summary: updating R .deb's from recommended mirrors @

http://cran.r-project.org/mirrors.html

has allowed me to keep my R version up-to-date for many months. But
since Friday (25 Jan) I get errors like

Failed to fetch <mirror URI/>/squeeze-cran/<deb name/>: Hash Sum mismatch

but can install .deb's from non-CRAN sources. No fix from

sudo rm /var/cache/apt/pkgcache.bin
sudo rm /var/cache/apt/srcpkgcache.bin 
sudo rm /var/lib/apt/lists/*
sudo rm /var/lib/apt/lists/partial/*

and either

sudo aptitude update
or
sudo apt-get update

details:

http://lists.debian.org/debian-user/2013/01/msg00995.html
> I'm getting

> > E: Failed to fetch 
> > http://lib.stat.cmu.edu/R/CRAN/bin/linux/debian/squeeze-cran/r-base-core_2.15.2-1~squeezecran.0_amd64.deb:
> >  Hash Sum mismatch

> So I changed my sources.list

> - deb http://lib.stat.cmu.edu/R/CRAN/bin/linux/debian squeeze-cran/
> + deb http://watson.nci.nih.gov/cran_mirror/bin/linux/debian squeeze-cran/

> did `sudo aptitude update`, and got

> > W: Failed to fetch 
> > bzip2:/var/lib/apt/lists/partial/watson.nci.nih.gov_cran%5fmirror_bin_linux_debian_squeeze-cran_Packages:
> >  Hash Sum mismatch

> So I changed my sources.list

> - deb http://lib.stat.cmu.edu/R/CRAN/bin/linux/debian squeeze-cran/
> - deb http://watson.nci.nih.gov/cran_mirror/bin/linux/debian squeeze-cran/
> + deb http://mirrors.nics.utk.edu/cran/bin/linux/debian squeeze-cran/

> did `sudo aptitude update`, and got

> > W: Failed to fetch 
> > bzip2:/var/lib/apt/lists/partial/mirrors.nics.utk.edu_cran_bin_linux_debian_squeeze-cran_Packages:
> >  Hash Sum mismatch

Note that

* I'm only using mirror hosts from

http://cran.r-project.org/mirrors.html

* I'm only having problems getting/installing .deb's from CRAN:
  all other debian packages install normally

I got suggestions to try removing/recreating

/var/cache/apt/pkgcache.bin
/var/cache/apt/srcpkgcache.bin 
/var/lib/apt/lists/*
/var/lib/apt/lists/partial/*

but no fix:

me@it:~ $ sudo rm /var/cache/apt/pkgcache.bin /var/cache/apt/srcpkgcache.bin 
/var/lib/apt/lists/partial/* /var/lib/apt/lists/* ; sudo aptitude update
...
Reading package lists... Done
me@it:~ $ sudo aptitude install r-base r-base-core r-recommended r-base-dev
...
E: Failed to fetch 
http://mirrors.nics.utk.edu/cran/bin/linux/debian/squeeze-cran/r-base-core_2.15.2-1~squeezecran.0_amd64.deb:
 Hash Sum mismatch

me@it:~ $ sudo emacs -nw -q /etc/apt/sources.list
me@it:~ $ sudo rm /var/cache/apt/pkgcache.bin /var/cache/apt/srcpkgcache.bin 
/var/lib/apt/lists/partial/* /var/lib/apt/lists/* ; sudo aptitude update
...
Reading package lists... Done
me@it:~ $ sudo aptitude install r-base r-base-core r-recommended r-base-dev
...
E: Failed to fetch 
http://lib.stat.cmu.edu/R/CRAN/bin/linux/debian/squeeze-cran/r-base-core_2.15.2-1~squeezecran.0_amd64.deb:
 Hash Sum mismatch

How to fix, or further debug?
TIA, Tom Roche <[email protected]>

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