Three years ago I wrote a post (along with a Youtube video) about how to set up a KVM VM with Dual Monitors (or even triple monitors). Since then there’s been a bit of a change. I loaded up remote viewer and, for some reason, I couldn’t add more monitors to my Linux KVM VM. Turns out what you have to do is look at the Video (QXL) section in virt-manager. Look at how many “heads” it has listed. For example:
I’ve been looking at NAS implementations for a long time. I looked at FreeNAS for a while then OpenMediaVault. But what I really wanted was to be able to take advantage of btrfs and its great RAID abilities - especially its ability to dynamically expand. So I was happy when I discovered Rockstor on Reddit. Here are some videos in which I explore the interface and how to work with Rockstor using a VM before setting it up on bare metal.
I used to have a Team Fortress 2 server on CentOS 6 with Virtual Box. Now that I’m using KVM/QEMU/Libvirt, I wanted to set up a new one. Also, Valve somewhat changed how they worked a few years ago and I wanted a clean slate. I started with a VM with 40GB. It’s not supposed to take that much, but I remember last time it took much more than the 10GB I’d given the VM and I don’t want to have to increase the disk size again.
So, the current solution for bridging with KVM/QEMU/Libvirt involves macvtap. This allows your VM to be seen by computers on the network which is key if you want to, say, run a server or DNS on a VM. However, there’s a catch - the host can’t reach the VM. Sometimes this doesn’t matter and sometimes it does. For example, if the guest is running DNS and you want the host to be able to use it for DNS, this is an issue. There is another way to do it, but it involves ditching Network Manager. I actually like Network Manager. So what am I to do?
I have VM running Emby that I set up a while ago on an low spec machine that had been the guest computer before everyone got Chromebooks and tablets. But it only had 2GB of RAM and I gave 1GB to the VM. So I added some new RAM to bring the system up to 8GB and wanted to start off by giving the VM 4GB to see if that improved performance.
I’ve been using Virtualbox for a long time to run virtual machines when I want to check out other distros before I install them on one of my computers or to review them. It’s MOSTLY open source, although some of the key parts like USB 2.0 are free to use, but not open source. So now that Red Hat’s Virtual Machine Manager is starting to look pretty useful I figured I should check it out. That way I could be using a FLOSS virtual machine program - assuming the features were good enough to match Oracle’s offerings. Also, Virtualbox requires a kernel module that has to be recompiled every time a new kernel is installed and that’s annoying. I figured I’d test out both programs by installed a VM of Centos.
As I documented before, I’ve had problems with Pogoplug and Arch Linux running my servers. Recently I’ve been having problems logging in via SSH on my updated Fedora computers. From what I can tell from a little research, it seems the old way of connecting had a flaw so updated SSH doesn’t want talk to unupdated SSH. So I tried to update Arch Linux and once again ended up with a borked computer. And it’s not something I did wrong - everyone had complaints of the change from /usr/bin (and some other bins) bricking systems. If Pogoplug had a display, I’d have been able to fix it. I tried reinstalling, but something has changed that makes the Pogoplug no longer work. Sick of having stuff go wrong every time I update, I decided this was the time to implement the Home Server Project.
