What if you run:

freeview -v  
/media/hessam91/driver2/freesurfer/freesurfer/subjects/bert/mri/T1.mgz


> On Aug 10, 2017, at 4:40 AM, Z Hessam <z.hes...@gmail.com> wrote:
> 
> it shows:
> 
> -rwxrwxrwx 1 8481 1590 0 Aug  9 22:30 
> /media/hessam91/driver2/freesurfer/freesurfer/subjects/bert/mri/T1.mgz
> 
> 
> On Thu, Aug 10, 2017 at 2:55 AM, Ruopeng Wang <rpw...@nmr.mgh.harvard.edu 
> <mailto:rpw...@nmr.mgh.harvard.edu>> wrote:
> Hmm, if you run:
> 
> ls -l /media/hessam91/driver2/freesurfer/freesurfer/subjects/bert/mri/T1.mgz
> 
> what does it show?
> 
>> On Aug 9, 2017, at 4:47 PM, Z Hessam <z.hes...@gmail.com 
>> <mailto:z.hes...@gmail.com>> wrote:
>> 
>> of course:
>> 
>> hessam@ubuntu:/media/hessam/driver2/freesurfer/subjects$ freeview -v     
>> bert/mri/T1.mgz     bert/mri/wm.mgz     bert/mri/brainmask.mgz     
>> bert/mri/aseg.mgz:colormap=lut:opacity=0.2     -f     
>> bert/surf/lh.white:edgecolor=blue     bert/surf/lh.pial:edgecolor=red     
>> bert/surf/rh.white:edgecolor=blue     bert/surf/rh.pial:edgecolor=red
>> 
>> mghRead(/media/hessam91/driver2/freesurfer/freesurfer/subjects/bert/mri/T1.mgz,
>>  -1): read error
>> MRIread failed: Unable to read from 
>> /media/hessam91/driver2/freesurfer/freesurfer/subjects/bert/mri/T1.mgz
>> mghRead(/media/hessam91/driver2/freesurfer/freesurfer/subjects/bert/mri/T1.mgz,
>>  -1): read error
>> mghRead(/media/hessam91/driver2/freesurfer/freesurfer/subjects/bert/mri/T1.mgz,
>>  -1): read error
>> MRIread failed: Unable to read from 
>> /media/hessam91/driver2/freesurfer/freesurfer/subjects/bert/mri/T1.mgz
>> mghRead(/media/hessam91/driver2/freesurfer/freesurfer/subjects/bert/mri/T1.mgz,
>>  -1): read error
>> 
>> thanks a lot for your attention 
>> 
>> On Wed, Aug 9, 2017 at 10:57 PM, Ruopeng Wang <rpw...@nmr.mgh.harvard.edu 
>> <mailto:rpw...@nmr.mgh.harvard.edu>> wrote:
>> Can you copy and paste the exact command line you ran and the error message?
>> 
>> Ruopeng
>> 
>> 
>> On 08/09/2017 02:21 PM, Z Hessam wrote:
>>> 
>>> I try it without \ chars, works for some other subjects
>>> but it doesn't work for one of them,and now I can even open it with GUI, 
>>> while I could open it before.
>>> It seems that is time variant!
>>> Should I run "recon-all ..." again for that subject?
