[Qemu-devel] Location of temporary file for sectors on Windows (XP)

["W. Craig Scratchley" <wcs@sfu.ca>]

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The user manual reads:

 

"If you use the option `-snapshot', all disk images are considered as read
only. When sectors in written, they are written in a temporary file created
in `/tmp'."

 

On Windows (XP), however, I am getting files of the form s??? in the C:\
directory.  This is causing problems at SFU because student accounts don't
have write access to the C:\ directory and this seems to be causing Qemu to
immediately crash.

 

Note that I do have a directory C:\tmp, but it is not being used for this
temporary file.  Also, my system has environment variables TMP and TEMP, and
these are not being consulted.

 

Then, I entered the following line:

 

set QEMU_TMPDIR=c:\tmp

 

But this also had no effect.

 

Finally, note that the s??? files in my C:\ directory are not being deleted
by Qemu, which means an arbitrary amount of space can get taken up by the
files over time.

 

Seems like an issue which has not yet been addressed for Windows builds.

 

Thanks,

     Craig Scratchley, Simon Fraser University

 

p.s.  I am now successfully using Qemu for QNX 6.3.0 as a guest (seems I
must use the -isa option for Qemu to get networking).  The -loadvm option is
great, as QNX is very slow to boot in QNX (it is much faster for me in
Bochs).


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