type> <partition>
mkfs -t ext4 /dev/sda

Keep in mind that ordinary files can also be formatted and mounted. This operation it's basically associating a file system with a directory. 

mount /dev/sda1 /mySSD

In some cases, there are special File Systems: proc, debugfs, NFS, etc. are mounted with the mount command. Example:

mount -t proc proc /proc
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