Wrong Macintosh HD icon after Catalina Upgrade
None of the workarounds mentioned in comments worked for me, so I decided to write a separate answer for people with the same trouble.

Experienced the same issue since the upgrade from Mojave 10.14 to Catalina (10.15.1), felt unreal and confused. Spent 10-15 mins searching and troubleshooting trying to fix but no luck (including Get Info - Upper Left corner - select the Icon - ⌘ + delete - it didn't work).

Mysterious and no one can explain how and why it happened (if you can, please_).

Disk Utility.app show the same Chrome Disk Image icon, didn't find a way to force a refresh or delete it.



I was hoping that the issue would be fixed by macOS patches but obviously NO up until 10.15.4, that's why I ended up here lol.

So the solution that worked for me:


In Terminal (or iTerm2)


open /System/Library/Extensions/IOStorageFamily.kext/Contents/Resources



Open internal.icns in Preview.app
Select all icons included by using ⌘ + A and copy to clipboard ⌘ + C
In Get Info UI, click on the upper left corner icon to select it
Paste ⌘ + V, if this does NOT work, use the file menu - Edit - Paste, 
the latter worked like a charm for me, finally...



  NOTE: In my case, I didn't select all icons included in the icon resource file, so the paste ended up with a wrong one, when I use the file menu - Edit - Undo, it just refreshed to the correct Icon, hmm... Anyway, it worked. Thanks to @user3439894 and OP @jjathman