On Wed, 10 Feb 2016 10:18:51 -0600, Dirk Eddelbuettel wrote: > Thanks for bringing the question over from StackOverflow [1]. I am not > very impressed that you STILL hide behind a pseudonym and I am starting > to question my sanity as to why I take time out to help someone like > that. Anyway, read on ... > > [1] http://stackoverflow.com/questions/35313704/rscript-launch-custom-r/ > > On 10 February 2016 at 15:50, Cron Acronis wrote: > | Dear all, > | > | I am trying to use multiple version of R unpacked from CRAN deb files. > > That will not work "as is". They have their path baked in. > > You could expand them into a Docker container each, and invoke those. > > You _could_ try re-setting RHOME, R_HOME, ... But rest assured that > you attempt to deploy R in a way NOT foreseen or designed by the > authors. > > | It does work successfully, except for some packages installation, > whether | Rscript has been used. I have configured alternatives and > switch R | environments without any problem and can install most of the > packages. > | > | '====================================================== > | $ update-alternatives --display R | R - auto mode | link currently > points to /opt/R/3.2.3/usr/lib/R/bin/R | /opt/R/3.2.3/usr/lib/R/bin/R - > priority 200 | /usr/lib/R/bin/R - priority 100 | Current 'best' version > is '/opt/R/3.2.3/usr/lib/R/bin/R'. > | > | > | $ update-alternatives --display Rscript | Rscript - auto mode | link > currently points to /opt/R/3.2.3/usr/lib/R/bin/Rscript | > /opt/R/3.2.3/usr/lib/R/bin/Rscript - priority 200 | > /usr/lib/R/bin/Rscript - priority 100 | Current 'best' version is > '/opt/R/3.2.3/usr/lib/R/bin/Rscript'. > | '====================================================== > | > | Rscript always invokes `/usr/lib/R/bin/R`, but my alternatives are | > configured against `/usr/bin/R` > | > | '====================================================== > | $ Rscript --verbose -e 'Sys.getenv("R_HOME")' > | running | '/usr/lib/R/bin/R --slave --no-restore -e > Sys.getenv("R_HOME")' > | > | [1] "/usr/lib/R" > | '====================================================== > | > | As have been mentioned by Dirk Eddelbuettel, in order to make Rscript > | invoke correct R, I can adjust `PATH` environment variable. > > That presumed a local build into the location where PATH finds it. That > is how some R Core members use different versions, and that approach > 'was good enough for me' too. You are overcomplicating things here and > get to pick up the pieces. > > | Which was done, but in my case didn't work out. Rscript still calls > `/usr/ | lib/R/bin/R` > | > | '====================================================== > | $ env | grep PATH | > PATH=/opt/R/3.2.3/usr/lib/R/bin:/opt/python/conda/bin::/usr/local/sbin:/ > | > usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games > | > | > | $ Rscript --version && Rscript --verbose -e 'print("Hello")' > | R scripting front-end version 3.2.3 (2015-12-10) > | running | '/usr/lib/R/bin/R --slave --no-restore -e > print("Hello")' > | > | [1] "Hello" > | '====================================================== > | > | > | Could you please advise where I should dig further in order to force | > Rscript to use `/usr/bin/R` or `/opt/R/3.2.3/usr/lib/R/bin/R`? > > Build from source into the chosen location. > > | Regards, Cron Acronis. > > In the future, use a real name if you want real help from real people. > > Dirk >
Dear Dirk, Probably you would like to know, that I have managed to solve the problem by using `schroot`. It can attach current user `home` folder to `rootfs` from `chroot` where. After I have configured the `trusty64`, I have just created a clone. Inside the clone I have installed another version of R from CRAN repo. <--------------------------------START-------------> root@chroot-test:/# schroot -l chroot:trusty64 chroot:trusty64_clone $ cat /etc/schroot/chroot.d/trusty64.conf [trusty64] description=Ubuntu 14.04 Trusty Tahr directory=/test/schroot/trusty64 users=quant type=directory profile=desktop #personality=linux preserve-environment=true root-groups=root $ cat /etc/schroot/chroot.d/trusty64_clone.conf [trusty64_clone] description=Ubuntu 14.04 Trusty Tahr directory=/test/schroot/trusty64 users=quant type=directory profile=desktop #personality=linux preserve-environment=true root-groups=root root@chroot-test:/etc# debootstrap --variant=minbase --arch amd64 trusty / test/schroot/trusty64/ http://archive.ubuntu.com/ubuntu/ root@chroot-test:/etc# schroot -c trusty64 -u quant root@chroot-test:/etc# schroot -c trusty64_clone -u quant <--------------------------------END---------------> -- Regards. Alexey. _______________________________________________ R-SIG-Debian mailing list R-SIG-Debian@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-debian