All Questions
73
questions
1
vote
1
answer
3k
views
Sign virtual box modules (vboxdrv, vboxnetflt, vboxnetadp, vboxpci) Centos 8
I started using Centos 8 recently, and I installed VirtualBox to manage my virtual machines, the problem that I encountered with is that my VirtualBox couldn't boot any VMs and it told me to execute ...
- 121
0
votes
1
answer
2k
views
Escape from guest CentOS by Ctrl+Alt+Del in VirtualBox
I use CentOS 7 as a guest OS in VirtualBox (host is Windows 10). When the mouse cursor is in the guest OS, the only way to get out of it seems to be Ctrl+Alt+Del. Sometime double cliking Right Control ...
- 2,093
2
votes
3
answers
5k
views
Virtual Box 'VERR_SSM_LOAD_CONFIG_MISMATCH' error when restoring a snapshot
Since I had a hard time finding an answer online, I decided to make a question here, and answer it myself, so maybe it helps someone:
I have a VirtualBox 6.1 installed on Windows 10, trying to run ...
- 131
0
votes
1
answer
1k
views
Linux CentOS installation will not start in VirtualBox
I downloaded CentOS 8 ISO (That had dvd1 postfix). This is biggest image so I guess this has everything.
I am installing this on VirtualBox 6.1, it boots up, I select install but all I get is this ...
- 1,773
0
votes
1
answer
214
views
Cannot ssh and ping into my CentOS VirtualBox
I downloaded the virtualbox image from this website: https://www.osboxes.org/centos/#centos-782003-info I uses CentOS 7.8.2003 I am able to start the VirtualBox but I cannot ssh into it. Then, I ...
- 101
0
votes
0
answers
189
views
How to make window maximum on VirtualBox and how to install KDE on CentOS 8.1?
Installed CentOS 8.1 on VirtualBox 6.1.
Have installed Guest Additions(Devices -> Install Guest Additions CD image...) to CentOS, but after reboot, it still can't make maximum size.
The second time ...
- 113
17
votes
7
answers
74k
views
Guest additionals: Kernel headers not found for target kernel
I've been having a difficult time getting Guest Additions to install on my Oracle Linux 7. I have VirtualBox version 6.1.4.
I have guest additions version 6.0.4
The machine had 4.14.35-1902.7.3.1 ...
- 171
1
vote
2
answers
11k
views
VirtualBox Guest Additions 6.0.10: modprobe vboxguest failed
I'm having "issue" while installing VirtualBox Guest Additions 6.0.10 on CentOS 8.
[VBox_GAs_6.0.10]# ./VBoxLinuxAdditions.run will end up with following error
[VBox_GAs_6.0.10]# cat /var/log/...
0
votes
2
answers
4k
views
Access denied when trying to SSH into VM as root
Starting today, when I try to connect to my CentOS VM as root, using Putty, or indeed any SSH client, I can no longer login. The connection is made, but the login itself fails. I know for a fact that ...
- 113
0
votes
0
answers
159
views
Can't ssh from macbook pro to CentOS installed on a VirtualBox
After executing:
ssh demo@localhost -p 10022 -v
The trace looks like this:
OpenSSH_7.9p1, LibreSSL 2.7.3
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config ...
1
vote
1
answer
27
views
Pulling packages from a CentOS VM in Virtual Box down to a host OS
I am looking to get a specific list of packages uploaded to an offline CentOS VM. To do this, I am spinning up a networked CentOS VM in Virtual Box to download the correct packages. Is there an easy ...
- 125
0
votes
1
answer
121
views
Install packages on centos 7.2 based on packages installed on other centos
I have a centos 7.2 installed on virtualbox, and my customer have a centos 7.2 too. I written a program fir customer and for technical reasons they can not build source on their system. For that I ...
- 101
15
votes
3
answers
35k
views
VirtualBox "Auto resize guest display" greyed out
I have a virtual machine on VirtualBox (version 6.0.6), guest system CentOS 7, host system Windows 10. Extension pack is installed. Graphics controller is VBoxVGA.
I followed the steps here for ...
- 624
0
votes
1
answer
1k
views
NGINX refused to connect localhost on CentOS VM
I am running Centos7 on a VM as a guesthost on a MAC. I have followed the following tutorial
https://www.digitalocean.com/community/tutorials/how-to-install-nginx-on-centos-7
I have two network ...
0
votes
1
answer
760
views
SSH to CentOS VirtualBox from PuTtY on an External Windows System
I have created a VM on my personal machine and the VM is running CentOS and I can ssh to that machine from my local Windows 10 machine via PuTty. However, I am not sure of how to ssh to the VM from a ...
1
vote
1
answer
481
views
how do I ssh Linux VM over virtualbox from windows
I spin up a Centos7 virtual machine over Virtualbox and trying to access via ssh from putty over windows from another machine in a same network, below are the details of my VM:
IP addresses:
Windows ...
