PBX Platforms -How to Increase VMware VM Disk Size

Overview:

This guide applies only to FreePBX/PBXact V16 systems. It explains how to safely increase the virtual disk size of a FreePBX or PBXact virtual machine running on VMware, and how to extend the LVM volume group (SangomaVG-root) to utilize the newly added space.

Step 1: Expand the Virtual Disk in VMware

1. Power off the VM (optional but safer).

2. In VMware Workstation or vSphere/ESXi:

   • Right-click the VM and go to Edit Settings.

   • Select the hard disk (e.g., Hard disk 1).

   • Increase the disk size to your desired value (e.g., from 60 GB to 100 GB).

   • Click OK to save.

3. Power on the VM.

Step 2: Rescan the Disk

After booting into FreePBX:

These commands help the OS detect the new disk size without rebooting.

Verify the new disk size:

Look for the total size of /dev/sda reflecting the new value (e.g., 100G).

Step 3: Extend the Existing Partition

Your LVM is using /dev/sda2. You need to extend this partition to use the additional disk space:

1. Install growpart if not installed:

2. Extend the second partition:

Update the partition table:

3. Check disk size again:

Ensure that /dev/sda2 has grown to match the total disk size (less boot partition).

Step 4: Extend the LVM and Filesystem

1: Resize the physical volume:

2: Confirm the physical volume is resized and shows free space:

You should see VFree showing available space (e.g., 40G).

If VFree is still 0, the partition may not have been extended correctly. You may need to re-run:

3: Extend the logical volume:

The -r flag automatically resizes the filesystem. If the -r option fails or doesn't resize, do this manually:

4: Confirm New Disk Space

You should now see the increased space in /.