We also publish md5 checksums for the large downloads we have at the site. These are quick-fire way to check whether the (huge) file you downloaded is intact. The binary "md5sum" should be there in almost any Linux distribution. Just give this command to the file you've downloaded

md5sum freesurfer-Linux-centos4-stable-pub-v4.3.1-full.tar.gz

the above command should produce the following output

9c0b434fa60d2a5cbedd2208d55fab5d freesurfer-Linux-centos4-stable-pub- v4.3.1-full.tar.gz

which should agree with the md5sum list Nick generates for all the distributions/platforms combos here .. ftp://surfer.nmr.mgh.harvard.edu/pub/dist/freesurfer/md5sum.txt

If it doesn't agree with the checksums posted in the site, that means the download is corrupted.

recommend using wget ( better than browser clients )

type this in a terminal wget ftp://surfer.nmr.mgh.harvard.edu/pub/dist/freesurfer/4.4.0/freesurfer-Linux-centos4-stable-pub-v4.4.0-full.tar.gz

Krish

On Jun 16, 2009, at 12:58 PM, sfcrc@aol.com wrote:

Hello,

I am new to Linux, so bear with me.

We downloaded the file: freesurfer-Linux-centos4-stable-pub-v4.3.1- ful.tar.gz

When we try to open this file from the desktop, the archive manager opens up and says "An error occured while loading the archive"

The command line output reads:

tar: skipping to next header gzip: stdin: invalid compressed data--crc error gzip: stdin: invalid compressed data--length error tar: Child returned status 1 tar: Error exit delayed from preious errors

We would really like to get this program up and running. Please let us what we're doing wrong.

Thanks for your help,

-Daniel

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