Expand Hyper-V disk after creation in Linux guest system

July 31, 2023 · 1 min · 158 words · Me

Just short note about it, as from time to time I need to increase volume size.

Part 1 - In host system

Get list of VMs
```
Get-VM
```

Turn off the VM.

$vmName = "YourVirtualMachineName"
Stop-VM -Name "$vmName"

Expand the disk

Get-VHD -VMName $vmName
Resize-VHD -Path "VHD_PATH" -SizeBytes 100GB

Check the changes
```
Get-VHD -VMName $vmName
```

Start the VM & connect to VM

Start-VM -Name "$vmName"
Connect-VM -VMName "$vmName"

Part 2 - Inside VM

Install guest tools for VM (if it wasn’t done before)
```
sudo apt install cloud-guest-utils
```

Work with virtual disk

lsblk # to find the correct disk name and partition
sudo growpart /dev/sda 1 # choose the partition of hard drive to increase, in this example sda and 1 partition
sudo resize2fs /dev/sda1 # resize filesystem in the partition, in this example sda and 1 partition

Check the changes
```
df -h
```

That’s all.

Additional links