Re: [Freedos-kernel] FreeDOS and redirectors

[Tom Ehlert]

> I wanted to ask: to what degree does FreeDOS implement the redirector
> interface?  Are there any known incompatibilities?
it should right work.

all known redirectors

   CD/DVD drivers
   MS Lan Manager
   NTFSDOS
   NTFS4DOS
   VMSMOUNT (with source)

for DOS work without (known) problems

> This also requires that any protected mode memory manager (EMM386 etc)
> implements the DOS VDS (Virtual DMA Service, INT 4Bh AH=81h) API.
VDS is supported.

Tom


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Re: [Freedos-kernel] FreeDOS and redirectors

[Eduardo Casino]

2015-11-17 6:35 GMT+01:00 H. Peter Anvin :
> I wanted to ask: to what degree does FreeDOS implement the redirector
> interface?  Are there any known incompatibilities?

I didn't find any while implementing my own redirector.

> The reason I am asking is that I started a project that I was never able
> to find time finish (and don't expect to have any more for the
> forseeable future) to write a 9pfs redirector for DOS, which would let
> DOS access a filesystem (as opposed to a disk image) using Qemu.

...and, therefore, using KVM. Great!  :)

> If there is interest, the code so far is at:
>
> http://git.zytor.com/dos/virtio9p.git/
>
> It contains a lot of infrastructure work done (tested under MS-DOS 6.22)
> but not much of the actual file operations.
>
> This also requires that any protected mode memory manager (EMM386 etc)
> implements the DOS VDS (Virtual DMA Service, INT 4Bh AH=81h) API.

I will look into that, thank you.

Eduardo.

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