XenServer
Adding Ubuntu VM free disk space
Source: vmotionhost.com
Verify Disk Space:
df -h
Check the partition layout
sudo fdisk -l /dev/xvda
To create new partitions, all old partiotions have to be deleted. To be able to delete the swap partitions the swap has to be turned off.
Verify Swap usage:
free -m
Turn off Swap disk
sudo swapoff -a
Now delete all partitions
sudo fdisk /dev/xvda