Ubuntu 14.04 Eu recebo um erro depois de
sudo apt-get update
###other stuff###
Err https://cran.mtu.edu trusty/ Packages
server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys E084DAB9
gpg: requesting key E084DAB9 from hkp server keyserver.ubuntu.com
gpg: key E084DAB9: "Michael Rutter <[email protected]>" not changed
gpg: Total number processed: 1
gpg: unchanged: 1
gpg -a --export E084DAB9 | sudo apt-key add -
OK
sudo apt-get install r-base
Reading package lists... Done
Building dependency tree
Reading state information... Done
r-base is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 152 not upgraded.
Mas ....
~$ R
R version 3.0.2 (2013-09-25) -- "Frisbee Sailing"
Copyright (C) 2013 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)
Estas parecem ser as instruções no link e em várias postagens de blog
A abordagem que uso para pacotes atualizados de R e CRAN é a adição dos PPAs de Michael Rutter (também usados pelo CI-Travis):
sudo add-apt-repository ppa:marutter/rrutter
sudo add-apt-repository ppa:marutter/c2d4u
sudo apt-get update
sudo apt-get upgrade