How to run libvirt ubuntu headless mode? - virtual-machine

I have created a simple vm ubuntu1604server using virt-manager on ubuntu1604desktop native. I can sucessfully run the vm with a window using the virt-manager gui, but I wish to run this vm in headless mode instead.
Is this possible and how is it achieved?
p.s. I've received a few downvotes, if there is ambiguity in the question then please can you point this out?

Turns out I was misuing virsh list.
The following works for me:
virsh list --all
virsh start <name>

Related

install weblogic on VM with Solaris OS

I stuck in install weblogic on my vm solaris. i try that
java -d64 -jar fmw_12.2.1.3.0_wls.jar
and i got an error
Checking monitor: must be configured to display at least 256 colors. DISPLAY environment variable not set. Failed <<<<
Any solution for these error?
This happens if you want to do an graphical install of the system without having a X11 running. The error message is quite normal for such an situation.
You could:
Not running the installer in the graphical mode by doing a silent install (please refer to https://docs.oracle.com/cd/E24329_01/doc.1211/e24492/silent.htm#WLSIG131 for information)
Install the nescessary package to have an X11 and stuff running in your VM with pkg install solaris-desktop. Then execute the java command again from the GUI . This obviously only works if you can get a the graphical output of the VM for example via VNC or other tools.
You could set the DISPLAY variable to an installed X11 implementation. For example i use Xquartz on my Apple notebook. Then configure DISPLAY and XAUTHORITY correctly. Or you could simply log into the Solaris system with ssh -X . I prefer the second one, as it does everything automatically.

Unable to run tests against Safari 11 remotely (ssh, CI)

I'm having troubles running Ruby/RSpec tests against Safari 11 when I'm trying to run tests via ssh manually or via Jenkins (where machine where Safari exists is remote slave).
When executing tests, I'm getting following error:
Selenium::WebDriver::Error::WebDriverError:
unable to connect to safaridriver 127.0.0.1:7050
What is weird is that I'm able to run tests when I'm logged to the Mac machine directly. This leads me to the conclusion that there could be some permission which, by default, disables execution from ssh session but not sure why?
Also, to my knowledge, Safari Driver is part of Safari 10+ and as such is not installed anymore as extension
Update: I've found out that safaridriver executable that should be spawned by tests cannot be spawned from some reason when I login via ssh.
Example:
/usr/bin/safaridriver -p 7050
It will just terminate with non-zero exit code while running same command directly on machine will run safaridriver in foreground. Since I expect Jenkins to be running test job on this machine, my idea to overcome this issue would be to launch safaridriver on this machine (by cron or launchctl) and then use this instance to connect to it with my tests. However, so far, I was not able to make my tests (Selenium/Capybara) re-use existing safaridriver instead of always trying to spawn new one on different port. Any idea on this would also be greatly appreciated.
This is my environment:
OS: MacOS Sierra 10.12.6
Browser: Safari 11.0.2
Thanks in advance
There is a possible workaround to do this. First you need to create a Automator Workflow or Apple Script that launches the SafariDriver
Then save this as a application. Let assume we name it SafariDriver7050.
Then from the SSH session you need to execute
open /Applications/SafariDriver7050.app
This will actually launch SafariDriver in the logged in session and it should work for you.
The caveat being shutting it down, you will need to first kill the SafariDriver7050 app and then you need to kill the safaridriver process. The order matters, else it will create a error dialog on UI
Edit-1:
As you suggested, it would be even easier to do this, when you wrap your test as a app and then it will be automatically be able to launch SafariDriver without any issues. The key to issue is using open command in a SSH session
Edit-2
Why does SafariDriver not work in SSH? Well if you look at the linux counterpart
In case of linux we can use the DISPLAY environment variable to launch an app in an existing display or we can use something like XVFB to launch the browser in a virtual display. That is the concept that most frameworks use in case of linux machines.
But Mac doesn't have such kind of feature, which is why this workaround is needed. Now why it doesn't have that, I am not sure. There may be some other workaround that I may not be aware of, so anyone who has valuable info, can help improve this part of the answer
For my case:
On OSX host side was created Automator app as described above and modified a little bit:
security unlock-keychain -p your_host_password /Users/$USER/Library/Keychains/login.keychain-db
safaridriver --enable
safaridriver -p 7050
On CCI/Jenkins side:
open /Applications/StartSafariDriver7050.app/
run pytest cmd
osascript -e 'quit app "StartSafariDriver7050"'
pkill safaridriver
In Python:
def safaridriver():
return webdriver.Safari(desired_capabilities=Caps.SAFARI, port=7050)

How to setup webdiver to perform actions in background?