- 111
1
vote
1
answer
849
views
CentOS 7 Virtualbox VM SSH Connection Suddenly Refused
I am new to linux and am working with a minimal CentOS 7 installation on a VM running on Virtualbox with a Win10 host.
Up until today, I was able to use PuTTy and WinSCP to SSH into the VM from the ...
- 11
1
vote
1
answer
4k
views
How can I set a static IP address in CentOS 7?
I have a CentOS 7 Minimal VirtualBox VM that I would like to set a static IP address on. I want to assign the static IP address via a Bash script within the VM (so not using the VirtualBox network ...
0
votes
1
answer
1k
views
Set static IP for virtual machine on centos
I need to set static IP addresses on my virtual machines in VirtualBox.
My host OS - Ubuntu, guest OS - CentOS 7. And the main condition - I have to ping my guest machines from a host (and they have ...
1
vote
2
answers
394
views
How to get into CLI Mode of CentOS7 Virtual Machine?
I'm using Debian Jessie with GUI as host OS on my machine. I installed VirtualBox 5.18 along with its extension file. I created a CentOS 7 Server with GUI Virtual Machine. Whenever I press CTRL+ALT+F1~...
- 99
1
vote
1
answer
7k
views
How do I get the clipboard to work in CentOS inside VirtualBox on Windows?
I have CentOS 7.3.1611 running with XFCE inside Oracle VirtualBox 5.1.16 on Windows 8.1. The other questions are for older versions or the guest/host are switched. I set Devices > Shared Clipboard > ...
- 6,056
2
votes
1
answer
384
views
How point a directory in a Headless CentOS guest (on VirtualBox) to a directory on the host machine?
I have the following setup:
HOST MACHINE: openSUSE LEAP (KDE) Linux
GUEST MACHINE: CentOS 7 (no GUI, command line only)
VM: VirtualBox 5.1.4
I have a directory on my host machine called ~/...
- 642
0
votes
1
answer
236
views
Recovery of a virtual machine (Centos, Windows, Oracle Virtual Box)
By mistake, I have deleted all files in my c:\linux\ folder where I had wmdk files corresponding to a virtual machine. Fortunately, there were in the recycle bin and I simply recovered them. ...
- 101
0
votes
1
answer
335
views
What are (if any) the benefits of dual booting a Linux distro alongside Windows instead of using Virtualbox?
I am a web developer who uses Linux (CentOs) A lot! Running Linux within windows via Virtualbox causes me some minor issues and performance lags. I was thinking about creating a partition to boot my ...
- 175
2
votes
0
answers
27
views
Vboxmanage resize HDD but not the real size? (CentOS Guest, Windows Host)
I have this situation. whereas the actual is 7.62 GB then i tried to execute the steps given from here Geekwebsite. to make it bigger to 14GB (which is 13.92GB)
Everything smoothly working... until ...
- 153
0
votes
1
answer
1k
views
Centos Vm on Virtualbox doesn't know network interfaces
I'm trying to use a Centos Vm imported in Virtual boxes.The host machine is also Ubuntu.
The problem is that I've configured Virtual box network adapters and I've tested all interface types in my Vm ...
- 103
0
votes
1
answer
2k
views
Virtualbox VRDP does not work when External authentication is selected
I have a CentOS 7 installation running Virtualbox 5.1.8, and the Oracle VM Virtualbox Extension Pack 5.1.8 is also installed. I have a few guests (CentOS as well) running and I would like to access ...
- 406
2
votes
3
answers
9k
views
Centos 7 in virtualbox - SSH: connection refused
I've been playing around with a Centos 7 server in VirtualBox, and I have a problem. For whatever reason I can't connect to the server on my Windows using Putty or cmder or whatever else.
I can ping ...
- 123
0
votes
1
answer
37
views
Does it make sense to share /usr as NAS over VMs?
I'm anticipating a number of almost heterogenous VMs. They will have the same installed applications but different configurations and application data.
It seems to me that it's probably possible for ...
- 2,248
0
votes
2
answers
696
views
Yum results in centos are incomplete?
I have recently installed the centos and i have updated and upgraded the packages and all went pretty good.Now the real problem is whenever i use yum the default package manager to search the reults ...
0
votes
1
answer
341
views
I'm getting "Bad argument setup" while running VirtualBox on Linux
I'm trying to run Oracle VM VirtualBox, and I'm getting following error:
# /sbin/rcvboxdrv setup
Bad argument setup
# cat /etc/redhat-release
CentOS Linux release 7.2.1511 (Core)
# uname -a
Linux X ...
- 2,890
0
votes
0
answers
2k
views
CentOS boots to login prompt but shows black screen after authentication
I run CentOS 6.4 inside VirtualBox on a Windows PC for work. Recently, my machine crashed while the VM was still running and had to be power-cycled. Upon reboot, everything in Windows was fine, but my ...
- 101
0
votes
1
answer
98
views
storing virtual box VMs in multiple partitions in CentOS
A CentOS 7 server has Virtual Box installed, and the default location of the Virtual Machines is in /root/VirtualBox VMs. Is there a way that I can put each virtual machine in a separate partition? ...
