Lesson 11 - Creating a new partition in Ubuntu
26/08/2023 - 3 phút
Step 1: Check the hard disk partition
sudo df -h
So, I have a hard drive named /dev/sda
with a capacity of 20G
Step 2: Identify the Disk
Use the lsblk
command or sudo fdisk -l
to list all disks and partitions. Find the disk or partition you want to mount. It will look like /dev/sda1
, /dev/sdb
, etc.
sudo fdisk -l
Here, I have a disk named /dev/sdb
with a capacity of 480G
Step 3: Create a new partition
Use the cfdisk
command to create a new partition on the disk /dev/sdb
sudo cfdisk /dev/sdb
Choose “New” to create a new partition
Enter the amount of capacity needed to create a new partition, here I choose 480G
Choose “Write” to save
Enter yes
to confirm
Then choose “Quit” to exit
Check again with the fdisk -l
command
So, I have successfully created a new partition named /dev/sdb1
Step 4: Create a Physical Volume
Use the pvcreate
command to create a physical volume
sudo pvcreate /dev/sdb1
Check again with the pvdisplay
command
So, I have successfully created a physical volume named /dev/sdb1
Step 5: Create a mount point
Choose a directory to mount, here I choose /dev/sdb1
mkdir /mnt/data
mkdir /mnt/data/soft
Step 6: Check the Volume Group (VG)
Use the vgdisplay
command to check the Volume Group
sudo vgdisplay
Here, I see there is a Volume Group named ubuntu-vg
with a size of 20G, and sdb1 has not been mounted yet, I use the vgdisplay /dev/sdb1
command to check
vgdisplay /dev/sdb1
As we can see, /dev/sdb1
has not been mounted to any Volume Group yet, next we will create a new Volume Group
sudo vgcreate soft-vg /dev/sdb1
So, I have successfully created a new Volume Group named soft-vg
, use the vgdisplay
command to check again
sudo vgdisplay
So, I have successfully created a new Volume Group named soft-vg
and have mounted it to /dev/sdb1
Step 4: Create a Physical Volume
Use the pvcreate
command to create a physical volume
sudo pvcreate /dev/sdb1
Check again with the pvdisplay
command
So, I have successfully created a physical volume named /dev/sdb1
Step 5: Create a mount point
Choose a directory to mount, here I choose /dev/sdb1
mkdir /mnt/data
mkdir /mnt/data/soft
Step 6: Check the Volume Group (VG)
Use the vgdisplay
command to check the Volume Group
sudo vgdisplay
Here, I see there is a Volume Group named ubuntu-vg
with a size of 20G, and sdb1 has not been mounted yet, I use the vgdisplay /dev/sdb1
command to check
vgdisplay /dev/sdb1
As we can see, /dev/sdb1
has not been mounted to any Volume Group yet, next we will create a new Volume Group
sudo vgcreate soft-vg /dev/sdb1
So, I have successfully created a new Volume Group named soft-vg
, use the vgdisplay
command to check again
sudo vgdisplay
So, I have successfully created a new Volume Group named soft-vg
and have mounted it to /dev/sdb1
Step 7: Create a Logical Volume (LV)
Use the lvcreate
command to create a Logical Volume
sudo lvcreate -n soft-lv -l 100%FREE soft-vg
So, I have successfully created a new Logical Volume named soft-lv
and have mounted it to the Volume Group soft-vg
, check again with the lvdisplay
command
sudo lvdisplay
Step 8: Create a File System
Use the mkfs.ext4
command to create a file system
sudo mkfs.ext4 /dev/soft-vg/soft-lv
Step 9: Mount the Logical Volume
Use the mount
command to mount the Logical Volume
sudo mount /dev/soft-vg/soft-lv /mnt/data
Check again with the df -h
command
df -h
So, I have successfully mounted the Logical Volume soft-lv
to /mnt/data
Step 10: Automatically mount the Logical Volume when booting
Use the blkid
command to get the UUID of the Logical Volume
sudo blkid
Then add it to the /etc/fstab
file
sudo nano /etc/fstab
Add the following line
UUID=e32fee80-371a-4c92-899a-c004d1d79060 /mnt/data ext4 defaults 0 2
So, I have successfully configured it, reboot the machine with the sudo reboot
command and check again with the df -h
command
df -h