Re: [Urdme-help] Unable to write file error

[Brian D. <br...@dr...>]

Hi Marc,

It looks like you have an interesting and rare problem.  There are sporadic reports on the Ubuntu forums of programs not being able to write to the "/tmp" directory, which causes all sorts of problems.  I can not replicate your problem on our servers (though they are not the same version of Ubuntu), so I am hoping you can run a few commands to help us debug this problem remotely.

In a terminal, as your usual user (not root) please execute the following commands and email us back the output:
	 ls -ld /tmp
	 ls -l `mktemp -t urdmemodel.XXXXXXXXXX`
	touch /tmp/urdme_test; ls -l /tmp/urdme_test
	mount

Hopefully this will be enough for us to figure out the problem.  I apologize that our software does not work out of the box, but appreciate your efforts to make it a more robust software package.

Thanks,
  Brian Drawert

On Oct 31, 2010, at 12:43 PM, Marc Sturrock wrote:

> Greetings URDME Team,
> 
> I have a query regarding the E. Coli example. I have been working through the URDME manual v1.1 and it suggests solving the example files to ensure everything is working OK.  Although URDME appears to install perfectly fine, I hit a road block when typing the command 
> 
>> fem2 = urdme(fem,'fange')
> 
> I receive back
> 
>> Compiling solver.
>> ??? Error using ==> save
>> Unable to write file
>> /tmp/urdmemodel.WxPguATOWz.mat: No such file or directory.
>> 
>> Error in ==> rdme2mat at 10
>> save(filename, '-STRUCT', 'urdme');
>> 
>> Error in ==> urdme at 227
>> rdme2mat(fem,inputfile);
> 
> I have attempted to change the permissions of the /tmp/ folder to allow the writing of files and I have also logged in as the root user but I still receive the same error.
> 
> I am using Ubuntu 10.04 with Comsol 3.5a and Matlab 2007a. 
> 
> Cheers,
> 
> Marc
> 
> 
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