The R FAQ at http://cran.r-project.org/doc/FAQ/R-FAQ.html#Are-there-Unix-binaries-for-R_003f advises the use of the following /etc/apt/sources.list entry
deb http://cran.R-project.org/bin/linux/debian stable . I think that this is missing a forward slash after the word 'stable'. >From man sources.list: [...] distribution can specify an exact path, in which case the components must be omitted and distribution must end with a slash (/) [...] And empirically: dd:/home/dan# cat /etc/apt/sources.list deb http://cran.R-project.org/bin/linux/debian stable dd:/home/dan# apt-get update E: Malformed line 1 in source list /etc/apt/sources.list (dist parse) versus dd:/home/dan# cat /etc/apt/sources.list deb http://cran.R-project.org/bin/linux/debian stable/ dd:/home/dan# apt-get update Get:1 http://cran.R-project.org stable/ Packages [3155B] Get:2 http://cran.R-project.org stable/ Release [71B] Fetched 3226B in 0s (5206B/s) Reading Package Lists... Done Dan p.s. Thanks for the help I received this week as a result of not reading the FAQ... ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel