I am running Ubuntu Server in a Windows 8 host. When I click the "Devices>>Insert Guest Additions CD image", I am greeted with a prompt that says:  "Unable to insert the virtual optical disk : Would you like to try to force insertion of the disk?"  What should I do with this? Should I "Force Mount" or "Cancel"?
20441
I've recently installed Ubuntu on Oracle's Virtualbox.  Now I want to install the guest additions.  I started up my Ubuntu guest OS, clicked "Devices" and chose "Install Guest Additions". Nothing happened, and I don't see the CD icon on my desktop.  How can I make this work?
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Hi I was looking to install this with or under VMware on windows 7 64bit, is this possiable and where can I find instructions on how to do so? I have searched the site and can not find anything for help on installing this with VMware.  Also I have VMware Workstation do I need VMware player?
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I recently installed Ubuntu Server edition 13.10 (Saucy Salamander). But I have run into a bit of problem. At the end of the installation, it asks about several extra packages whether you want them or not, like OpenSSH server and virtual machine host. Here's what I'm looking at:  Now, my problem is that I can't remember if I have checked the &quot;virtual machine host&quot; checkbox. How do I check if my server has the corresponding packages? What packages come with the virtual machine host?
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Aka: How can I convert a .vdi or .vmdk to a real installation on a physical disk? Is it possible/feasible to migrate a Virtual Machine installation of Ubuntu onto a physical machine? If possible, how difficult would this be to accomplish and what steps would i need to take to prepare for the migration. I'd like to do some testing on a VM and if it works out migrate that system to physical hardware instead of reinstalling everything. Is this possible?
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Since the vmware virtual machine drivers are pretty standard I don't see any technical reason for a preinstalled image not to be portable.  Although the above situation is obvious, I didn't find any preinstalled vmware image for Ubuntu.  Is there a trusted free vmware image or an OVF image with Ubuntu preinstalled?   Note: OVF image works !
3254
Please help! I have 3 desktops and 1 laptop and bring the laptop everywhere and keep the 3 desktops at home and they all have Ubuntu on them and I would like to access media and any kind of files I have on all of them through or with my laptop when I'm traveling! All 3 desktops and 1 laptop are all 32 bit systems! So how can I install and run Ubuntu Server on 32 bit systems?
82476
Is there any way you could revive Guest Sessions in a future LTS distro?  Guest sessions are good security - they give me just enough power to do what I need to do on a daily basis without risking my system. In short, Guest sessions save me from myself.  I had upgraded from 16.04 to 18.04, gotten a problem I couldn't fix and was all to happy to wipe and rebuild my hard drive and return to 16.04.  I can't be the only one who feels this way.
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These instructions () doesn't work for Ubuntu Server iso. Doing dd if=ubuntuserver.iso of=/dev/sdb doesn't work either. In both situations, after the Ubuntu Server installer boots correctly, it says it hasn't found any CD drive and stops.  I've a USB stick where I've put the content of Ubuntu Server iso on it. I've configured Syslinux (with no APPEND parameter) pointing to vmlinuz+initrd present in "install" folder. The installer boots correctly but it hangs with an error saying it doesn't find the CD-ROM.  If I replace the vmlinuz+initrd with the "hd-media" ones (available ) I get another error: installer can't find any iso file anywhere (which is logical because I don't have any iso, I have the expanded tree on sdb1).  So I can't boot Ubuntu Server 16.04 from a USB stick.
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I followed the steps but still can't drag and drop files to Virtualbox guest OS.  I went to Settings, General, Advanced, clicked Bidirectional on both Shared Clipboard and Drag N Drop and i still can't drag or copy anything to the guest OS(Win7). Am i missing something?
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Does each KVM guest require its own copy of the bootable ISO image? If I'm thinking correctly, the guest only needs to read the .iso, not lock it or anything, so multiple guests should be able to use the same ISO. Or am I approaching the problem the wrong way?  Thanks in advance for your time!
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Is it possible to mount a virtual hard disk (VHD, HDD, VDI, VMDK) on Ubuntu? How can this be done?
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I have the ISO image file (that is, *.iso) and I am trying to boot my  installation with this image. Is it possible? I know how to mount my ISO image to my filesystem (on my host machine), but I don't think VirtualBox boots an OS from a location on my file system.  I've even tried to mimic mounting, such that VirtualBox thinks it has to boot from the CD drive, but this failed.   What is the correct way to boot an OS from an ISO image in VirtualBox?  My host machine is Ubuntu 10.04 (Lucid Lynx) and my VirtualBox version is 4.1.4.
