All Questions
Tagged with virtualization boot
55 questions
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Ubuntu 24.04 Virtual Machine stuck on Grub terminal after power loss
There are many posts regarding this error state, but I could not find one that matches my specific circumstances.
I have an Ubuntu 24.04 virtual machine running in Hyper V on a Windows Server 2022 ...
- 1
0
votes
0
answers
59
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Installation process of Ubuntu 24.04 doesn't start in VirtualBox [duplicate]
The installation process of Ubuntu 24.04 doesn't start in VirtualBox.
Can I fix this?
- 1
0
votes
0
answers
91
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booting from qemu with self-made bare minimum OS
I wrote a minimal OS to boot from in nasm.
org 0x7C00 ;because the OS is loaded at address 0x7C00
bits 16 ;because we start in 16 bit mode
main:
hlt
.halt
jmp .halt
times 510-($-$$) db 0
dw ...
0
votes
1
answer
225
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How can I Dual-Boot 2 internal SSD's (Win/Ubuntu) and have each able to run the other as a VM?
I have a new laptop on the way, it has 1TB SSD *2, 32GB RAM, i9 processor and 4080 GPU.
I want to set up dual boot - win/ubuntu each on their own SSD.
I also want each OS to be able to run the other ...
- 11
0
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0
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372
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How to load my Linux kernel from a different load address i.e. any manually specified address?
I booted the Ubuntu cloud image(https://cloud-images.ubuntu.com/jammy/current/jammy-server-cloudimg-amd64-disk-kvm.img) from qemu. I cloned qemu from https://gitlab.com/bwidawsk/qemu. git branch is * ...
1
vote
1
answer
742
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Stuck on the 'Try or Install Ubuntu' screen when booting Ubuntu in qemu emulator on Linux server. How do I troubleshoot?
I am unable to boot ubuntu ISO Image from qemu on Linux Server.
Aim : I am trying to boot a ubuntu virtual machine from qemu emulator on Linux server.
I tried the following commands.
qemu-img create -...
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0
answers
57
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Remove the most current kernel
I noticed that the "similar questions" responses are several (if not a decade) old so wanted to just check is there is a more recent way of removing the most current kernel.
During the ...
- 23
0
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1
answer
760
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QEMU/KVM virtualization problem (probably SGX)
I am trying to setup my own computer lab for networking, pen testing and learning in my own local network using virtual machines, a raspberry-pi, a Linux machine and a windows machine. My Linux ...
- 9
1
vote
0
answers
2k
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Network interface name is getting updated to eth0 from ens192
I have observed an issue where network interface name got updated from ens192 to eth0 on Ubuntu 20 OS after performing patching.
Because of this change in network interface name, docker container ...
- 11
0
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1
answer
80
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boot delay (of my own making) in 21.10 and post-boot delays in launching chrome
At the moment I am using 21.10 on a desktop as a very average user, using such applications as a browser and occasionally Open Office. It takes about 5+ minutes for the computer to boot because I have ...
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3
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0
answers
1k
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Ubuntu 21.04 (64-bit) fails to boot on QEMU raspi3 machine
I'm trying to launch prebuilt Ubuntu for Raspberry Pi on QEMU and I managed to do that successfully with 20.04.2 by following steps below.
Download the image
https://ubuntu.com/download/raspberry-pi -&...
- 131
0
votes
1
answer
1k
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Ubuntu 20.04 with xen 4.11 domU panic with pci passthrough
I started to upgrade my server from Ubuntu 18.04 to 20.04. After reinstalling xen / qemu in the dom0 XEN cannot start domains after upgrading from 18.04 to 20.04 dom0 and all domU instances worked as ...
- 11
0
votes
1
answer
306
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Deleted VirtualBox VDI while VM is running?
I accidentally deleted an ubuntu.vdi while the VM is running. Oddly, the VM is still responsive and running without issues. I expect shutting down the VM will result in total data lose. Any help would ...
- 11
0
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0
answers
2k
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(solved)VM will not boot when virtual hard drive is attached to it
I am trying to access my sd card from a guest OS in a virtual machine using VirtualBox. I have followed some instructions on how to attach a virtual hard drive to the VM (https://superuser.com/...
- 103
0
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1
answer
559
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Ubuntu 16.04 on Hyper-V: Gave up waiting for root device
I'm testing out importing an Ubuntu 16.04 VM into Hyper-V for my company. We normally use VirtualBox, but we've also imported the image into VMWare with very few issues.
Hyper-V seems to be a lot ...
- 101
0
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2
answers
282
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Is there anyway to run this command automatically when system boots up
Everytime I run my ubuntu VM I have to run source ~/.bash_profile I was wondering if there's any way which would run this command automatically as soon as I boot my VM up without me having to do this ...
- 1
0
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0
answers
139
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Does Ubuntu remember the /dev/sdXX it was installed to or will it recognize it as being run from /dev/sdXY?