- 1
1
vote
0
answers
585
views
404 No input file specified. on VirtualBox, CentOS 6.5, Nginx
I have installed VirtualBox on my mac, and change the settings with VitualBox , Adapter 1 - Attached to: Host-only Adapter, Name: vboxnet0.
and install guest addistions
./VBoxLinuxAdditions.run
‘...
- 111
2
votes
1
answer
4k
views
How do I copy large datasets between two VirtualBox virtual machines?
I have two separate CentOS 7 virtual machines running in VirtualBox that is installed in a Windows 8.1 host. How do I transfer large amounts of data from one of the CentOS 7 virtual machines to the ...
- 354
0
votes
1
answer
339
views
How do I configure VirtualBox to launch a VM from an external drive?
What steps do I need to take in order to use VirtualBox to access a CentOS 7 installation that is on a detached hard drive?
Here is the situation:
CentOS 7 and Windows 7 were installed on a PC ...
- 354
1
vote
1
answer
11k
views
Installing 64 bit CentOS using VirtualBox
I downloaded VirtualBox to a windows 8.1 machine by selecting the Windows (32-bit/64-bit) installer option at this link on the Oracle web ste. But when I try to create a new Virtual Machine using ...
- 354
0
votes
3
answers
459
views
Why can't the guest of VirtualBox connect to network?
I have installed CentOS 7 on virtualbox, and network setting is NAT. The guest can't connect to network:
systemctl -l status network output likes this:
ip addr output likes this:
Could anyone give ...
- 4,123
2
votes
3
answers
292
views
How does virtualbox get the network configurations?
I am installing CentOS 7 on virtualbox. On "Network & Host Name" screen:
When toggle the "OFF" to "ON", I can see the IP, DNS, netmask are all configured:
I am curious about how does ...
- 4,123
1
vote
1
answer
990
views
converting .VDI to .VHD CentOS will not boot
I have a CentOS vm created in VirtualBox. I need to convert it to VHD to use on my hyper-V server. I used the vbox manage tool and the conversion went fine. When i try to boot it up with Hyper-V it ...
- 11
5
votes
2
answers
16k
views
VirtualBox with Centos 7 minimal install, cannot connect to network
I just installed Centos 7 on a VM I'm running from VirtualBox on a windows machine.
I installed the latest minimal release. I then went about setting up a static IP. When I try to access the machine ...
- 405
1
vote
1
answer
411
views
Networking for CentOS 6.6 on VirtualBox
I have created 2 guests with 2 Network interfaces each - all 4 of which have the "Attached To:" set to "Internal Network". The aim is to create a simple internal network with no access to the Host (...
- 113
0
votes
1
answer
1k
views
Cannot install Guest Additions on CentOS virtualbox
Windows 8.1 host, have previously successfully created a Ubuntu virtualbox on it. Now I wanted a CentOS box.
Choose Redhat 64 bit and created a virtualbox. Downloaded an iso called CentOS-7.0-1406-...
1
vote
0
answers
223
views
CentOs stopped working after update in VirtualBox
I recently updated my OS to centOs 6.4 in virtual box. Before update I had guest additions installed and everything worked fine. The screen resolution all was fine. After update to 6.6, the OS stopped ...
- 125
2
votes
2
answers
2k
views
Multiple internal networks on Virtual box (CentOS)
I have 3 NIC's (internal network) on one Virtual box Machine(CentOS 6.4) each NIC has its own network name intnet1,intnet2 and intnet3. So how I understand this is eth0 is connected to internal ...
0
votes
0
answers
591
views
Execute Virtual Box Shared Folder Mount on Startup on Cent OS 7
I try to execute a mount command on startup in Cent OS 7. With FSTabs it did not work, so I tried the following:
Creating the folder vbox-shared-folder-mount.service with the following content:
[...
- 309
0
votes
0
answers
3k
views
CentOS 7 on VirtualBox Using 100% CPU
I have CentOS 7 installed as a guest in a VirtualBox 4.3.18 virtual machine, with the latest guest additions installed too. The host operating system is OS X Yosemite running on my 2014 MacBook Pro 15"...
- 131
13
votes
3
answers
30k
views
With Centos 7 as a Virtualbox guest on a Mac Host, how can I change the screen resolution of the console / command line?
I am using the minimum install of CentOS 7 with command line access only (no graphic support installed).
After spending hours reading online about editing grub files, installing guest additions, and ...
- 243
1
vote
0
answers
863
views
Can't login to CentOS desktop as root via GUI prompt
I have CentOS 6.5 running on a VM in VirtualBox (Windows host). I had no problems logging in as root from the GUI prompt (clicking on Other and typing root, then my root password and getting the ...
- 11
1
vote
2
answers
3k
views
apache got internal error when access ldap module
I'm installed httpd 2.4, and the /etc/httpd/conf.d/ssl.conf like
WSGIScriptAlias /wsgi_app /trac/cgi-bin/wsgi_app.py
<Directory /trac/cgi-bin>
Require all granted ...
- 1,047