I am having trouble with the compact function on CloneVDI. Running it on a Windows 8.1 host, to copy and compact a recently installed Debian guest, results in a vdi file that is smaller than anticipated and corrupted such that it will not boot. Well, it boots to grub rescue because the boot directory, among others, is not accessible.
The problem seems to have arisen after updating Virtualbox to 5.1.18. Apparently none of the vdi files from my virtual machines (Debian and Xubuntu) created with 5.1.18 will successfully compact. Whereas, all of the virtual machines (Mint, Peppermint, Debian, PCLinuxOS) started prior to upgrading Virtualbox (i.e. 5.1.8, 5.0.26, 5.0.10) will compact okay. So most of my existing
vitual machines are fine, but any new ones will not compact successfully.
Am I doing something wrong? Has Virtualbox changed something in the way it creates vdi files?