New Ubuntu asker here,
If I install Ubuntu in a VM and write the VHD to a USB, will it request data from the location it was installed to (/dev/sdXX) or the port it boots from (/dev/sdXY)? For ...
2
votes
0
answers
7k
views
KVM/Qemu: VMs won‘t boot
Recently I installed several VMs (of some Linux distributions) under KVM/Qemu on my (19.04-)system. They worked just fine, but only one time, immediately after installation. Once I shut them down, ...
- 21
1
vote
0
answers
66
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How can I make a second HD separately bootable?
I have a UEFI laptop with 2 HD successfully configured to dual boot Windows/Linux, using GRUB. The factory installed disk has Windows (+ GRUB), while the second is essentially Linux. (there is a small ...
- 55
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1
answer
200
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What's the most direct way of creating a persistent live Ubuntu image file?
I'm trying to create a persistent live Ubuntu image that I can use in VirtualBox.
I can create one from inside the guest, however, it's a very slow process, as, when done from scratch, it requires ...
- 2,533
2
votes
2
answers
630
views
Ubuntu Virtual Box black screen at boot
We have VirtualBox (latest version) running on an Ubuntu 18.04.02 LTS Server.
On the VirtualBox we have several VB guests several OS like OpenBSD...
VirtualBox has been installed from repository no ...
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0
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0
answers
530
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How do I use partman preseed answers to select partition #3?
I'm trying to use a preseed file to install ubuntu onto a VM that already is partitioned using a python script. The VM stores multiple OS using MBR. I need to access the partition #3, set the ...
3
votes
1
answer
8k
views
18.04 on Win10 VirtualBox - cannot boot the installer
Host machine: Win 10 Home 64-bit; i7 @ 2.5GHz; 1TB SSD & 1TB HDD (both internal); 12GB RAM; Intel HD 4600 graphics
Trying to install Ubuntu 18.04.1 (from the Ubuntu site) desktop in VB v6.0. ISO ...
- 121
0
votes
1
answer
740
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how to mount img file (Virtually) WITHOUT loop or fuse or any loadable module in ubuntu 14.04 (running in docker without priviledge in c9.io)
I am trying to mount (plain-ext4-format) .img files in a ubuntu 14.04 running in c9.io without ability to load module or kernel tweak or fstab tweak (because it ignores fstab).i can login as root.
i ...
3
votes
1
answer
4k
views
Create bootable USB drive from virtual machine (KVM)
I know there are several similar questions but I couldn't find an answer to my situation. I use Lubuntu 16.04 in KVM and want to write this VM to a USB drive and boot from it. For this I executed sudo ...
- 1,935
1
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0
answers
112
views
Problems after upgrade to Ubuntu 18.04 on virtual hosting service
I've run into quite a snag. I'm running an Ubuntu system with a virtual service provider, so there are limits to what I can do. I have access to a Ubuntu 16.04 rescue disk.
The way this has workeds, ...
1
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0
answers
576
views
qemu passthrough stopped working
I've been working on setting up a Windows vm with gpu Passthrough on Ubuntu 17.10 through qemu the last couple of days. The farthest I've gotten was running a very similar script to this:
#!/bin/bash
...
1
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0
answers
859
views
Ubuntu 17.10 won't start on QEMU
I tried several times to install a new image of Ubuntu 17.10 on Qemu. Everytime I install and reboot, it starts for the first time Then I apply the updates, and reboot again. It gets stuck in the ...
- 1,123
1
vote
0
answers
549
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Why can't i boot directly from a disk image i made?
I had a Kubuntu 16.04.3 installed on a computer but it was slow, so I put it's HDD into an enclosure and dd-ed it. The command was sudo dd if=/dev/sdh of=/mnt/KUBUNTU.IMG; sync. After that was done, I ...
- 121
1
vote
1
answer
697
views
Error while installing Ubuntu (X86-64 CPU expected) [duplicate]
While installing Ubuntu in VirtualBox, I got error messages:
This kernel requires X86-64 CPU,but only detected an i686 CPU. Unable to boot- please use a kernel appropriate for your CPU.
How do I ...
- 11
1
vote
1
answer
240
views
Ubuntu Install screen is pixellated and has strange aspect ratio [duplicate]
I've been trying to install Ubuntu 16.04 in VirtualBox (Windows 7 host), but keep running into the same problem regardless of what I tweak in the vm's settings:
This is the second time I've installed ...
- 111
3
votes
2
answers
7k
views
qemu-system-x86_64 boot failed
I tried to boot ubuntu.iso on qemu-system-x86_64 with command "qemu-system-x86_64 -cdrom ubuntu-16.04-desktop-amd64.iso" but failed, here is warning "TCG doesn't support requested feature: CPUID.01H:...
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3
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1
answer
162
views
Ubuntu installer gets stuck with flashing screen
I'm using QEMU to setup a Ubuntu 16.04 Server VM.
I cannot get this done because somewhere at the beginning of the install process, the screen starts flashing and there is nothing more I can do. No ...
