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Mounting your second disk

If you have a second disk in your computer, you can mount it to your system to use it as a storage device. In this guide, we will show you how to mount your second disk to your system.

To view all the disks in your system, you can use the lsblk command. The lsblk command is a tool to list block devices. You can use the lsblk command to list all block devices in your system.

List all block devices
$ $ lsblk 
NAME        MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
nvme0n1     259:0    0 931.5G  0 disk 
├─nvme0n1p1 259:1    0   512M  0 part /boot/efi
└─nvme0n1p2 259:2    0   931G  0 part /
nvme1n1     259:3    0 953.9G  0 disk

In the example above, we have three disks in our system: nvme0n1, and nvme1n1. To mount the second disk nvme1n1 to /opt/disk2, you can follow these steps:

  1. Create a mount point directory for the second disk.
sudo mkdir -p /opt/disk2
  1. (Optional) Format the second disk.
sudo mkfs.ext4 /dev/nvme1n1 # The second disk. Replace it with your disk name.
  1. Mount the second disk to the mount point directory.
sudo mount /dev/nvme1n1 /opt/disk2 # /dev/nvme1n1 is the second disk. Replace it with your disk name.
  1. Write /etc/fsab to mount the disk automatically on boot.

The mount command only mounts the disk temporarily. To mount the disk automatically on boot, you can write the disk to /etc/fstab.

# /dev/nvme1n1 is the second disk. Replace it with your disk name.
echo "/dev/nvme1n1 /opt/disk2 ext4 defaults 0 0" | sudo tee -a /etc/fstab

After rebooting your system, the second disk will be mounted to /opt/disk2.

To verify that the second disk is mounted, you can use the df command and lsblk command.

List all mounted disks
$ sudo df -Th
Filesystem     Type      Size  Used Avail Use% Mounted on
efivarfs       efivarfs  192K  160K   28K  86% /sys/firmware/efi/efivars
/dev/nvme0n1p1 vfat      511M  6.1M  505M   2% /boot/efi
/dev/nvme0n1p2 ext4      916G  417G  453G  48% /
/dev/nvme1n1   ext4      938G   28K  891G   1% /opt/disk2

In the example above, the second disk nvme1n1 is mounted to /opt/disk2.

That's it! You have successfully mounted your second disk to your system. You can now use the second disk as a storage device.