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Ticket Resolution Summary Owner Reporter
#933 worksforme NAT works even when Network Adapter is disabled Dmitry Maruschenko
Description

I tried to make my guest OS working with Host Interface as described in your manual. So I diabled my Adapter # 1 (which previously worked with NAT) and enabled Adapter # 2 with Host Interface. I made necessary configuration (created tap0 and so on) and my guest OS successfully started and got an IP from DHCP server of our LAN. But I was unable to ping my guest machine neither from the host machine nor from any host in our LAN. Ping from my guest machine to my host machine or to LAN was successful. It was like my guest machine was behind NAT router, so I turned off my guest machine, enabled Adapter # 1 again, set it to "Not connected" mode and then disabled. After that my guest machine became reachable to host machine and to any LAN host =)

So, the bug is that guest machine is unreachable from outside even when adapter with NAT is disabled.

#934 fixed Feature Request: Emulation of Text-Mode (DOS mode) in Full-Screen Technologov
Description

Dalaunge and I think:

We'd like to have a Fullscreen in DOS... I mean, not a small window in the middle of the screen, and the rest ist "black border". I want a stretched Full-Screen mode.

Some further ideas on that topic:

I don't think that it's possible to do in an easy way. Correct emulation of DOS mode in Full-Screen I mean.

That is why: To emulate DOS Text-Mode, you need to emulate either 720x480 (I think) resolution on host, or Text-Mode on host.

In Windowed mode, emulating 720x480 window is not a problem (that's what VirtualBox does, but *it is* a problem in Full-Screen, because VESA standard has no such mode.

Of course it may be possible to emulate it via Text-Mode on host, but it has two problems:

  1. not all hosts support text-mode (Think of Linux with fbdev enabled)
  2. I don't think that VirtualBox BIOS/VideoBIOS is able to translate guest's text-mode into host's text-mode.

...so improving VirtualBox BIOSes might be required, as well as patches to Linux fbdev driver to allow switching into hardware text-mode. (or simply ask the user via VirtualBox Documentation to disable fbdev driver when running Linux host). On Windows host, there is no fbdev problem. Something similar to the Linux fbdev problem also exists for Mac hosts.

Currently VirtualBox (and other virtualizers) have ugly approximation of DOS mode in Fullscreen.

-Technologov, 30.11.2007.

#935 fixed Clean windows XP hold after instal Ms sql with aplication "CDN OPTIMA" zecik79
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