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Comments on How to get QPixel bundle install working without sudo privileges on Debian?

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How to get QPixel bundle install working without sudo privileges on Debian? Question

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When I tried to install QPixel with bundle install I got the following message (on Debian 11):

~/qpixel$ bundle install
Bundler 2.3.15 is running, but your lockfile was generated with 2.4.13. Installing Bundler 2.4.13 and restarting using that version.
Fetching gem metadata from https://rubygems.org/.
Fetching bundler 2.4.13
Installing bundler 2.4.13

Then I am asked for the sudo password and afterwards a lot of orange warnings appear like this one (several for each "fetched" gem):

Retrying download gem from https://rubygems.org/ due to error (2/4): Bundler::PermissionError There was an error while trying to write to `/var/lib/gems/3.1.0/cache/erubi-1.11.0.gem`. It is likely that you need to grant write permissions for that path.

And then the installation stops with the following red error message (similar error messages are displayed):

Bundler::PermissionError: There was an error while trying to write to
`/var/lib/gems/3.1.0/cache/concurrent-ruby-1.1.10.gem`. It is likely that
you need to grant write permissions for that path.
  /var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/shared_helpers.rb:105:in `rescue in filesystem_access'
  /var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/shared_helpers.rb:102:in `filesystem_access'
  /var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/rubygems_integration.rb:483:in `block in download_gem'
  /var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/retry.rb:40:in `run'
  /var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/retry.rb:30:in `attempt'
  /var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/rubygems_integration.rb:474:in `download_gem'
  /var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/source/rubygems.rb:481:in `download_gem'
  /var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/source/rubygems.rb:443:in `fetch_gem'
  /var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/source/rubygems.rb:427:in `fetch_gem_if_possible'
  /var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/source/rubygems.rb:156:in `install'
  /var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/installer/gem_installer.rb:54:in `install'
  /var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/installer/gem_installer.rb:16:in `install_from_spec'
  /var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/installer/parallel_installer.rb:156:in `do_install'
  /var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/installer/parallel_installer.rb:147:in `block in worker_pool'
  /var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/worker.rb:62:in `apply_func'
  /var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/worker.rb:57:in `block in process_queue'
  /var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/worker.rb:54:in `loop'
  /var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/worker.rb:54:in `process_queue'
  /var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/worker.rb:90:in `block (2 levels) in create_threads'

Bundler::PermissionError: There was an error while trying to write to `/var/lib/gems/3.1.0/cache/minitest-5.16.3.gem`. It is likely that you need to grant write permissions for that path.
/var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/shared_helpers.rb:105:in `rescue in filesystem_access'
/var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/shared_helpers.rb:102:in `filesystem_access'
/var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/rubygems_integration.rb:483:in `block in download_gem'
/var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/retry.rb:40:in `run'
/var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/retry.rb:30:in `attempt'
/var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/rubygems_integration.rb:474:in `download_gem'
/var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/source/rubygems.rb:481:in `download_gem'
/var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/source/rubygems.rb:443:in `fetch_gem'
/var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/source/rubygems.rb:427:in `fetch_gem_if_possible'
/var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/source/rubygems.rb:156:in `install'
/var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/installer/gem_installer.rb:54:in `install'
/var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/installer/gem_installer.rb:16:in `install_from_spec'
/var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/installer/parallel_installer.rb:156:in `do_install'
/var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/installer/parallel_installer.rb:147:in `block in worker_pool'
/var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/worker.rb:62:in `apply_func'
/var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/worker.rb:57:in `block in process_queue'
/var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/worker.rb:54:in `loop'
/var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/worker.rb:54:in `process_queue'
/var/lib/gems/3.1.0/gems/bundler-2.4.13/lib/bundler/worker.rb:90:in `block (2 levels) in create_threads'

An error occurred while installing minitest (5.16.3), and Bundler cannot continue.

[..] # Similar error messages apears after

So I have to run bundle with sudo: sudo bundle install and I got the following message (but the installation is successful):

~/qpixel$ sudo bundle install
Don't run Bundler as root. Bundler can ask for sudo if it is needed, and installing your bundle as root will break this application for all non-root users on this machine.
Bundler 2.3.15 is running, but your lockfile was generated with 2.4.13. Installing Bundler 2.4.13 and restarting using that version.
Fetching gem metadata from https://rubygems.org/.
Fetching bundler 2.4.13
Installing bundler 2.4.13
Don't run Bundler as root. Installing your bundle as root will break this application for all non-root users on this machine.
[..] # After, the installation proceeds correctly

It seems to work fine because I have not detected any problem when running the local instance of QPixel, even if I start it with rails s without sudo.

