Virtualbox Disk Reduce or Disk Compact Rumi, February 9, 2016February 9, 2016 You have to do the following steps: 1. Run defrag in the guest (Windows only) Nullify free space: With a Linux Guest run this: sudo dd if=/dev/zero of=/bigemptyfile bs=4096k sudo rm -rf /bigemptyfile Or: telinit 1 mount -o remount,ro /dev/sda1 zerofree -v /dev/sda1 Or sudo apt-get install secure-delete sfill -f -z -l -l -I -v / With a Windows Guest, download SDelete from Sysinternals and run this: sdelete –z 2. Shutdown the guest VM 3. Now run VBoxManage’s modifyhd command with the –compact option: With a Linux Host run this: vboxmanage modifyhd /path/to/thedisk.vdi --compact With a Windows Host run this: VBoxManage.exe modifyhd c:\path\to\thedisk.vdi --compact With a Mac Host run this: VBoxManage modifyhd /path/to/thedisk.vdi --compact This reduces the vdi size. Src: http://superuser.com/questions/529149/how-to-compact-virtualboxs-vdi-file-size http://marianposaceanu.com/articles/how-to-reduce-the-size-of-your-vms Related Virtualbox virtualbox
Compacting VirtualBox’s VDI file size? February 8, 2017 Run defrag in the guest (Windows only) Nullify free space: With a Linux Guest run this: sudo dd if=/dev/zero | pv | sudo dd of=/bigemptyfile bs=4096k sudo rm -rf /bigemptyfile Related Read More
VirtualBox Remote May 8, 2011 VBoxRemote is an open source web interface to VirtualBox. Features Remote management and aggregation of multiple VirtualBox servers. Enterprise access control features. VirtualBox server clustering and live migration. Easily configure and provision VirtualBox Servers. Quick and easy web based creation and configuration of Virtual Machines. Platform independence. (VirtualBox + Web… Read More
Importing Legacy Windows XP or Windows 2003 from Virtualbox to Proxmox December 28, 2023 Problem Statement: I have an old Windows 2003 32 bit server running in Virtualbox. Since Virtualbox is under decommissioned, it is intended to be migrated to Proxmox VE Before Migration or export of VM from Virtualbox, following .reg file is required to be installed on Windows 2003 server to avoid… Read More