When switching over to Linode, One function went missing. What function you may ask? Well, I was unable to track quota. I was unable to enable quota in webmin too. After some Google searching I found this article at wlindly.com. Unfortunately, it was for CentOS, and apparently, when adding a symbolic link in Ubuntu it doesn’t stay when adding it to /dev. To fix this issue you must save it to the rules.d. This is what I did to enable it:
echo 'KERNEL=="xvda" SYMLINK="root"' | sudo tee -a /etc/udev/rules.d/10-local.rules ln -s /dev/xvda /dev/root quotaon -a
Yay, so finally, I was able to enable quotas in webmin and have it tracked in virtualmin!! Go me!!!