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I want to have a directory which is accessible on both Windows 7 installed on Ubuntu host, and the Ubuntu as well.  So I have installed the Virtualbox additions on both Windows and Ubuntu.  Then in Ubuntu:  sudo mkdir /media/win7share sudo mount -t vboxsf win7share /media/win7share   I get:  /sbin/mount.vboxsf: mounting failed with the error: No such device    What do I need to type in Shared folders in Virtualbox Manager settings? What do I need to set up on Windows?
80873
I would like to install Ubuntu on my Windows 7 64-bit PC to do analysis of astronomy data. The data files are often large (can be few hundred MB, possibly a GB). The data files may be located on an external hard disk. The PC has 6 GB RAM and 670 GB hard disk.   I'm trying to decide whether to do a proper dual-boot, installing Ubuntu in its own partition (I'm nervous of messing around with the hard disk, have never done it before) or to run Ubuntu using VirtualBox in Windows. How much slower is running in Virtualbox likely to be?   If I do go for a traditional dual-boot, would it make sense to divide the hard disk more or less equally between the two OSs?  I would be very grateful for some advice.  Many thanks Kevin
82808
I am running Ubuntu 14.04 from Windows, using virtualbox 5.0. I tried several options to make size of Ubuntu in virtual box larger, but none helped so far.   I am using latest virtual box with latest guest add on installed. sudo apt-get install virtualbox-guest-dkms virtualbox-guest-utils virtualbox-guest-x11 I went to Ubuntu 'software and Updates' and made sure that under 'Additional Drivers' tab, 'using x86 visualization solution...' is active. In virtualbox window, under view->virtual screen 1, all 'resize to' options are disabled.   None of these options helped. This is frustrating. Any comments or help? Can the problem be I am using 64 bit system? Does this problem occurs in earlier/later versions? If not, please suggest a 'good' version of Ubuntu for virtualbox.
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I have been trying to install a fresh copy of Ubuntu 14.04 (64 bit version) on my desktop PC from a USB memory stick, but I'm experiencing a problem.  Each time I attempt an install I received an  "[Errno 5] Input/output error", followed by the following message before the installer exits:  "The installer encountered an error copying files to the hard disk: [Errno 5] Input/output error This is often due to a faulty CD/DVD disk or drive, or a faulty hard disk. It may help to clean the CD/DVD, to burn the CD/DVD at a lower speed, to clean the CD/DVD drive lens (cleaning kits are often available from electronics suppliers), to check whether the hard disk is old and in need of replacement, or to move the system to a cooler environment."  In order to attempt to remedy this I have so far tried installing Ubuntu to two different hard disks, one of which is brand new, and each time I have received the same error "Errno 5" message. I have also tried installing from 3 different USB sticks using torrent and Ubuntu site iso images burned using both Unetbootin and Startup Disk Creator.  Again, these measures have proved fruitless.  The installation process varies depending of the iso I use, with the Ubuntu download page iso exiting at an earlier stage compared to the torrented iso.  The later torrent iso returns an error and exits when I am prompted for my name, computer's ID and password.  I've never experienced anything like this when installing previous versions of Ubuntu.  I'm absolutely stumped!  Does anyone have any more ideas?
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I am trying to install Guest Additions in VirtualBox with Windows XP host and Ubuntu 12.04 guest. I followed the above steps:  Devices-&gt; Insert Guest Additions CD Image. After that I locate the folder /media/VBoxAdditions4.3.4_91027/ and run sudo ./VBoxLinuxAdditions.run   I want to be able to create shared folders and adjust the resolution of the screen. I achieved to do the first issue, but I couldn't do the second one. I didn't get any message, however it is not possible to change the resolution of the screen and I cannot switch to fullscreen. What am I doing wrong?  I found in the instal log the following message: unknown version of the X Window System. I've tried the solution of the proposed link but I got the following message:  Building dependency tree        Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation:  The following packages have unmet dependencies: virtualbox-guest-x11 : Depends: xorg-video-abi-11                     Depends: xserver-xorg-core (&gt;= 2:1.10.99.901) E: Unable to correct problems, you have held broken packages.   I tried also to install with the command sudo apt-get install virtualbox-guest-dkms but nothing is changing. During the installation of dkms I got the message: Error! Bad return status for module build on kernel 3.13.0-32-generic(i686).