I am currently working in Automation QA. Our project using Java: jbehave, thucydides, selenium. We are working in Ubuntu OS.
Every time I run my tests, I have to stop doing everything(coding, browsing the web), because every click or any action of selenium is taking driver window(we are using chrome driver) in focus(makes window active) and if i do something i mess up the test. Our team is wasting a lot of time because of this.
We have tried Phantomjs, it doesn't work correctly, cannot find elements etc... And also to run tests in virtual machine using vagrant isn't working for us(for company specific reasons).
It is fine if Chrome driver will take over active window when it starts, as long as it would continue performing different actions in background. Strange, but in my previous project(windows, c#, mstest) chromedriver would behave exactly like this without any additional setup.
Please help, I know few other teams having this issue. Seems like this issue only on Mac and linux.
After having this issue for a long time I have finally found a good solution. This issue still remains on ChromeDriver level, so if there are any updates on this side let me know.
The easiest way to run tests in Ubuntu in a background is using VNC Server. Here are the steps you should follow:
Install vnc server from ubuntu terminal:
sudo apt-get install vnc4server
Start server with any number(I use 7). First time doing it enter password for vnc server(Remember it!).
vncserver :7
To start server in full screen add "geometry" to last command with your screen resolution for example:
vncserver :7 -geometry 1920x1080
Download some VNC Viewer. I use Real VNC.
Go to Real vnc viewer, start new connection and enter:
VNC Server: localhost:7
Encryption: Let VNC Server choose
Press connect and enter your vnc server password(the one from step 2).
New window should be opened, open new terminal in it.
Run your test from terminal. I use java maven project so for me it works like this. Navigate to project folder and run: mvn clean install
If you want simply to run test in hidden mode using only terminal(without opening vncviewer) use this command:
cd path/to/project
xterm -display localhost:7 -e mvn clean install
If you want to stop server:
vncserver -kill :7
Hope this will help many of you.
For me (I had the same problem in my Grails project's functional test using Chrome; not with Firefox) works this set up:
ChromeOptions options = new ChromeOptions();
options.addArguments("--start-maximized --disable-popup-blocking");
new ChromeDriver(options);
Regards

VBoxManage: error: Failed to create the host-only adapter [closed]

