My 38-year daughter has seen the light and is now rocking a new-to-her laptop running Ubuntu Mate 20.04.3 setup. Unfortunately, she can’t be completely weaned yet from Windows 7, because there is a deprecated Microsoft Windows program on which she relies (for time being).
No problem. Old Dad can strip down the old Win7 to essentials, run the 64- bit version of Disk2vhd on it, and create a VHD file, then use that as the “drive” for the new virtual machine on the new Linux laptop, right? He’s done it before several times before with Windows XP.
Except, apparently, he can’t. Oracle VirtualBox 6.1.26 can “see” the new drive, but it’s a grayed-out option and can’t be selected. I’ve tried running Disk2vhd several times with different options, but get the same result. (I have avoided using Disk2vhd’s VDHX option, as per instructions.) FWIW, the VHD file is in the neighborhood of 260Gb. I don’t know if that exceeds an upper limit file-size limit or not.
Also I have tried the same VDH files on another laptop’s newly-installed Ubuntu Mate 20.04.3 — same result. I don’t think hardware is an issue, because her ‘new’ machine is running an Intel Core i7 10th Gen with 12 Gb of RAM. The alternate machine is only an older Intel Core i3, albeit with 16 Gb RAM (because it usually runs one or more VMs). In any event, we never get past the first step of incorporating the VHD, so the rest of the hardware setup is a moot point.
I’m time constrained, because I’m visiting my daughter in Florida, and my wife and I must return home as soon as possible. Any help would be GREATLY appreciated. Thanks.