>>> 
>>> 
>>> 
>>> 
>>> On Wed, Aug 9, 2017 at 10:32 PM, Bruce Fischl <fis...@nmr.mgh.harvard.edu 
>>> <mailto:fis...@nmr.mgh.harvard.edu>> wrote:
>>> can you try it without all the \ characters?  You shouldn't need them if 
>>> it's all on one line
>>> 
>>> On Wed, 9 Aug 2017, Z Hessam wrote:
>>> 
>>> 
>>> $>freeview -v \    bert/mri/T1.mgz \    bert/mri/wm.mgz \   
>>> bert/mri/brainmask.mgz \    bert/mri/aseg.mgz:colormap=lut:opacity=0.2
>>> mri_read(): couldn't determine type of file
>>> /media/hessam91/driver2/freesurfer/freesurfer/subjects/
>>> MRIread failed: Unable to read from
>>> /media/hessam91/driver2/freesurfer/freesurfer/subjects/
>>> mri_read(): couldn't determine type of file
>>> /media/hessam91/driver2/freesurfer/freesurfer/subjects/
>>> 
>>> 
>>> I use the example 4 in the "download and install" page of site
>>> 
>>> On Wed, Aug 9, 2017 at 8:44 PM, Bruce Fischl <fis...@nmr.mgh.harvard.edu 
>>> <mailto:fis...@nmr.mgh.harvard.edu>>
>>> wrote:
>>> 
>>>       hmmm, that looks ok, but it's hard to tell with all the
>>>       backslashes and blank lines and such. Can you send the full
>>>       command on a single line (e.g. by hitting up-arrow in the
>>>       terminal window) and the actual output of freeview?
>>> 
>>>        On Wed, 9 Aug 2017, Z Hessam wrote:
>>> 
>>> 
>>>             Hello Freesurfer Developers,
>>> 
>>>             I have problem when I use "freeview" example code in
>>>             terminal,
>>>             freeview -v \
>>> 
>>>                 bert/mri/T1.mgz \
>>> 
>>>                 bert/mri/wm.mgz \
>>> 
>>>                 bert/mri/brainmask.mgz \
>>> 
>>>                
>>>                 bert/mri/aseg.mgz:colormap=lut:opacity=0.2 \
>>> 
>>>                 -f \
>>> 
>>>                 bert/surf/lh.white:edgecolor=blue \
>>> 
>>>                 bert/surf/lh.pial:edgecolor=red \
>>> 
>>>                 bert/surf/rh.white:edgecolor=blue \
>>> 
>>>                 bert/surf/rh.pial:edgecolor=red
>>>             it tell "Failed to load MRI <subject_dir>",
>>>             mri_read(): couldn't determine type of file
>>>             <subject_dir>
>>>             MRIread failed: Unable to read from <subject_dir>
>>>             mri_read(): couldn't determine type of file
>>>             <subject_dir>
>>>             but i can load wm.mgz and other existed files in
>>>             GUI.
>>> 
>>>             please help me to know why this error happend? and
>>>             what should I do to solve
>>>              this?
>>> 
>>>             I've searched the list, I found a similar errors,
>>>             but wasn't helpful answer reported.
>>>             help me please
>>> 
>>>             regards
>>> 
>>>             On Wed, Aug 9, 2017 at 7:56 PM, Z Hessam
>>>             <z.hes...@gmail.com <mailto:z.hes...@gmail.com>> wrote:
>>> 
>>>             Hello Freesurfer Developers,
>>> 
>>>             I have problem when I use "freeview" example code in
>>>             terminal,
>>>             freeview
>>>             -v \
>>> 
>>>                 bert/mri/T1.mgz \
>>> 
>>>                 bert/mri/wm.mgz \
>>> 
>>>                 bert/mri/brainmask.mgz \
>>> 
>>>                
>>>             bert/mri/aseg.mgz:colormap=lut:opacity=0.2 \
>>> 
>>>                 -f \
>>> 
>>>                 bert/surf/lh.white:edgecolor=blue \
>>> 
>>>                 bert/surf/lh.pial:edgecolor=red \
>>> 
>>>                 bert/surf/rh.white:edgecolor=blue \
>>> 
>>>                 bert/surf/rh.pial:edgecolor=red
>>>             it tell "Failed to load MRI <subject_dir>", but i
>>>             can load wm.mgz and other existed files in GUI.
>>> 
>>>             please help me to know why this error happend? and
>>>             what should I do to solve
>>>              this?
>>> 
>>>             I've searched the list, I found a similar errors,
>>>             but wasn't helpful answer reported.
>>>             help me please
>>> 
>>>             regards
>>> 
>>> 
>>> 
>>> 
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