VirtualBox: how to extend view in the graphic mode? - virtualization

I have CentOS-5.6 running on the Oracle's VirtualBox. I would like to know if it possible to have it in full-screen size when running X Window applications. I know such feature is available with VMWare player (you need to download additional vmware tools).
Thanks.

You can follow the instructions on VirtualBox's site for installing Guest Additions. That should allow the screen to automatically resize when you fullscreen VirtualBox. In addition, you may have to adjust the screen resolution in X afterwards if Guest Additions alone don't solve your problem.

You need Virtual Box guest extensions.
In order to install them you first need the RPMForge repository added for yum, follow these instructions:
http://wiki.centos.org/AdditionalResources/Repositories/RPMForge#head-5aabf02717d5b6b12d47edbc5811404998926a1b
Then run this command in a terminal:
yum install dkms

Related

Raspbian update independent of Motioneyeos update?

I have installed Motioneyeos on a Pi Zero and on a Pi2, and it works like a charm in both of them. The control of the 2 systems can be unified on the web server of any one of them. The web interface is clear and allows to customize hundreds aspects of the program. Anything perfect so far.
Trying to understand a little bit how does it work, I have logged to one of the 2 Pis through ssh and I have checked that the OS is kept to a bare minimum. uname -r returns 4.19.65.
On the web interface of the app it is possible to check if the last version of the program is the one running. I have checked, and yes, I have the last version.
My question is: does it make sense to upgrade the OS components used by the program (apt update, apt dist-upgrade) even if the last version of the program is the one running in my Pis? Apt is not even installed, so the first thing would be to bring it there and install it, but I am afraid that if I update the OS, the program may stop to work...
I answer myself thanks to the feedback received in another forum. Motioneyeos is an embedded software based on Buildroot and as such it is not possible to install any package on it. To be able to install a package on Motioneyeos, Motioneyeos has to be installed on an full OS as Raspbian following the instructions in Motioneyeos web ==>>

How to 'factory reset'/reinstall OS on the Intel Edison

I've filled up my Intel Edison 100% and have no room for anything more. I've emptied all logs and am still at 100%. I decided I want to factory reset and reorganize next time with the SD card better. Unfortunately I cannot find out how to reinstall completely the OS.
I've tried downloding the Yocto linux image off the intel downloads page, and uploading that to the Edison. However, it still is running the same as before...
For some reason I distinctly remember (pretty sure anyway...) reading a command to 'reset' everything. I just can't find any documentation now that I need it. Does anyone know how to do this?
Found the command, it's reboot ota
This is my checklist
Install dfu-util (on Linux: sudo apt-get install dfu-util)
Download Release 3.0 Yocto* complete image and unzip it
Connect the module using both USB connectors.
Run sudo ./flashall.sh --recovery
Wait for the script to finish and then a few extra minutes for the module to boot.
I've found one USB hub that didn't work, I had to connect directly to the USB port on the computer.
I'm not sure if you need both usb connectors but at least the one for main power is needed.
flashall.sh is found in the unzipped directory.

Fix Screen Resolution for Centos 6 in VMWARE

How can I fix the screen resolution for centos (6.5 or 6.6) in vmware workstation or vmware player?
This works for VMWARE running in both a Windows 7 and centos 6.5/6.6 enviroments.
This was a problem I ran into with centos 6.5 and centos 6.6 on vmware workstation and vmware player(7.0.0 build-2305329). In the display section I can't select a display resolution that is suitable for my monitor. Simple remove (you might want to back up this file but I think it is unnecessary) this file
/etc/X11/xorg.con
as a root user. Like so
sudo rm /etc/X11/xorg.con
Then restart your system. Now in the top bar (menu bar) on your desktop, go to system, preferences, display.
In the display section you can now choice what ever resolution you like.

How is Github Enterprise hosted?

How exactly does github enterprise (or similar services) allow you to install it and host on your own servers without being open source?
I'm not very familiar with GitHub Enterprise, but it appears it's just a OVF package (commonly used format for packaging an entire virtual machine) that you just import and go.. a full stack including the OS and all. It's not something you just install alongside other things like WordPress (or at least it doesn't appear to be.)
As someone mentioned, it's an Open Virtualisation Format image which you can run in VMWare, VirtualBox or IBM Power. You can read more in the GitHub Enterprise FAQ.
The Virtual Image runs a Linux OS and the GitHub software. Most of the work has been done for you, it's pretty much plug and pay (licence for 40 users runs at $10k/year last time I checked).
GHE is available as appliance and you can import the downloaded ova file to vmware and can configure it from the GUI after installation

How to test a small kernel in a VM?

Say I developed a small kernel and I wanted to try it out in a VM.
If I have the kernel image, how would I get it into a VM in VirtualBox, for example? More importantly, how do I get a bootloader like Grub installed into the VM?
I think the easiest way might be to install some version of Linux, and then edit your grub config files to add in your own kernel, Add it as another boot option.