Installer sees installation HDD as bigger than it is

[Snowhog]

I've never seen this before; ever.

I downloaded Debian's 9.6.0 .iso file.

I created a 75.0 GB virtual HDD (VirtualBox)

When I got to the part of the installation where specifying where to install, I selected Manual as I always do. What caught me by surprise, and what I've never seen before, is the installer said that the virtual HDD that I had available to install to, was 5.5 GB LARGER than it actually is. The .vdi HDD is 75.0 GB. The installer says it's 80.5 GB. WTF!?

[oshunluvr]

Just a guess here: Is it possible Vbox is reporting GiB (even though it's labeled GB) but Debian is reporting GB? I ask because 80.5 GB = 74.97147 GiB

Seems awfully close...

[oshunluvr]

Here it claims Ubuntu size reporting is the culprit:https://superuser.com/questions/1283...-than-assigned

[oshunluvr]

https://askubuntu.com/questions/1502...irtualbox-disk

[Snowhog]

https://askubuntu.com/questions/1502...irtualbox-disk

Here it claims Ubuntu size reporting is the culprit:https://superuser.com/questions/1283...-than-assigned

Interesting. I've never seen this reported size difference in any Kubuntu version I've installed in VirtualBox, so it would seem that Kubuntu's installer/disk partitioner reports the size of the .vdi file in the same way that VirtualBox reports it. Debian's installer/disk partitioner however, does not. Like I said, I've never seen this before (now). Interesting.