virtualbox.org

I have spent the last week trying to get two Ubuntu Virtual machine running under Windows 10.

My goal is to have both running LAMP and Samba for local development.

The host is an AMD64 with 16GB and six cores. Several terabytes of HDD.

I have been unilaterally unable to get the two virtual machines to run consistently.

Ubuntu often just quits during software install and then starts in terminal mode.

My question is whether or not I'm kidding myself as to what I can do with this hardware. Am I asking too much of this hardware? Am I spinning my wheels?

Thanks

The hardware sounds more than adequate.

The operating system is in question. You mention:

delpi767 wrote:get two Ubuntu Virtual machine running under Windows 10.

yet you post in Linux Hosts. The host is the computer, the guest is the virtual machine.

Is Windows your computer's operating system?

Sorry, that's my error.

The host is Windows 10/64

The guests are Ubuntu 20.04/64

If the hardware is adequate, I'll give it yet another go.

Very good. I'll move this post to Windows Hosts. To start a diagnosis and hopefully a fix:

Start the guest from full power off, not save-state. Run until you see the problem happen, then shut down the guest from within the guest OS if possible. If not possible, close the Virtualbox window for the guest with the Power Off option set.

Please right-click the guest in the main Virtualbox window's guest list, choose Show Log.

Search the far left tab's log for this text:

Attempting fall back to NEM

If you find it, Hyper-V is enabled and needs to be disabled. See HMR3Init: Attempting fall back to NEM (Hyper-V is active). (Docker might enable Hyper-V.)

If you don't find that text, save the far left tab's log, zip the log file, and post the zip file, using the forum's Upload Attachment tab.

As long as you don't overallocate RAM for your VMs you should be totally fine. Given than you have 16GB of RAM, I'd give these two VMs at absolute most 12GB (and even that looks excessive). To be safe, I'd limit their overall allocated RAM to 8-10GB, i.e. 4GB for each of two VMs.