To avoid this issue with GNOME Boxes, I had to configure Guix System to add my user account to the libvirt group and enable the virtlog and libvirt system services as below.
(users (append (list (user-account
I found this in the ArchLinux wiki page (Last edited on 27 April 2020)
QEMU or VirtualBox
The default mouse emulated by QEMU and VirtualBox has severe problems
in both gpm and x with positioning and clicking. The position becomes
unsynchronized with the host, so there are areas that can't be hovered
over without repeatedly exiting and re-entering the window....
If you tried to rename .iso file to .img and
run /opt/qemu/bin/qemu-system-x86_64 -hda install.img -hdb virtioa.qcow2 -nographic it will show you this error.
Try to use .img file example: pfSense-CE-memstick-serial-2.4.4-RELEASE-p3-amd64.img
I realize this is a very old post but I just recently solved this exact problem by submitting patches to libvirt. Starting in libvirt v6.10, you'll be able to specify the "fmode" and "dmode" options on 9pfs shares which control the default host permissions on files and directories, respectively.
If you can't run v6.10, I found a ...
GNOME Boxes uses QEMU under the hood. By default, it "emulates" a network for the guest, where it simply "passes through" on the guest the same Internet access capabilities that the host has. The host itself can be accessed by the IP address of the default gateway, which is 10.0.2.2 by default. The guest should be able to access the ...
No the difference between VM and container is not state.
Yes Docker can forget some state, not configuration. But will normally forget changes make to the file-system, when it is re-started. However it can be configured not to do this. However you probably don't want to do this.
The main difference is that a VM virtualises the hardware. You have to run a ...
I'm not sure in virtualbox, but you can pass through a wifi interface with kvm.
Consider that when you do it, the interfase must belong to it's own IOMMU group, or you must pass through all the devices in that IOMMU group
Of course that's not an emulation, that transpassing the device directly to the VM.
Docker containers will remember their configuration. So whatever you setup should come back up when you restart it with docker start or it automatically restarts. Networking config is done when you initially create a container with docker run. So there's still some risk of trashing your container and losing it's config.
A better option is to use docker-...
When making a VM, why would I want to not pass it all my cpu cores?
By the title of your question, seems like you are mixing two completely different things. "Passing" would mean dedicating it to the exclusive use by the VM. That is not what you're doing when you are setting the number of "virtual CPUs" in Virtualbox. And although the ...
Because you will increase the amount of context switching that happens when any of the VMs are under any non-negligible load. Context switching is much more expensive when running under a hypervisor. Here are some recent performance measurements of virtualization overhead I made.
There are other benefits to limiting each VM to fewer CPU cores that you have - ...