- 598
1
vote
1
answer
4k
views
Using intel_iommu=on keeps system from booting
I'm trying to build a dual desktop - Ubuntu as base OS and a Windows 10 VM for games and other Windows lockin crap.
The motherboard I'm using is the (awesome on paper) ASRock C236M WS, I put a Xeon ...
- 205
2
votes
1
answer
4k
views
Grub boot error on cloned virtual machine
While using virt-manager and connected to a Qemu/KVM Hypervisor, I cloned a virtual machine of an Ubuntu server installation, version 16.0.4 if it matters. When I try to boot the cloned virtual ...
- 429
1
vote
0
answers
483
views
Attaching disk to AWS VM causes host to boot into emergency mode
I have now had this experience in Azure Cloud & Amazon AWS my current issue is on a host running Ubuntu 15.10 but I had similar experiences on CentOS 7.1 and I'm wondering if I'm somehow doing ...
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0
votes
1
answer
226
views
Useless processes in Ubuntu 14.04 virtual server
I've used Ubuntu for my desktop for a quite while now and I have successfully migrated my only CentOS web production server to Ubuntu 14.04 x64 a little over 3 months ago and I couldn't be happier.
It ...
- 77
1
vote
0
answers
2k
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Vmware not starting Ubuntu
Ubuntu is not running.Vmware shows following context:
Setting SATA ALPM on host17 to max_performance...Done
...
...
***sched policy powersave OFF
Setting /sys/bus/usb/devices/2-2.1 to on
How to ...
- 111
1
vote
0
answers
819
views
Simulate Universal Bootloader (DAS U-BOOT) with Qemu
I was trying to simulate u-boot with qemu for the ARM based versatile_pb board.
I was successfully able to CROSS_COMPILE my u-boot source code with the gcc-linaro-arm-none-eabi-toolchain and create ...
0
votes
1
answer
3k
views
Xen vm stuck at grub prompt
How can I get my Ubuntu server booting again? Is there a tool that would auto-fix this situation?
No matter how many ways I run the "boot fixer" using a virtual image of
boot-repair-disk-64bit.iso
...
- 730
6
votes
2
answers
18k
views
grub rescue / move folder
I made a really silly
sudo mv /* /some_folder
move command on my remote server vm ubuntu 12.04
that moved my boot folder to
/home/.../somefolder/boot
I can access this folder via a ...
- 241
3
votes
0
answers
1k
views
KVM-Guest only boots single user mode
We have a Vserver Host running on Ubuntu 12.04 with KVM/QEMU and so far guests been running fine with various OS's (Ubuntu 10.04, 12.10, Debian 6,7, CentOS 5,6).
After the installation of Ubuntu 14....
- 31
0
votes
1
answer
155
views
How do I make a Ubuntu VM that boots to Terminal but has GUI capabilities?
I have to make an Ubuntu VM (Virtualbox) to run python scripts (on windows hosts) utilising GUIs like pygame, tkinter and pythonwx (especially Tkinter for my legacy apps)
Making a VM appliance with a ...
- 131
57
votes
4
answers
216k
views
"intel_rapl: no valid rapl domains" message upon boot
I install fresh Ubuntu 14. 04 server under ESXI 5.1.0.
During my installation I did not get any erorrs or strange things.
My problem is when I boot machine at console screen I get messages like
[ 6....
- 673
1
vote
2
answers
2k
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Virtualizing Windows 7 with qemu-kvm SATA Issues
I am working on virtualizing a windows 7 image using kvm on Ubuntu 12.10 64 bit. Here are the specs for my machine:
CPU: Intel i7-2860WM ,8G RAM
I am using an image created with WinImage of a ...
- 233
1
vote
2
answers
21k
views
How to enable virtualization on booting? (Ubuntu 13.10) [duplicate]
I want to use VirtualBox but it is giving me the error VT-x/AMD-V hardware acceleration is not available on your system. And in the virtual box settings, I am not able to open accelerator tab as it's ...
- 131
0
votes
3
answers
3k
views
How can I run Ubuntu inside a virtual machine on Windows 7?
When I tried to run Ubuntu in Windows Virtual PC I got this error:
This kernel requires an x86-64 CPU, but only detected an i686 CPU.
Unable to boot – please use a kernel appropriate for your CPU
...
- 29
6
votes
3
answers
38k
views
How to make vm boot from live cd
I have created a vm for ubuntu 13.04 and configured it to boot from live CD (I want to try Fedora on it), but it doesn't boot. It displays a shell terminal I think and this is it.
- 157
0
votes
1
answer
59
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My ubuntu box is not opening in graphical mode
I copied a big data in /temp of my RHEl VM. Now my system stopped booting in graphical mode.
Can anyone tell me, How can i delete /tmp of my VM without affecting my VM.
Thanks
0
votes
0
answers
24
views
System image to be loaded to QEMU [duplicate]
Is there any way to take a snapshot of my current system and load it on another computer to QEMU?
- 205