But my questions are:

  1. What are the possible issues related to a QPixel bundle install with sudo?
  2. How to avoid using sudo to obtain a successful QPixel bundle install?
    I tried to install first the "good" version of bundle with sudo gem install bundler:2.4.13 but I got the same PermissionError messages during the bundle install... EDIT 1.1 after answer: If I try to install bundle WITHOUT sudo, I got the following error message:
    ~/qpixel$ gem install bundler
    Fetching bundler-2.4.16.gem
    ERROR:  While executing gem ... (Gem::FilePermissionError)
        You don't have write permissions for the /var/lib/gems/3.1.0 directory.
    

Set up

WSL2 Debian 11

I tried on a fresh Debian 11 bullseye on Windows Subsystem Linux Version 2 (WSL2), Windows 11 22H2 host and bundle installed with:

sudo apt install bundler

Ruby installed with:

curl -sSL https://get.rvm.io | bash -s stable

EDIT 1.2 after answer:

Output of gem env ("tyty" is the Debian user and "Rigal" is the Windows host user)

~/qpixel$ gem env
RubyGems Environment:
  - RUBYGEMS VERSION: 3.3.15
  - RUBY VERSION: 3.1.2 (2022-04-12 patchlevel 20) [x86_64-linux-gnu]
  - INSTALLATION DIRECTORY: /var/lib/gems/3.1.0
  - USER INSTALLATION DIRECTORY: /home/tyty/.local/share/gem/ruby/3.1.0
  - RUBY EXECUTABLE: /usr/bin/ruby3.1
  - GIT EXECUTABLE: /usr/bin/git
  - EXECUTABLE DIRECTORY: /usr/local/bin
  - SPEC CACHE DIRECTORY: /home/tyty/.local/share/gem/specs
  - SYSTEM CONFIGURATION DIRECTORY: /etc
  - RUBYGEMS PLATFORMS:
     - ruby
     - x86_64-linux
  - GEM PATHS:
     - /var/lib/gems/3.1.0
     - /home/tyty/.local/share/gem/ruby/3.1.0
     - /usr/local/lib/ruby/gems/3.1.0
     - /usr/lib/ruby/gems/3.1.0
     - /usr/lib/x86_64-linux-gnu/ruby/gems/3.1.0
     - /usr/share/rubygems-integration/3.1.0
     - /usr/share/rubygems-integration/all
     - /usr/lib/x86_64-linux-gnu/rubygems-integration/3.1.0
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :backtrace => false
     - :bulk_threshold => 1000
  - REMOTE SOURCES:
     - https://rubygems.org/
  - SHELL PATH:
     - /usr/local/sbin
     - /usr/local/bin
     - /usr/sbin
     - /usr/bin
     - /sbin
     - /bin
     - /usr/games
     - /usr/local/games
     - /usr/lib/wsl/lib
     - /mnt/c/Python311/Scripts/
     - /mnt/c/Python311/
     - /mnt/c/Program Files/ImageMagick-7.1.1-Q16-HDRI
     - /mnt/c/Program Files/ImageMagick-7.1.0-Q16-HDRI
     - /mnt/c/Program Files (x86)/Common Files/Oracle/Java/javapath
     - /mnt/c/WINDOWS/system32
     - /mnt/c/WINDOWS
     - /mnt/c/WINDOWS/System32/Wbem
     - /mnt/c/WINDOWS/System32/WindowsPowerShell/v1.0/
     - /mnt/c/WINDOWS/System32/OpenSSH/
     - /mnt/c/Program Files (x86)/Calibre2/
     - /mnt/c/Strawberry/c/bin
     - /mnt/c/Strawberry/perl/site/bin
     - /mnt/c/Strawberry/perl/bin
     - /mnt/c/Program Files/MATLAB/R2021b/bin
     - /mnt/c/Program Files/nodejs/
     - /mnt/c/ProgramData/chocolatey/bin
     - /mnt/c/Ruby32-x64/bin
     - /mnt/c/Users/Rigal/AppData/Local/Microsoft/WindowsApps
     - /mnt/c/Users/Rigal/AppData/Local/atom/bin
     - /mnt/c/Users/Rigal/AppData/Local/Programs/MiKTeX/miktex/bin/x64/
     - /mnt/c/Users/Rigal/AppData/Local/Programs/Git/cmd
     - /mnt/c/Users/Rigal/AppData/Roaming/npm
     - /mnt/c/Users/Rigal/AppData/Local/Microsoft/WindowsApps
     - /home/tyty/.rvm/bin
     - /home/tyty/.rvm/binSylvain RIGAL

Debian 12 on VBox

Also tried with a fresh install of Debian 12 (iso image debian-12.0.0-amd64-netinst.iso) on Virtual Box (version 7.0.8) on Windows 11 22H2 Host.

