121–130 of 168 posts
Earlier quoted context omitted.
As opposed to what? Most proprietary tools don't have good documentation either. And then you may not even be able to look at the code to see what it does.
I don't get why he's downvoted. Virtualbox (which is not proprietary), VMWare, Hyper-V are way easier to use. That's a fact. And not many people need to look at the code in real life...
Earlier quoted context omitted.
Launching QEMU directly is not merely "tricky", but incredibly inefficient and ineffective once you need something that's beyond bare minimal. E.g. here is a minimal QEMU command-line that gives you access to a serial console in the guest: `qemu-system-x86_64 -display none -no-user-config -nodefaults -m 2048 -device virtio-scsi-pci,id=scsi -device virtio-serial-pci -serial stdio -drive file=/export/cirros.qcow2,forma…
There's a lot to be said for running qemu from the command line, vs the complexity and opaqueness of libvirt. For example you can put the invocation in a script and check it into version control, and it will work on anyone's Linux box. You can easily debug the config and be suire about what options qemu was given. Yes, there may be many switches in the invocation, but at least they are in one place, the invocation sy…
qemu-system-x86_64 \
-display none \
-m 2048 \
-serial stdio \
-drive "$(printf "%s"
file=/export/cirros.qcow2, \
format=qcow2, \
if=virtio
)"Earlier quoted context omitted.
> its not true that libvirt adds nothing of value, it adds easy networking support, easy snapshots, a nice gui interface, a very nice remote protocol and clients (that seamlessly support both graphical and serial output, aswell as on the fly reconfiguration of VMs without restarting them), template VMs (including one time initial provision setup), easy support for storage pools including remote ones, an easy way to m…
No, not everything it does can be done by qemu directly, plenty of it lies outside of the scope of QEMU entirely, like managing networks (not just network devices), or storage pools, setting up permissions for device redirection, or doing the legwork for VM provisioning and configuration (including net booting and automatically running appropriate scripts), or managing access to VMs both locally and remotely. Its fin…
Earlier quoted context omitted.
Launching QEMU directly is not merely "tricky", but incredibly inefficient and ineffective once you need something that's beyond bare minimal. E.g. here is a minimal QEMU command-line that gives you access to a serial console in the guest: `qemu-system-x86_64 -display none -no-user-config -nodefaults -m 2048 -device virtio-scsi-pci,id=scsi -device virtio-serial-pci -serial stdio -drive file=/export/cirros.qcow2,forma…
> like running the QEMU process as an unprivileged user, Anyone can run your example "qemu-system-x86_64 -display none -no-user-config -nodefaults -m 2048 -device virtio-scsi-pci,id=scsi -device virtio-serial-pci -serial stdio -drive file=/export/cirros.qcow2,format=qcow2,if=virtio" from the command line/bash, as non-root user, yet libvirt which requires root to install, and is expecting root to configure it, is bett…
EDIT: Nevermind, `-enable-kvm` also doesn't need root. I'm not sure what libvirt uses root for.
Earlier quoted context omitted.
Using QEMU directly is a bit tricky and it's not really intended to be used in that fashion by most users, unlike VirtualBox. Both gnome-boxes and virt-manager use QEMU under the hood though, and they provide a point-and-click experience. I use virt-manager myself and I do not think it's any more difficult than VirtualBox is.
We have several windows vms running in virtualbox. All have rdp/vnc for specialised programs. (These are offline). Everytime I tried to migrate to qemu or virt-manager or gnome-boxes it was a real nightmare especially installing SPICE+virtio drivers+ networking. I read in Phoronix the performance of virtualbox is subpar and all KVM/qemu is the way to go. Please, could the OSS community build a easy to use GUI that SP…
I would say forget spice + libvirt graphics layer. Use RDP, if on linux remmina work's great. RDP will outperform in my experience SPICE. I've also had constant troubles with the vga/qxl/virtio graphics.
Secondily for virtio: https://docs.fedoraproject.org/en-US/quick-docs/creating-win...
There is an iso at the above link. Grab that and have it added during install. When you get to the select a drive. None will show up until you load the virtiostorage driver.
There are a lot of nuances to first setting up a windows vm. But the performance is great. It has removed the need for a windows install for gaming at all.
Last week, I intended to replace VirtualBox with QEMU for my personal use. The spartiate documentation made it really hard. I lack the competence to seriously contribute. The official documentation just explains the numerous parameters. It also points to tutorials (wikibook, etc), which unfortunately are very basic and out of sync. Even Arch Linux does not provide a good documentation (lack of clarity, some obsolete…
Launching QEMU directly is not merely "tricky", but incredibly inefficient and ineffective once you need something that's beyond bare minimal. E.g. here is a minimal QEMU command-line that gives you access to a serial console in the guest: `qemu-system-x86_64 -display none -no-user-config -nodefaults -m 2048 -device virtio-scsi-pci,id=scsi -device virtio-serial-pci -serial stdio -drive file=/export/cirros.qcow2,forma…
> `qemu-system-x86_64 -display none -no-user-config -nodefaults -m 2048 -device virtio-scsi-pci,id=scsi -device virtio-serial-pci -serial stdio -drive file=/export/cirros.qcow2,format=qcow2,if=virtio`
That's far more than I typically put in my qemu calls. You can technically be fine with just:
qemu-system-x86_64 foobar.qcow2
I use Virtualbox on home PC to dev. I ssh into it and use tmux/vim as my IDE. Is there a better setup for performance on windows? Should I bite the bullet and get myself a Windows Pro upgrade for Hyper-V? If my memory serves well you Hyper-V can't have Hyper-V and Virtualbox at the same time.
True. I use vmware and my ubuntu vm is faster than my windows host. This makes hyper-v and docker on windows incompatible, though. I run i3 inside vmware. I would expect virtualbox to be ok too, for this use case.
Anybody here using QEMU? What is your use case?
LTT [1] did a video recently about running macOS on a Linux host using QEMU. Anyone here tried that? If so, what's the experience like? Thanks [1]: https://www.youtube.com/watch?v=ATnpEOo3GJA
I do this using Proxmox (QEMU under the hood), and it's been mostly a nice experience. I currently run 3 VMs on a single Linux box with 3 GPUs (one per VM via VFIO passthrough). I've used both NVIDIA and AMD graphics cards with success. Before Mojave, NVIDIA cards were easier with their web driver, but Apple and NVIDIA don't get along in Mojave (both companies are blaming each other) and there is no web driver. So fo…
Earlier quoted context omitted.
You use NixOS as your daily operating system? What’s that like?
I've been using it on my personal laptop for the past two months. There are a lot of rough edges to the desktop experience, but it generally works. And while that's faint praise, I have no current plans to switch back to Fedora (3 years) or Debian (12 years prior to that). It's comforting to know that my entire base system configuration is declarative, and it's pleasant to not worry about libraries conflicting or unn…