Re: aptitude update errors for upgrade to Jessie on amd64
On Thursday 14 May 2015 00:51:38 Paul E Condon wrote:
> On 20150513_2054+0100, Lisi Reisz wrote:
> > On Wednesday 13 May 2015 19:55:16 Bob Proulx wrote:
> > > 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.
> >
> > We need to be offered this during a netinstall. I did a netinstall
> > yesterday, and as usual was offered my bhoice of mirror in the UK. I
> > chose my usual because over the years it has been fast and reliable -
> > though I have a regular second choice for when needed.
> >
> > I would more than happily have chosen httpredir.debian.org had I been
> > offered it.
> >
> > Lisi
>
> At the very top of the pick-list of known mirrors in various parts of
> the world, there is a option to type in any URL and port number that
> you think will work for you (tm). I use it for accessing my approx
> proxy (with port# 9999), but it should work for a mirror set up by
> your neighbor across the street, or a honey pot set up by a certain
> spy agency, too.
That sounds even more bother than changing it now! I'm quite happy with what
I have got - but if Debian wants me to use something else, it should make it
easier than the present options, not harder.
Still, I hadn't noticed this - years of going straight to Europe/UK. I'll
look out for it next time.
So perhaps I wouldn't have noticed the addition of redir even if it had been
there.
Lisi
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