How to install Rtools without internet connection

[DGHunter]

Hi there,

I am trying to set up Rtools on a work computer behind a VERY restrictive firewall. I can get the base Rtools installation done, but the mingw32.db, mingw64.db and ucrt64.db files are missing and I cannot download them using pacman -Sy. That is pretty much the case for all of the toolchain - I download outside the firewall, then import via physical media.

So, my question is, is there a set process for this and a list of things I need to download for a complete install? Forgive me if you have already detailed this, I just haven't found it yet.

[jeroen]

The base rtools installation suffices for most purposes.

[DGHunter]

Thanks! The reason I ask is that I downloaded the Rtools40 installer, I don't have a functioning toolchain when I try to install CmdStan.

When I try to fix it, pacman is unable to download mingw32.db, mingw64.db or ucrt64.db because it can't get out through the firewall. I will download these next and bring them in on physical media, but the problem make me wonder what else I may be missing. It would be nice to get it all in one go.

[jeroen]

I dont think that is the problem. What error message do you get with rcmdstan?

[DGHunter]

The check_cmdstan_toolchain() says there are problems, so I tried to run it with fix = TRUE:

check_cmdstan_toolchain(fix = TRUE)
Installing mingw32-make and writing RTools path to ~/.Renviron ...
Error in processx::run("pacman", args = c("-Syu", "mingw-w64-x86_64-make",  : 
  System command 'pacman' failed, exit status: 1, stderr (last 10 lines):
E> error: failed to update mingw32 (download library error)
E> error: failed retrieving file 'mingw64.db' from cloud.r-project.org : Connection timed out after 10009 milliseconds
E> error: failed retrieving file 'mingw64.db' from cran.r-project.org : Connection timed out after 10005 milliseconds
E> error: failed retrieving file 'mingw64.db' from r-windows.github.io : Connection timed out after 10000 milliseconds
E> error: failed to update mingw64 (download library error)
E> error: failed retrieving file 'ucrt64.db' from cloud.r-project.org : Connection timed out after 10003 milliseconds
E> error: failed retrieving file 'ucrt64.db' from cran.r-project.org : Connection timed out after 10015 milliseconds
E> error: failed retrieving file 'ucrt64.db' from r-windows.github.io : Connection timed out after 10013 milliseconds
E> error: failed to update uc
[...]

Checking at the command line I see

C:\Users\username>pacman
warning: database file for 'mingw32' does not exist (use '-Sy' to download)
warning: database file for 'mingw64' does not exist (use '-Sy' to download)
warning: database file for 'ucrt64' does not exist (use '-Sy' to download)
error: no operation specified (use -h for help)

and it can't update from there either due to the same issue (timeout). I'm sorry that I don't have more details, my VPN client has decided not to work this morning.