Basics ./prereqs.sh Error ./prereqs.sh: line 250: ghcup: command not found

[Bossman42]

Trying to setup cardano node and following the guild guide on the basics page the following happened.

Using Ubuntu on windows 10

After attempting the line in basics

./prereqs.sh

to setup the prereqs.sh I got this error.

Installing GHC v8.10.4 ..
./prereqs.sh: line 250: ghcup: command not found
./prereqs.sh: line 251: ghcup: command not found
./prereqs.sh: line 252: ghc: command not found
Installing Cabal v3.4.0.0..
./prereqs.sh: line 261: ghcup: command not found

Am I missing something? or is this normal?

[rdlrt]

Using Ubuntu on windows 10

I think this is the issue 🙂 Most of the scripts are created purely for Linux environments. In this case, after installing ghcup, it seems that the profile / session has not been retained - requiring you to run source ~/ada/.ghcup/env manually and then potentially re-running the script.

[kivanio]

I got same on Ubuntu 20.04 (LTS) x64 VM machine at Digital Ocean
5.4.0-73-generic #82-Ubuntu SMP Wed Apr 14 17:39:42 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

[rdlrt]

@kivanio

1. Could you confirm if bashrc file under your profile contains the ghcup additions?
2. Could you also try using prereqs.sh -b alpha and then rerun prereqs script (specifically for this commit additions)

[kivanio]

@rdlrt
1 - This is what .bashrc has:

export CNODE_HOME=/opt/cardano/cnode

export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH

. "$HOME/.cargo/env"

[ -f "/home/user/.ghcup/env" ] && source "/home/user/.ghcup/env" # ghcup-env

2 -

:~/tmp$ ./prereqs.sh -b alpha
Using apt to prepare packages for "Ubuntu" system
  Updating system packages...
[sudo] password for kadarelay: 
  Installing missing prerequisite packages, if any..
Creating Folder Structure ..
Environment Variable already set up!
IOG fork of libsodium installed to /usr/local/lib/
Downloading files...

Are supposed to destroy everything and start again with /prereqs.sh -b alpha?

[rdlrt]

Looks like it went fine (even from master), as ghcup was already available in your $PATH. Are you sure you received the exactly same message as OP (incl. the line numbers)?

[dehy]

Had this problem today on ubuntu 20.04. In .bashrc file, there is these lines:

/root/.bashrc

# If not running interactively, don't do anything
[ -z "$PS1" ] && return

For non-root users, in /home/<user>/.bashrc:

# If not running interactively, don't do anything
case $- in
    *i*) ;;
      *) return;;
esac

So environment is not reloaded after it got updated because the script is not executed interactively

Edit: here is some more information https://askubuntu.com/a/1041348

[rdlrt]

Linked PR should fix it, as it will directly source the env file instead of bashrc