virtualbox

Infopackets Reader Calli P. writes: " Dear Dennis, We are running one of our virtual machines on Virtualbox, but the performance is extremely lackluster and is very slow to respond, especially over a remote desktop session. I have read reports ... online that suggest VMware Workstation has nearly double the performance of Virtualbox and would like to migrate. After reading a few articles online, I tried exporting the Virtualbox VM to .OVA format (open virtualization format) in hopes of importing the single .OVA file into VMware Workstation, however, I get an error on VMware Workstation that says ... (view more)

Infopackets Reader William B. writes: " Dear Dennis, I am running a server virtual machine inside of Virtualbox and it's been quite slow. I've read that VMware Workstation has twice the performance (roughly). Out of curiosity, I tried to export my ... current virtual machine in Virtualbox using the Open Virtualization Format (.OVF or .OVA) but I get an error every time I try to export: ' Could not create the exported medium Server-disk001.vmdk (VERR_IO_CRC) .' I am not sure what to do and would like to export this virtual machine off of Virtualbox so I can give VMware Workstation a try. " My ... (view more)

Infopackets Reader Calli P. writes: " Dear Dennis, I we just upgraded our server machine which includes all brand new hardware. The new server hardware will act as a Hypervisor, and are currently using Virtualbox to run our 'server' virtual machine. ... After copying over the server virtual machine to the new hardware, however, Virtualbox won't boot the virtual machine, stating ' Nonexistent host networking interface , name Intel I210 Gigabit Network Connection (VERR_INTERNAL_ERROR)', with an E_FAIL error 0x80004005 . I am not sure what to do and I need help! " My response: I asked Calli if she ... (view more)

Infopackets Reader Steve G. writes: " Dear Dennis, I run a small business and we use Virtualbox to control our virtual server (Windows Server 2016). We had a hardware problem with the hypervisor machine, forcing us to copy the virtual server onto ... another machine temporarily for a week. Now that we're done fixing the hypervisor machine, it's time to move the virtual server back over. The problem is that I get an error message from Virtualbox stating that " Cannot start virtual machine because the following physical network interfaces were not found ... (etc)" It then gives the option to " ... (view more)

Infopackets Reader Bill G. writes: " Dear Dennis, My question is about how to compact a VHD file (virtual disk). I recently virtualized an old Windows 2016 server and am using Virtualbox as my hypervisor. In the process of updating and configuring ... the virtual machine, I created 3 snapshots (live backups) in case I needed to undo changes. The .VHD is the Server 2016 C Drive and was originally only 60GB - however, I noticed that the 'snapshots' folder has grown to a massive 168GB! I went into virtual machine's snapshot window and deleted all the snapshots, hoping to free up space on the disk ... (view more)

Infopackets Reader Fabian A. writes: " Dear Dennis, I have a very old Dell Windows 2003 Server with a PERC RAID card set up for storage. We are trying to convert this old server into a virtual machine, then migrate to Windows Server 2016. I tried ... using the utility Disk2VHD to image the C drive into a .VHD file, then run the .VHD file using Oracle VirtualBox. Unfortunately, I keep getting 'a disk read error occurred' every time I try to boot the virtual machine. I have read your credentials and am very impressed with your knowledge, and was wondering if you could help us convert this server? ... (view more)

Infopackets Reader Sal S. writes: " Dear Dennis, Thanks so much for helping me fix the remote desktop 'another connection is in progress' error ! I have another question. As I mentioned, we use VMWware Workstation extensively for running virtual ... machines on our Windows 10 'server' computers. I recently installed Oracle VirtualBox on the same system running VMWare Workstation, and now my network is not working on any of my virtual machines. I cannot connect to the Internet on any of the virtual machines, nor can remote desktop into any of the virtual machines. I have tried uninstalling and ... (view more)

Infopackets Reader Sal S. writes: " Dear Dennis, My company runs a network of computers. Some of the computers run Windows 10 with 64 GB of RAM and VMWare Workstation (which run virtual machines). I use Windows Remote Desktop (RDP) to manage these ... 'Windows 10 Servers' remotely. Recently I had to install Oracle VirtualBox on the main Windows 10 server, and now I cannot connect to it using RDP - I have to use TightVNC instead. When I try and connect using remote desktop (RDP), I get an error message: ' Your computer could not connect to another console session on the remote computer because you ... (view more)

Infopackets Reader Steve P. writes: " Dear Dennis, I am trying to convert my Macrium Reflect disk image backup into a virtual machine by using the 'Macrium ImgtoVHD' utility. The problem is that ImgtoVHD aborts every time, telling me ' The vhd file ... could not be created or written to '. The backup I'm trying to convert is from an old machine which died and I really need to get this working so I can export data from a program. Can you please help? " My response: I have had this problem before and the solution (in a nutshell) is to create a blank virtual machine, then restore the backup onto the ... (view more)