Ruby installed with rbenv:

sudo apt install rbenv
rbenv install 3.1.2 # WITHOUT sudo!
sudo gem install bundler

The same errors occurs when trying the QPixel bundle install without sudo and if I tried to install bundle without sudo (i.e. with gem install bundler), see EDIT 1.1.

Output of gem env ("tyty" is the Debian user, and note that I tried to install first Ruby with rvm (but it fails) before to install it with rbenv...)

~/qpixel$ gem env
RubyGems Environment:
  - RUBYGEMS VERSION: 3.3.15
  - RUBY VERSION: 3.1.2 (2022-04-12 patchlevel 20) [x86_64-linux-gnu]
  - INSTALLATION DIRECTORY: /var/lib/gems/3.1.0
  - USER INSTALLATION DIRECTORY: /home/tyty/.local/share/gem/ruby/3.1.0
  - RUBY EXECUTABLE: /usr/bin/ruby3.1
  - GIT EXECUTABLE: /usr/bin/git
  - EXECUTABLE DIRECTORY: /usr/local/bin
  - SPEC CACHE DIRECTORY: /home/tyty/.local/share/gem/specs
  - SYSTEM CONFIGURATION DIRECTORY: /etc
  - RUBYGEMS PLATFORMS:
     - ruby
     - x86_64-linux
  - GEM PATHS:
     - /var/lib/gems/3.1.0
     - /home/tyty/.local/share/gem/ruby/3.1.0
     - /usr/local/lib/ruby/gems/3.1.0
     - /usr/lib/ruby/gems/3.1.0
     - /usr/lib/x86_64-linux-gnu/ruby/gems/3.1.0
     - /usr/share/rubygems-integration/3.1.0
     - /usr/share/rubygems-integration/all
     - /usr/lib/x86_64-linux-gnu/rubygems-integration/3.1.0
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :backtrace => false
     - :bulk_threshold => 1000
  - REMOTE SOURCES:
     - https://rubygems.org/
  - SHELL PATH:
     - /usr/local/bin
     - /usr/bin
     - /bin
     - /usr/local/games
     - /usr/games
     - /home/tyty/.rvm/bin
     - /home/tyty/.rvm/bin
     - /home/tyty/.rvm/bin
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Meta post raised for code block rendering problem (3 comments)
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Disclaimer: I use rbenv rather than rvm for installing ruby and have not tested the suggested setup locally.

Rather than install bundler via apt, install it via rubygems such that it uses your rvm installed version of ruby.

(after sudo apt purge bundler)

gem install bundler

(don't run it with sudo)

This should set bundler up in such a way that the gems are installed to your rvm ruby location, where the current user should have writing permissions.

If this does not fix the problem, perhaps you can run gem env and add its output to your question such that we can see which version of ruby is being used and what it was installed with.

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2 comment threads

Problem solved (1 comment)
"gem env" output + test on Debian 12 VBox (3 comments)
"gem env" output + test on Debian 12 VBox
zetyty‭ wrote over 1 year ago

Thanks for your suggestions!

I can't install bundle without sudo (see EDIT 1.1). You can find the results of gem env on EDIT 1.2.

I also tried in a desktop Debian on VBox (instead of WSL2) in order to see if it was not a WSL related issue. Same behavior (see EDIT 1.2 "## Debian 12 VBox").

But please don't spend too much time on this, if there is no issue to install QPixel with a sudo bundle install it's fine but it was not mentioned in the installation guide so I thought it could be a good idea to ping this!

Taeir‭ wrote over 1 year ago · edited over 1 year ago

From your output it seems like it may be using a system ruby version rather than one installed with rvm. This would explain why its defaulting to /var/lib/gems. Try a rvm install 3.1 followed by rvm use 3.1 and then I expect that gem env should be picking that version instead. If not, perhaps you are using an alternative shell such as fish or zsh? In that case you may need to add source ~/.rvm/scripts/rvm to your zshrc/fishrc/bashrc.

Specifically, I would expect the .rvm folders to come earlier in your path. Currently they would only apply if nothing else matches, and given that ruby is also installed through apt it will always find that one first.

Taeir‭ wrote over 1 year ago

I don't know exactly what types of issues you may run into when using sudo for all the installations, but you may end up having to run the entire server with sudo to get it to work like that.