Pierre Frenkiel wrote:
> I have still the same problem with "Hash Sum mismatch"
> Do you have any idea on how to fix it?
Is your system behind a proxy cache of some sort? This problem is one
sometimes seen when files of different ages are cached and served
causing the entire set of files to be out of sync with each other.
This is sometimes seen when behind a caching proxy server such as
those on a large company network.
There are various solutions. I think the simplest is to change the
sources.list file to a different mirror. That will have the effect of
asking for different URLs and will avoid the previously cached files
and will cause the local copies of the old files to be expired.
You are currently using:
deb http://ftp.fr.debian.org/debian jessie main
That is okay. Good! But for the purpose of this task change that to
a different but still valid mirror. This would be a good time to try
out the new http redirector which has just recently become an official
Debian resource.[1]
deb http://httpredir.debian.org/debian jessie main
That httpredir.debian.org was previously known as http.debian.net for
those on the list that are familiar with it.
This is a good configuration for anyone geographically anywhere as it
will redirect to the best known nearby mirror. The effect for you
with this problem is that it will be a different appearing URL than
the previously used ftp.fr.debian.org and will therefore ask for
different files. The previously locally cached files on your disk in
/var/lib/apt will be expired as no longer being in your sources.list
file. If mismatched cached proxy files are your only remaining
problem then this should fix it. Make sure to 'apt-get update' after
changing the sources.list file.
Bob
Useful Resources:
[1] https://lists.debian.org/debian-devel-announce/2015/05/msg00003.html
http://httpredir.debian.org/
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