[Freedos-user] BIOS with broken UDMA needs DOS disk driver loaded before JEMMEX

Dear DOS users, via the BTTR DOS forum and Jack I received the following warning: Some mainboards have a BIOS with faulty UDMA in V86 mode support! This CPU mode is used to run "DOS compatible" tasks in Windows or certain virtual environments such as Dosemu for Linux, but it is (importantly)

Re: [Freedos-user] FreeDOS in VirtualBox: Bad or missing command interpreter and keyboard doesn't work

I have heard about this problem from some users of the FreeDOS VirtualBox images at https://www.lazybrowndog.net/freedos/virtualbox/ As far as I found out, "Bad or missing command interpreter" doesn’t necessarily mean COMMAND.COM doesn’t