Questions tagged [qemu]
QEMU (short for "Quick EMUlator") is a free and open-source hosted hypervisor that performs hardware virtualization.
1,078
questions
0
votes
1
answer
210
views
Does guestmount sypport ufs?
I am trying to use guestmount to inspect/modify a FreeBSD .qcow2 image (I saw several answers here, but I found nothing actually solving my problem).
I am working under Debian Sid.
Apparently image is ...
9
votes
3
answers
20k
views
Running QEMU with a root file system directory instead of disk image
In order to test the root file system i need to run QEMU with created disk image as root file system, the QEMU accepts -kernel which can be used for specifying kernel directly without deploying it ...
- 651
0
votes
0
answers
9
views
QEMU/KVM connection drops immediately after starting up virtual machine with GPU passthrough
I have a Windows 10 virtual machine with GPU passthrough in Virt-Manager. Recently it has suddenly started to crash the QEMU/KVM connection it is connected to, as in spontaneously disconnecting. Is ...
- 1
0
votes
1
answer
30
views
Does running a VM typically affect host input lag?
I'm running a Windows 11 VM via qemu/libvirt on my Fedora 40 (Plasma Wayland) host. The VM is configured to use a passthrough GPU, 25% of my cores (6), and 25% of my memory (16GB). For input it has a ...
- 101
1
vote
1
answer
2k
views
Mac os X does not boot if emulated with qemu/kvm on the WSL2
I've enabled the KVM support on my WSL2 subsystem which run on top of my Windows 10 64 bit and I tried to boot mac os X. It's a shame that it didn't work because this error :
root@DESKTOP-N9UN2H3:/...
0
votes
1
answer
2k
views
QEMU: What are "serial0" and "parallel0"? How to use them?
Host and guest both are Archlinux.
Running VM with this command:
qemu-system-x86_64 -enable-kvm -cpu host -m 2G -nic none -cdrom archlinux.iso
We have the following options under View in VM window's ...
CommunityBot
- 1
0
votes
0
answers
29
views
Is my characterisation of KVM and QEMU accurate?
I usually write essays on topics I am studying to help my understanding. Below are excerpts from my study of Virtualisation. I would like comments from real professionals on their accuracy.
KVM is ...
3
votes
4
answers
24k
views
Passing a USB device to Qemu KVM
I am trying to get my Windows VM to access my USB pen drive, but I am having problems passing this USB over to the VM.
On my Linux host machine, I ran lsusb where my device was identified as
Bus ...
0
votes
1
answer
2k
views
QEMU/KVM: USB3 passthrough to FreeBSD
I'm making my first steps in FreeBSD, so please excuse any possible "linuxism".
My goal is to run FreeBSD 10.2 inside virtual machine with QEMU/KVM and allow USB3 network card passthrough from the ...
CommunityBot
- 1
0
votes
1
answer
43
views
Which Linux kernel config options are required to get QEMU virtio to work?
I am currently trying to boot a QEMU VM with a virtio-blk hard disk and I am failing. I cannot seem to get the kernel to recognize the virtio device.
I am on a linux-6.1.97 source tree and ...
- 151
0
votes
1
answer
32
views
can't boot linux distro I made
I need some help, because when I boot my initramfs.img and my bzImage in qemu it boots normally. but then it just goes:
[ 34.354852] dracut: FATAL: iscsiroot requested but kernel/initrd does not ...
- 101k
0
votes
1
answer
2k
views
failed starting vm with libvirt/qemu permission denied
this is my first time i'm asking a question so if i can do something better please tell me.
I'm not very good in Linux things, so far i could follow along guides and the problems i had where easy ...
CommunityBot
- 1
7
votes
4
answers
637
views
Simulate slow disks in KVM to see effect of LVM cache in test setup
I'm setting up a Linux system in KVM (QEMU) to test the effect of adding a writeback LVM cache on a fast disk in front of a logical volume that resides on a set of very slow disks (a RAID1 LV). This ...
- 940
1
vote
0
answers
39
views
I am following a video on setting up Qemu/KVM. Setting up of tuned, I am having a problem with missing parameters. How can I correct these errors?
In setting up Qemu and KVM: I received the following notification.
I have seen several others with this same problem,
but I have not been able to find a post with a resolution to implement.
$ sudo ...
0
votes
1
answer
2k
views
can't launch android emulator while logged in over vnc?
i have a headless box running bbqlinux that i'm trying to use as an android-studio development box. when i go to launch an .avd in the emulator, i receive this error:
Cannot launch AVD in emulator
...
CommunityBot
- 1