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I am running vagrant 1.4 and virtual box 4.3 on fedora 17 machine. When I do "vagrant up", I get this error:
Bringing machine 'default' up with 'virtualbox' provider...
[default] Clearing any previously set forwarded ports...
[default] Clearing any previously set network interfaces...
There was an error while executing `VBoxManage`, a CLI used by Vagrant
for controlling VirtualBox. The command and stderr is shown below.
Command: ["hostonlyif", "create"]
Stderr: 0%...
Progress state: NS_ERROR_FAILURE
VBoxManage: error: Failed to create the host-only adapter
VBoxManage: error: VBoxNetAdpCtl: Error while adding new interface: VBoxNetAdpCtl: ioctl failed for /dev/vboxnetctl: Inappropriate ioctl for devic
VBoxManage: error: Details: code NS_ERROR_FAILURE (0x80004005), component HostNetworkInterface, interface IHostNetworkInterface
VBoxManage: error: Context: "int handleCreate(HandlerArg*, int, int*)" at line 66 of file VBoxManageHostonly.cpp
I had the same problem today. The reason was that I had another VM running in VirtualBox.
Solution:
Open VirtualBox and shut down every VM running
Go to System Preferences > Security & Privacy Then hit the "Allow" button to let Oracle (VirtualBox) load.
Restart VirtualBox
sudo "/Library/Application Support/VirtualBox/LaunchDaemons/VirtualBoxStartup.sh" restart
You should now be able to run vagrant up or vagrant reload and have your new host configured.
As mentioned in this answer, recent versions of macOS can block VirtualBox.
Solution:
Go to System Preferences > Security & Privacy Then hit the "Allow" button to let Oracle (VirtualBox) load.
(thanks to #pazhyn, #lsimonetti & #dave-beauchesne for clarifications)
For Mac OS X 10.9.3 and Vagrant 1.6.3 and VirtualBox 4.3.6 this problem was fixed with restarting the VirtualBox
sudo "/Library/Application Support/VirtualBox/LaunchDaemons/VirtualBoxStartup.sh" restart
TL;DR MacOS is probably blocking VirtualBox. Go to System Preferences > Security & Privacy Then hit the "Allow".
Solution:
Go to System Preferences > Security & Privacy Then hit the "Allow" button to let Oracle (VirtualBox) load.
MacOS by default can block kexts from loading. You must click the "allow" button before executing the VirtualBoxStartup.sh script.
Then run:
sudo "/Library/Application Support/VirtualBox/LaunchDaemons/VirtualBoxStartup.sh" restart like the answer above.
(This article provides more clarity to MacOS kernel extension loading)
This issue appears to be fixed by installing the latest version of Virtual Box.
I had this issue after upgrading to OS X El Captian. Upgrading to the latest version of VB solved the issue for me. Virtual box will give you the latest link if you go to the virtualbox menu at the top of your screen and clicking check for updates.
Got the error in Mac after the update to Mojave. Probably you have an older version of virtual box.
Update to a recent version of virtualbox. (5.2 at the time of wrting this post)
Edit: adding #lsimonetti's comment.
In addition to that upgrade to Virtualbox 5.2, you need Vagrant >= 2.0.1
If you are on Linux, simply run: sudo vboxreload
I'm running Oracle VM Virtualbox on Ubuntu 16.04 LTS.
The solution that worked was to reinstall virtualbox as mentioned here:
sudo apt remove virtualbox virtualbox-5.0 virtualbox-4.*
sudo apt-get install virtualbox
I couldn't find my VirtualBox installation folder, as such could not issue the command:
$sudo /Library/StartupItems/VirtualBox/VirtualBox restart
I had to reinstall Virtual Box on my machine.
Here's the downloads page: Downloads Page
Then vagrant up worked for me after.
If after performing what is said by #totophe and on macOS it still doesn't work, just restart your mac. Then open the terminal and vagrant up.
This usually happens after each macOS update.
I had similar problem upgrading to OSX Monterey.
Solution:
Install VirtualBox Extension (download)
Accept VirtualBox Security & Privacy/Privacy/Input Monitoring
VirtualBox can also have and lose permissions for Accessibility, check that as well
In my case, I was able to solve this issue by reinstalling virtual box. I was trying to use laravel's homestead and was having this error. Reinstalling helps creating the directories that are needed for virtual box again. Took me an hour to figure out.
I'm running Debian 8 (Jessie), Vagrant 1.6.5 and Virtual Box 4.3.x with the same problem.
For me it got fixed executing:
sudo /etc/init.d/vboxdrv setup
Tried multiple solutions but the below sequence works for me.
