setting up a fresh VM (VMWare ESXi 6.5) of Ubuntu 16.04.5 (fresh install), and when i launch bitcoin core (to allow it to sync up to the chain) the whole VM freezes up. got plenty of ram, cores and drive space setup for the VM. the 10 other VMs on my server box are running fine.
First take a look to the minimum requirements:
Minimum Requirements
Bitcoin Core full nodes have certain requirements. If you try running a node on weak hardware, it may work—but you’ll likely spend more time dealing with issues. If you can meet the following requirements, you’ll have an easy-to-use node.
Desktop or laptop hardware running recent versions of Windows, Mac OS X, or Linux.
145 gigabytes of free disk space, accessable at a minimum read/write speed of 100 MB/s.
2 gigabytes of memory (RAM)
A broadband Internet connection with upload speeds of at least 400 kilobits (50 kilobytes) per second
An unmetered connection, a connection with high upload limits, or a connection you regularly monitor to ensure it doesn’t exceed its upload limits. It’s common for full nodes on high-speed connections to use 200 gigabytes upload or more a month. Download usage is around 20 gigabytes a month, plus around an additional 140 gigabytes the first time you start your node.
6 hours a day that your full node can be left running. (You can do other things with your computer while running a full node.) More hours would be better, and best of all would be if you can run your node continuously.
Note: many operating systems today (Windows, Mac, and Linux) enter a low-power mode after the screensaver activates, slowing or halting network traffic. This is often the default setting on laptops and on all Mac OS X laptops and desktops. Check your screensaver settings and disable automatic “sleep” or “suspend” options to ensure you support the network whenever your computer is running.
If you have that hardware in your virtual machine and it still freezing, then you should try with other operative system like centos.
