So, I am running a macOS Mojave Host, and I have a macOS High Sierra guest (using clover for APFS support). I recently realized that I will need more drive space on my VM so I have opted to increase the vdi using the modifyhd command.
So the console commands claims that my .vdi drive is now 80GB (used to be 40).
When I boot up my High Sierra VM it doesn't seem to notice that the drive is any bigger. If I load up the High Sierra install disk and look at Diskutil, or use "df" in the terminal, I still only see 40GB. I attempted to do something like this viewtopic.php?f=22&t=64864 (sorry, can't post URLs) but that didn't seem to work as the initial problem seems to be that macOS doesn't seem to think the drive has expanded at all.
I have tried searching for an answer for quite a bit of time, and I have not been able to solve the issue.
Has anybody solved this at all?