Virtual Box: 5.2.34
Vagrant: 2.2.5
Mac OSX: 10.14.6
First Allow access to oracle inc:
Go to System Preferences > Security & Privacy Then hit the "Allow" button to let Oracle (VirtualBox) load.
Then restart VBox by this command:
sudo /Library/Application\ Support/VirtualBox/LaunchDaemons/VirtualBoxStartup.sh restart
Now try Vagrant up again.
I've just had the same problem after upgrading to mac os Big Sur
Linus solution worked for me
Grant permission to VirtualBox under System Preferences > Security & Privacy > General (this request is new to macOS High Sierra)
Open Terminal and run: sudo "/Library/Application Support/VirtualBox/LaunchDaemons/VirtualBoxStartup.sh" restart
https://stackoverflow.com/a/47652517/6146535
$sudo /Library/StartupItems/VirtualBox/VirtualBox restart
Worked great for me on Mac. This normally happens when I shut down my computer without running
$vagrant suspend
I am using ubuntu 14.04. I have genymotion installed on virtualbox. Every time I start genymotion I had no problem, but suddenly one time it said unable to load virtualbox engine and it didn't open. I went through the log file and found out it could not create a new host only network because it has already created all possible host only networks. And the problem is that it cannot allocate memory for a new network.
Fix: go to your virtual box File --> Preferences --> Network
Click the host-only tab and just delete some of the host-only networks so that you will get some memory freed and next time, a new network can be created easily.
Deletion fixed my problem.
In my case I had to do the following to solve this error for me:
totophe's answer in combination with (re)installing the latest VM-version (https://www.virtualbox.org/wiki/Downloads) (Thanks to jacobappleton & user1718159)
Steps:
First (re)install latest VirtualBox;
Run sudo "/Library/Application Support/VirtualBox/LaunchDaemons/VirtualBoxStartup.sh" restart in terminal (not sure if this is needed in order to get the system preferences show up the allow/disallow option);
Allow in Security & Privacy
Restart your machine
Run sudo "/Library/Application Support/VirtualBox/LaunchDaemons/VirtualBoxStartup.sh" restart again.
Ready to run vagrant up again.
I fixed this error by installing VirtualBox 4.2 instead of 4.3. I think the latest version of vagrant and VB 4.3 are incompatible on a fedora system.
CentOS Linux release 7.2.1511 (Core)
VirtualBox-5.0
I came across this tread while searching Google for...
VBoxManage: error: Failed to create the host-only adapter
I was using VirtualBox-5.0 to test some virtual machines created with Vagrant and setting private networks in my Vagrantfile
web.vm.network "private_network", ip: "192.168.10.2"
When evoking the command $ vagrant up I would get the above mentioned error along with /dev/vboxnetcrl does not exist.
It seems that my version of VirtualBox did not have the proper kernel module compiled for my version of Linux and the device, /dev/vboxnetcrl, does not get created.
Since I wanted to test virtual machine and not troubleshoot VirtualBox, my work around (not a solution) was to:
# yum remove VirtualBox-5.0
# yum install VirtualBox-4.3
After that I was able to create the virtual machines with specified host-adapters. And of course, under VirtualBox-4.3, /dev/vboxnetcrl was there.
Now on to testing my VMs. And when I have time, I'll see if I can get it working under VirtualBox 5.0
If you are on Linux:
sudo service virtualbox restart
Windows 10 Pro
VirtualBox 5.2.12
In my case I had to edit the Host Only Ethernet Adapter in the VirtualBox GUI. Click Global Tools -> Host Network Manager -> Select the ethernet adapter, then click Properties. Mine was set to configure automatically, and the IP address it was trying to use was different than what I was trying to use with drupal-vm and vagrant. I just had to change that to manual and correct the IP address. I hope this helps someone else.
I had the same problem just now and it was solved by simply reinstalling to the latest version of VirtualBox.
For those on Mac OS High Sierra - the installation might fail at first but you need to go to System Preferences > Security & Policy and click on the "Allow" button to allow Oracle installing the software.
For macOS Mojave, this solution worked:
sudo "/Library/Application Support/VirtualBox/LaunchDaemons/VirtualBoxStartup.sh" restart
I faced this issue on mac.
I did the following
Go to:
Launcher->Virtualbox
Click the icon to open Virtualbox
