[Qemu-devel] how can i mount a folder as a qemu disk?

[Qemu-devel] how can i mount a folder as a qemu disk?

[Paulo Silva]

Hi!
How can i mount a folder as a disk, just like what UAE and Basilisk2 does?
This is very useful for me, for transfering stuff between the root
operating-system and the emulated one, and vice-versa
cheers,
Paulo

Re: [Qemu-devel] how can i mount a folder as a qemu disk?

[Avi Kivity]

Paulo Silva wrote:
> Hi!
> How can i mount a folder as a disk, just like what UAE and Basilisk2 does?
> This is very useful for me, for transfering stuff between the root
> operating-system and the emulated one, and vice-versa
> cheers,
>   

Look up the -smb option in the docs.

-- 
error compiling committee.c: too many arguments to function

Re: [Qemu-devel] how can i mount a folder as a qemu disk?

[Jamie Lokier]

Avi Kivity wrote:
> Look up the -smb option in the docs.

Last time I tried it, -smb doesn't work any more because Samba can no
longer be run standalone by a normal user on current distros - it has
hard coded paths to /var/something-or-other which you can't override.

-- Jamie

Re: [Qemu-devel] how can i mount a folder as a qemu disk?

[Paulo Silva]

thanking the all answers so far (and expecting for more indeed)
as far i didn't have samba installed yet (lazyness), and i confess i'm
not that skilled to configure networks...

for this, i would suggest qemu having a folder mounting as imagedisk,
just like happened on UAE and Basilisk, and making us able to emulate
operating systems not having network support, and with an easy access
to the base operating system files - and this situation like
'sometimes works and sometimes don't, because samba lack of support',
would be very annoying being so dependant to that issues...

would be interesting if, when we set in the command line, a directory
instead of a imagedisk ( like '-hdc ~/.qemu/hd/' instead of '-hdc
~/.qemu/hd50mb.img'), would be very interesting... - if UAE and
Basilisk can do that, i think Qemu could do as well - maybe getting
some code from there? (sorry not being that skilled on C coding, i
really wanted to help on it....)

thanks!



On 3/22/09, Jamie Lokier <jamie@shareable.org> wrote:
> Avi Kivity wrote:
>> Look up the -smb option in the docs.
>
> Last time I tried it, -smb doesn't work any more because Samba can no
> longer be run standalone by a normal user on current distros - it has
> hard coded paths to /var/something-or-other which you can't override.
>
> -- Jamie
>
>
>

Re: [Qemu-devel] how can i mount a folder as a qemu disk?

[Jan Marten Simons]

Am Sonntag, 22. März 2009 18:43:51 schrieb Paulo Silva:
> thanking the all answers so far (and expecting for more indeed)
> as far i didn't have samba installed yet (lazyness), and i confess i'm
> not that skilled to configure networks...
>
> for this, i would suggest qemu having a folder mounting as imagedisk,
> just like happened on UAE and Basilisk, and making us able to emulate
> operating systems not having network support, and with an easy access
> to the base operating system files - and this situation like
> 'sometimes works and sometimes don't, because samba lack of support',
> would be very annoying being so dependant to that issues...
>
> would be interesting if, when we set in the command line, a directory
> instead of a imagedisk ( like '-hdc ~/.qemu/hd/' instead of '-hdc
> ~/.qemu/hd50mb.img'), would be very interesting... - if UAE and
> Basilisk can do that, i think Qemu could do as well - maybe getting
> some code from there? (sorry not being that skilled on C coding, i
> really wanted to help on it....)

I'm not sure about the current state of vvfat in qemu 0.10.1, but its purpose 
is to create a virtual drive out of a folder of the host system. Which sounds 
very much like the thing you want to do.

With regards,
Jan

Re: [Qemu-devel] how can i mount a folder as a qemu disk?

[Rob Landley]

On Saturday 21 March 2009 21:02:25 Paulo Silva wrote:
> Hi!
> How can i mount a folder as a disk, just like what UAE and Basilisk2 does?
> This is very useful for me, for transfering stuff between the root
> operating-system and the emulated one, and vice-versa
> cheers,
> Paulo

Well, there's always sshfs:

  http://fuse.sourceforge.net/sshfs.html

If you're stuck emulating windows and you don't mind it being A) read only, B) 
horribly inefficient, you can try the virtual FAT support:

  http://www.nongnu.org/qemu/qemu-doc.html#SEC25

Note that's got some serious rough edges.  Specifically, if you _don't_ mount 
that read only, and your kernel accidentally tries to write to it, the device 
behaves badly.  (My emulated linux kernel went into an endless loop due to a 
dropped interrupt or some such.  No idea what windows would do, I haven't got 
one..)


Rob