Resize Disk on Linux Instance

After upgrading your Instance's storage from the DewaVPS control panel, the disk size will be expanded automatically. This guide walks you through the full process.

Step 1: Stop Your Instance

Important: The Instance must be in a Stopped state before you can upgrade resources.

From the Instance detail page, click the Shutdown button.

Step 2: Upgrade Storage from Control Panel

1. Go to Instances → Virtual Machines and open your Instance.
2. Navigate to the Settings tab.
3. Click Change Resource.

4. Adjust the Disk slider to your desired storage size.
5. Click Upgrade.

Warning: Once the disk has been upgraded, it cannot be downgraded. Make sure you enter the correct storage size before confirming.

Step 3: Start Your Instance and Verify

Start your Instance again, then SSH into it and run:

lsblk

You should see the updated disk size reflected automatically. For example, after upgrading from 20 GB to 280 GB:

Before upgrade:

NAME    MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTS
vda     253:0    0   20G  0 disk
├─vda1  253:1    0   19G  0 part /
├─vda14 253:14   0    4M  0 part
├─vda15 253:15   0  106M  0 part /boot/efi
└─vda16 259:0    0  913M  0 part /boot

After upgrade:

NAME    MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTS
vda     253:0    0  280G  0 disk
├─vda1  253:1    0  279G  0 part /
├─vda14 253:14   0    4M  0 part
├─vda15 253:15   0  106M  0 part /boot/efi
└─vda16 259:0    0  913M  0 part /boot

The root partition (vda1) is automatically expanded and mounted at / — no manual resizing required.

Manual Filesystem Expansion (If Needed)

If the partition doesn't auto-expand, you can manually expand it:

1. Identify the Partition

lsblk

2. Expand the Partition

sudo growpart /dev/vda 1

3. Resize the Filesystem

For ext4:

sudo resize2fs /dev/vda1

For XFS:

sudo xfs_growfs /

4. Verify

df -h