https://entorb.net//wiki/index.php?action=history&feed=atom&title=VirtualBox 2026-05-06T10:24:15Z Revision history for this page on the wiki MediaWiki 1.43.1 https://entorb.net//wiki/index.php?title=VirtualBox&diff=4865&oldid=prev 2024-10-30T20:28:37Z

<p></p> <p><b>New page</b></p><div>[[Category:Software]]<br /> ===How to reduce the size of the virtual disk image===<br /> [http://superuser.com/questions/388733/virtualbox-how-to-free-up-unused-vdi-disk-place]<br /> [http://my.opera.com/locksley90/blog/2008/06/01/how-to-compact-a-virtualbox-virtual-disk-image-vdi]<br /> <br /> # Delete / uninstall some stuff<br /> # Defrag hard drive (Windows VM only) e.g. using [http://www.defraggler.com Defraggler]<br /> # Write zeros to hard drive blocks of free space to enayble compression of the disk image<br /> # Compact the VDI virtual disk image (in host system) by running <br /> VBoxManage modifyvdi image.vdi --compact<br /> <br /> To zero-fill the free space:<br /> &lt;br&gt;Linux<br /> cat /dev/zero &gt; zero.fill;sync;sleep 1;sync;rm -f zero.fill <br /> Windows: use [http://www.feyrer.de/g4u/nullfile-1.02.exe nullfule]<br /> <br /> ===Solution for Slow Ubuntu in VirtualBox ===<br /> see [http://blog.jdpfu.com/2012/09/14/solution-for-slow-ubuntu-in-virtualbox]<br /> <br /> ===Change UUID of Disk Image (for duplication of images)===<br /> VBoxManage internalcommands sethduuid image.vdi</div>

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