Please contact the moderators of this subreddit if you have any questions or concerns. I am a bot, and this action was performed automatically. Select one of your virtual machines in the list, click on Properties from the top and then use the Size slider or type the size value that you need. Thanks for taking the time to help us help you! Also, PLEASE remember to change the flair of your post to Solved after you have been helped! Method 1: Using the Virtual Media Manager in VirtualBox You can find it at the file tab of VirtualBox home page. Your post has not been deleted - do not re-submit it. If you have met these requirements, you can ignore this comment. If this is your first time creating a virtual machine, we have a guide on our wiki that covers the important steps. Please also check our FAQ and if you find your question is answered there, PLEASE remove your post or at least change the flair to Solved. D:VMKafkaWorkshop>c:Program FilesOracleVirtualBoxVBoxManage. Please check Google and the VirtualBox Manual before asking simple questions. The below command resizes the VDI disk image to 20000Mb. PLUS a detailed description of the problem, what research you have done, and the steps you have taken to fix it. Whether you have installed Guest Additions and/or Host Extensions (this solves 90% of the problems we see)
Whether you have enabled VT-x/AMD-V (applicable to all hosts running 6.1 and above) and disabled HyperV (applicable to Windows 10 Hosts) When the VM is off, go to the VM settings and make sure to have in the ‘Screen’ section the video memory at maximum (usually 128Mb) moreover the 2D and 3D video acceleration tick must be empty.This is just a friendly reminder in case you missed it. NOTE: as an alternative to the Additions command it is possible to ‘mount’ the additions disk on the VM directly from the Virtualbox tools menu a window will appear on the screen asking if you want to install the addons, you have to click on yes and reboot. The resolution should now change automatically, but if it doesn’t, just go to the control panel and screen settings: the dropdown will now be enabled. Install the VirtualBox Guest Additions apt-get install virtualbox-guest-dkms Newly created VDI file is deleted from Step 4. Check the disk space on guest OS (CentOS) it will not show the increase Delete Snapshot. And the Step I was missing: Use the description from the link to manage the disk within centos. Increase VDI disk size with above command (VBoxManage.exe modifymedium) Reboot both windows and VBox. Use GParted to assign the new unallocated space. To change the displayed resolution at will, proceed as follows: I found the answer myself, explained here: So the Steps to enlarge your virtualbox disk for a centos guest are: Use VBoxManage utility to resize the disk. You will have also noticed that going on the screen settings it is not possible to change this resolution from the dropdown. If you have installed Ubuntu Linux in a virtual machine on VirtualBox you will surely realize that by default its resolution is set to 640×480, very poor for any type of use.
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