How can I expand the disk space of the root directory in Ubuntu?

2 years ago
Benjamin Taylor
2 minutes

To expand the disk space of the Ubuntu root directory, you can follow these steps:

  1. Firstly, make sure you have an available and unallocated disk space. You can use disk management tools like GParted or command line tools like fdisk to view and manage disk partitions.
  2. Install the Logical Volume Manager (LVM) tool in the system. You can install LVM using the following command:
sudo apt-get install lvm2
  1. Open the terminal and run the following command to create a new physical volume:
sudo pvcreate /dev/sdX

Replace “/dev/sdX” with the path to your unallocated disk space, such as “/dev/sdb”.

  1. Execute the following command to create a new volume group:
sudo vgcreate new_vg_name /dev/sdX

Replace “new_vg_name” with the desired volume group name.

  1. Execute the following command to create a new logical volume:
sudo lvcreate -l 100%FREE -n new_lv_name new_vg_name

Replace “new_lv_name” with the logical volume name of your choice.

  1. Format the new logical volume as an ext4 file system. This can be done using the following command:
sudo mkfs.ext4 /dev/new_vg_name/new_lv_name

Replace “new_vg_name” and “new_lv_name” with the names of the volume group and logical volume you created earlier.

  1. Run the following command to mount a new logical volume:
sudo mount /dev/new_vg_name/new_lv_name /mnt
  1. Copy the existing root directory (including all files and folders) to a new logical volume. You can use the following command:
sudo cp -a /oldroot/. /mnt/.

Replace “/oldroot” with the current root directory path.

  1. Open the /etc/fstab file to set the new logical volume as the root directory. You can do this by using the following command:
sudo nano /etc/fstab

Next, add the following lines to the end of the file:

/dev/new_vg_name/new_lv_name / ext4 defaults 0 0

Save and close the file.

  1. Reboot the system. Your root directory should have been resized.

Please remember to back up important data before performing any disk operations. Also, if you are unfamiliar with disk management and the Linux operating system, proceed with caution or seek professional help.

bannerAds