For the “Version”, we are going to be using the 圆4 desktop image, so we are going to select Debian (64-bit). Example: kali-linux-2023.1-vbox-amd64).įor the “Type”, we set it as Linux. We are keeping it generic in this guide (as Kali is a rolling distribution, and we update it), however for our releases, we use the version number in the name as it is a fixed release ( kali-linux-YYYY.N-vbox-ARCH. This name is also used in any filenames (such as the configuration, hard disk and snapshot - which isn’t changed from this point). The next screen is “Name and operating system” which is where you name the VM. Upon starting up VirtualBox, select “New” (Machine -> New).
It can bring a Core i7 to the ground.You may need to enable virtualization in your BIOS/UEFI for (e.g. Ubuntu does bad things when this is enabled.
Avoid 2D and 3D accel settings, until you have everything else working the way you like. Server VMs should stay with 9MB of vRAM don't waste it. Desktop VMs should get all 128MB of display vRAM. 
Enable ACPI and AHCI for all guests from 2003, WinXP and later. It is possible to use virtio drivers under Windows, it is just a little harder. For Windows guests, use the SATA (storage) and Intel PRO/1000 (network) drivers. Use the VirtIO drivers for Storage and Networking. Never allocate more CPUs or RAM than you should. Keep large files elsewhere, outside the vStorage. VDI / qcow2 sparse allocations do reduce performance, but the reductions involved appear to be less than 10% since 2015. 
On spinning HDDs, pre-allocate the entire virtual disk. I don't know much about Player, but Vbox defaults are not good for Ubuntu releases that prefer a real GPU. If this is not a configuration problem, does it mean my machine is too weak for virtualization? My cpu is Intel® Core™2 Duo CPU T5450 1.66GHz × 2. Opening Firefox will cause the system monitor to show cpu usage 100% in the guest, while the host shows that both cpus are evenly working around 60%. Idling with the system monitor open the (single) guest cpu never gets below 55% and could rise to 80 - 90% just by moving the mouse around. Is there anything I overlooked that could solve my problem?įeel free to ask for more info, and thank you for any help. I have 2 cpus and I can't give them both to the virtual machine. 
The host bios does not include a configuration option for machine virtualization. I am running a Toshiba m200 laptop with 4GB ram and shared video memory. I had a look around and I found contradicting opinions on VirtualBox versus VMware (free) so I thought to keep the former.īoth systems are updated, I installed the additions on the guest and I evenly split memory and video memory (64MB) between guest and host. I run a guest ubuntu 12.04 on a host ubuntu 12.04, with VirtualBox, and the guest is much, much slower than the host ( ALT+TAB takes 4-5 secs).
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