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Ticket Resolution Summary Owner Reporter
#931 fixed The mode option mentioned in the user manual is missing from vboxsf Paul Siu
Description

At the end of section 4.4, the manual states "The generic mount options (documented in the mount manual page) apply also.Especially useful are the options uid, gid and mode, as they allow access by normal users (in read/write mode, depending on the settings) even if root has mounted the filesystem." However, when you attempt to mount using the "mode" option, it tells you that "mode" is not a valid option.

Side effects Without the ability to change mode, a shared directory is always mounted with the permission of rwxr-xr-x. Basically, the owner can read, write and execute, while group and others can only read and execute.

When you mount a vboxsf volume, mount will mounted it as a owner of root and a group of root by default. As a result, no one except root will have write access. On distros like Ubuntu, you are normally not allowed to be root, so no one can write to the drive.

To get around the issue, you can mount it using the uid option so you are the owner of the shared folder, but that means any share folder will only have access by one person.

In addition, the gid option in mount is essentially useless since you cannot change mode. Your group will always only have read-execute access to the shared folder.

I propose that mode be an option of vboxsf as stated in the user manual.

#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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