Installing Ubuntu on Oracle VM Virtual Box: Failed to open the optical disk file - linux

I need to install Ubuntu 64-bit on Windows 7 64-bit using Oracle VM Virtual Box.
I downloaded Ubuntu Desktop iso file, opened the settings of VM and selected the disk image of Ubuntu.
After this the following error message appears. How to solve this issue?
UPDATE: I tried both 34-bit and 64-bit Ubunto. Both fail.

Either your ISO is broken or you selected the wrong OS when creating the virtual machine. Try to redownload the file from the Ubuntu home page and mount it again.
You can follow the steps from here. Eventhough its for Ubuntu 14.04, the steps will not change.

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Booting a raw file of cloned aws instance on KVM

I am trying to boot a cloned image on KVM ,which is in the raw format, the image is a clone of aws ubuntu 14.04 LTS hvm instance. It gives me an error saying no bootable device found. The same image boots up when I specify the kernel path explicitly while creating the VM.
I am using virt-manager to create the VM and the qemu version is 2.0.0
I have tried changing the disk bus but nothing helped.
Can anyone help ?
It was because of the partitions on the Ubuntu 14.04 LTS. Cloned the entire disk. Boots up fine now.

ISO file path not an option when installing Linux on virtualbox

When installing Linux on a virtualbox with a windows 7 64bit host
I get the following screen
All the tutorials I have watched on how to install Linux on a virtualbox always skip this screen
I am using a iso file but I do not see an option to enter the path of said iso file
do I need to copy the file to a cd? or am I missing a setting for the virtualbox?
The way VirtualBox (or virtualization in general) works, is that when on the host (the Windows PC running the VirtualBox) you mount the ISO file as a CD/DVD drive, it will be shown as CD/DVD on the client (your Linux installation). The client won't see the difference.
So in that sense you are doing it correctly. However, you have the "wrong" installation ISO. The file you have mounted is "Oracle Linux R6 Update 5 UEK Boot ISO x86_64 V41364-01.iso" (if I googled correctly). So the question in your first screenshot asking about the installation image is to my understanding asking for where the actual installation data can be found. This would be either a DVD, another harddrive, local repository in LAN, or from the Internet. In your case it would be easier to use an installation media, which already includes the installation files, which would be "Oracle Linux R6 Update 5 x86_64 V41362-01.iso" (again if I googled correctly).
So to sum up, either download the full installation image (around 4 GB), or use the one you have and point the "url" to an image from the Internet.

How to set up Virtualbox 1366x768 resolution for a Linux guest?

I have been trying maybe weeks now to figure out how to configure VirtualBox to have 1366x768 resolution on a linux guest, which is on a windows 8.1 host.
My configuration:
Windows 8.1 as host
Linuxmint 17.1 as guest (tried ubuntu and debian too but no luck)
Virtualbox 4.3.26 and its extension pack
Laptop is powerful with 16GB ram and 4GB Nvdia
My problem is that it doesn't matter what I used, nothing worked.
Please do not post the answers on most known websites, I tried them already.
Once your VM is started, you need to run the VBox Linux Guest Additions.
First try to run it from the VirtualBox window's menu:
Devices >> Insert guest Additions CD image...
and follow the instructions.
If that fails, open a terminal and go to the directory where you CD reader is mounted (/run/media/ on Fedora or /media/ on Ubuntu for example).
Then type command sudo ./VBoxLinuxAdditions.run
Complete instructions can be found on the VirtualBox user manual
Once Guest Additions are installed, reboot your virtual machine. You should be able to resize your screen to your heart's content.
I installed the new VirtualBox 5.0.0_BETA2 and it solved my all problems. Great product is getting ready! Cant wait the latest release. more than a PERFECT software. Now you can remove top bar and/or bottom bar easily. Show what you need.
If you are having problem like me with 1366x768 I recommend you to install latest versin of VB even if it is Beta!

How to open VMDK file

I've downloaded the OpenbravoEFP zip file for windows from sourceforge. After extracting the file I've found two files (i) openbravo-3-i386.vmx and (ii) openbravo-3-i386.vmdk.
How can I install the software with these files ? Have I downloaded wrong files. I want to run the software in windows XP.
Please help.
Openbravo supports VirtualBox appliance(.vmdk) and VMplayer appliance(.vmx)
Launch VMware appliance
Install and Run VM Player.
Click on File -> Open Virtual Machine and select the vmx file you
have uncompressed.
After boot you can login in the testing appliance
Click here for more information from openbravo wiki page
VDMK are image files for a virtual machine, like VMware. See here: http://en.wikipedia.org/wiki/VMDK
So you could use that image to run it on a simulated computer instance on your host machine and try it out there.

How to install VMware Tools on VMware Workstation 7.1.6 on host machine

I am attempting to install VMware Tools on VMware Workstation 7.1.6 on my Linux Redhat host machine. I have searched for a source to download but have been unsuccessful. Can anyone provide a link to where I can download VMware Tools for Linux Redhat OS?
I am trying to install VMware Tools so I can run a repair on a Windows 7 VM that has a corrupted Windows Boot File causing an error to be displayed when I attempt to power on the machine.
I am running VMware Workstation 7.1.6 x64 and the file I am attempting to repair with built in utility command on VMware Tools is Windows 7 x64. Please let me know if anyone has experienced a similar issue and if the VMware Tools utility command works to repair/restore corrupted or missing Windows Boot files.
vmware tools came up with workstation only, you can right click on VM menu, you can install,
Generally it will not automatically install the tools, it will mount an iso like cd rom to the vm,
you need to mount it and extract the tar file, then run the vmware-tools-install.pl file

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