Start Virtualbox with the button that pops up once Virtualbox starts. Wait till the terminal window gives you the prompt,
docker#boot2docker
Then try to open docker. Hope it works!
If you are sure you have allow Oracle from system preference and the error still persist. It is highly possible you have not started VirtualBox. Ensure it is running and run vagrant up again.
Finally worked for me by following Given link.
https://www.mediacurrent.com/blog/drupal-vm-failed-create-host-only-adapter/
Tried on : 06 Mar, 2021
Mac OS = 11.2.2 (20D80)
Oracle Virtual Box = Version 6.1.18 r142142 (Qt5.6.3)
~ ➤ docker-machine create --driver virtualbox Manager1
Running pre-create checks...
Creating machine...
(Manager1) Copying /Users/speedoo/.docker/machine/cache/boot2docker.iso to /Users/speedoo/.docker/machine/machines/Manager1/boot2docker.iso...
(Manager1) Creating VirtualBox VM...
(Manager1) Creating SSH key...
(Manager1) Starting the VM...
(Manager1) Check network to re-create if needed...
(Manager1) Found a new host-only adapter: "vboxnet0"
(Manager1) Waiting for an IP...
Waiting for machine to be running, this may take a few minutes...
Detecting operating system of created instance...
Waiting for SSH to be available...
Detecting the provisioner...
Provisioning with boot2docker...
Copying certs to the local machine directory...
Copying certs to the remote machine...
Setting Docker configuration on the remote daemon...
Checking connection to Docker...
Docker is up and running!
To see how to connect your Docker Client to the Docker Engine running on this virtual machine, run: docker-machine env Manager1
~ ➤
~ ➤
~ ➤ docker-machine ls
NAME ACTIVE DRIVER STATE URL SWARM DOCKER ERRORS
Manager1 - virtualbox Running tcp://192.168.99.100:2376 v19.03.12
~ ➤
What helped me on Opensuse 42.1 is to install VirtualBox and Vagrant from the official RPMs instead of from Opensuse repositories.
I encountered this problem on Windows 8.1, VirtualBox 5.1.18 and Vagrant 1.9.3.
Deleting the VirtualBox Hosts-only Ethernet Adapter from VirtualBox Preferences (Network --> Hosts-only networks) fixed this for me, and vagrant up could continue and start the VM.
I had the same problem while following a tutorial on setting up Laravel Homestead for Windows 10. The tutorial provides an example IP address 192.168.10.10 to use for the server. The problem with their example IP is that if you already have a VirtualBox Host-Only Adapter set up, the IP you use for your vagrant server must have the same first three parts of the IP address of your current adapter.
You can check what your current Virtualbox Host-Only Adapter IP address is by running ipconfig (windows) ifconfig (mac/linux) and looking for VirtualBox Host-Only Adapter's IPv4 address. 192.168.56.1 was mine. Usually if the host IP is 192.168.56.1 then the guest IP will be 192.168.56.101 so instead of using the example IP I used 192.168.56.102. Any IP that is within 192.168.56.* that is not already taken should work.
After this homestead up worked perfectly for me.
TL;DR - If your current VirtualBox Host-Only Adapter IP is 192.168.56.1, make your Vagrant server IP 192.168.56.102.

Using Enthought Canopy over SSH+Putty Fails to Start

I have Enthought Canopy installed on a machine running RedHat Enterprise Linux 5. I installed it successfully and can verify it runs.
I would like to be able to use it remotely from a windows computer, I have installed putty + xming for X11 forwarding. I can use regular applications like gedit and firefox fine. However when I try using canopy by launching ~/Canopy/canopy an empty gray box for the welcome screen appears, disappears after a few moments, and canopy exits with no return error without having started.
When I ssh with X forwarding from another linux computer, I can use canopy just fine.
There is no error code, I don't see any debug flags and I can't find any log files. I really have no idea why I cant access canopy with putty and xming.
I am trying this as a solution for interns so they can use a machine with access to our datafiles from their windows computers.
I highly appreciate any and all help.
Canopy needs some features not provided by XMing and a few other X server implementation on windows. See the following article for more details:
https://support.enthought.com/entries/21873380-Running-Canopy-Linux-via-remote-display-VNC-remote-X-display-
In short, use MobaXterm ( http://mobaxterm.mobatek.net/ ) or VcXSrv ( http://sourceforge.net/projects/vcxsrv/ )
EDIT: newer versions of Canopy have fixed this bug and should work fine with XMing