About a month ago I got an email about problems with upgrading VMware tools on a Linux VM. When upgrading VMware tools all modifications done in /etc/fstab after the VMware tools section would be deleted. I never got the chance to actually test it myself but now a KB article popped up and confirmed the bug. Apparently the engineers are working on it so expect a fix/update in the near future. Michael Wilmsen of Wilmsen Automatisering pointed me out to this bug.