Hi, I am practicing freesurfer with the sample data downloaded from freesurfer wiki homepage. I have two questions.

1) My computer doesn't have enough memory capacity, so I saved the data on my USB memory, but I couldn't find how to make freesurfer work with the data in the USB memory drive. Is it possible? According to the tutorial, I have to move the data to FREESUFER_HOME directory of my laptop Linux system.

2) Thus, I moved the sample data to FREESURFER_HOME directory in my computer hard drive but I found another problem in doing mri_convert data. The given sample data was, " buckner_data-tutorial_subjs" I made directory as "mksubjdirs anon" then, cd $FREESURFER_HOME/subjects/buckner_data/tutorial_subjs and setenv {SUBJECTS_DIR} ${PWD} But when I tried to convert files as the tutorial said mri_convert 014-anon/001.dcm ${SUBJECTS_DIR}/anon/mri/orig/001.mgz

this command could not be executed and the error message came up "014-anon/001.dcm file or directory does not exist". I guess "anon" directory couldn't have any dcm files because I made the directory in FREESURFER_HOME. And actually I couldn't find any dcm files in the sample data.

I'll appreciate if I can get help from you.