Thank you very much Christophe by your advice. However, my situation was the opposite to yours, because I'm behind a proxy but my sudo account couldn't see it, and when looked for the proxy configuration of the sudo account with :
$ sudo printenv | grep proxy the result was empty. Finally, thanks to all the advice received in this thread, I could fix the problem by editing the 'sudoers' file, and making the environment variables related to the proxy (http_proxy, https_proxy, ftp_proxy) were preserved for the sudo account, as described here: http://blog.troyastle.com/2009/11/proxy-environment-variables-and-sudo-in.html using 'gedit' instead of 'visudo', as described here: http://bapoumba.wordpress.com/2008/05/07/edit-etcsudoers-with-gedit-in-ubuntu-hardy-heron/ I put the 'R-sig-Debian' list in cc just in case this may be useful for somebody else Thank you very much to you all. Kind regards, Mauricio 2010/6/7 Christophe Bonenfant <[email protected]>: > To check whether you have a proxy configured type in a console (as a root): > > echo $http_proxy > > It should be empty to have no problem. > > Christophe > > Le 07/06/2010 18:36, Mauricio Zambrano a écrit : >> 2010/6/7 Michael Rutter <[email protected]>: >>> >>> >>> On 06/07/2010 10:56 AM, Mauricio Zambrano wrote: >>>> >>>> Thanks Michael for your answer. >>>> >>>> The problem is just there: when I use the sudo account, I got the >>>> following error message: >>>> >>>> >>>> update.packages() >>>> >>>> --- Please select a CRAN mirror for use in this session --- >>>> Loading Tcl/Tk interface ... done >>>> Warning: unable to access index for repository >>>> http://cran.rakanu.com/src/contrib >>>> Warning message: >>>> In open.connection(con, "r") : >>>> unable to connect to 'cran.r-project.org' on port 80. >>>> >>>> >>>> But when I use my normal user account (within the same terminal form >>>> which I run sudo), I can update the packages, but creating a new >>>> version of the packages library within my user account. >>>> >>>> So I think the problem is not the Internet/proxy configuration of my >>>> PC, but something else that it is very strange for me. >>>> >>>> Thanks in advance, >>>> >>>> Mauricio >>>> >>> >>> Mauricio, >>> >>> You may have an error in sudoers file, which configures how the sudo command >>> can be used. This would be an Ubuntu issue, and more information can be >>> found here: https://help.ubuntu.com/community/Sudoers. >>> >>> You may also want to try: >>> >>> update.packages(repos="http://lib.stat.cmu.edu/R/CRAN";) >> >> I tried with this and it doesn't work. >> >>> >>> This will bypass the need to get a list of mirrors. You could also try your >>> local cran mirror. If this fails, you have an issue accessing the internet >>> via sudo in Ubuntu and you would need to figure out why. >> >> After some verifications, I confirmed that the problem is in my >> internet connection via sudo with some applications and not in the >> upgraded version of Ubuntu 10.4 with R 2.9.11, and I'll try to figure >> out why. >> >> (what is strange is that 'sudo apt-get update' works fine from the >> console but 'update.packages()' doesn't within a sudo session...) >> >>> >>> Hope this helps, >>> Michael >>> >>> -- >>> Dr. Michael A. Rutter >>> School of Science >>> Penn State Erie, The Behrend College >>> Station Road >>> Erie, PA 16563 >>> http://math.bd.psu.edu/faculty/rutter >>> >> >> Thank you very much for your valuable help. >> >> Kind regards, >> >> Mauricio >> > > -- > ________________________________________________________ > > UMR CNRS 5558, > Laboratoire Biométrie et Biologie Évolutive > Université Claude Bernard, Lyon 1 > 43, boulevard du 11 novembre 1918 > 69622 Villeurbanne Cedex > FRANCE \\\ > ( "> > Phone : (+33) 4 72 44 81 11 )( > Fax: (+33) 4 72 43 13 88 // ) > --//""-- > > http://krikouille.free.fr/~bonenfan/site/kris.html > ________________________________________________________ > -- =============================== Linux user #454569 -- Ubuntu user #17469 =============================== Dept. of Civil and Env. Engineering University of Trento, Italy _______________________________________________ R-SIG-Debian mailing list [email protected] https://stat.ethz.ch/mailman/listinfo/r-sig-debian
