installing from PPA does not work on Debian

[code-surfer]

This issue is about the Linux install instructions.

Aren't PPA an Ubuntu thing?

I'm surprised that the first command does something at all, though noisily:

# apt-add-repository ppa:qameta/allure                                                                                             
                                                                                                                                                 
 More info: https://launchpad.net/~qameta/+archive/ubuntu/allure                                                                                 
Press [ENTER] to continue or ctrl-c to cancel adding it                                                                                          
                                                                                                                                                 
gpg: keybox '/tmp/tmprmlnijdh/pubring.gpg' created                                                                                               
gpg: /tmp/tmprmlnijdh/trustdb.gpg: trustdb created                                                                                               
gpg: key 35AEAEA4134BF6F3: public key "Launchpad PPA for Qameta Software" imported                                                               
gpg: Total number processed: 1                                                                                                                   
gpg:               imported: 1                                                                                                                   
Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8)).                                                  
gpg: no valid OpenPGP data found.                                                                                                                
Exception in thread Thread-1:                                                                                                                    
Traceback (most recent call last):                                                                                                               
  File "/usr/lib/python3.9/threading.py", line 954, in _bootstrap_inner                                                                          
    self.run()                                                                                                                                   
  File "/usr/lib/python3.9/threading.py", line 892, in run                                                                                       
    self._target(*self._args, **self._kwargs)                                                                                                    
  File "/usr/lib/python3/dist-packages/softwareproperties/SoftwareProperties.py", line 688, in addkey_func                                       
    func(**kwargs)                                                                                                                               
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 386, in add_key                                                          
    return apsk.add_ppa_signing_key()                                                                                                            
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 273, in add_ppa_signing_key                                              
    cleanup(tmp_keyring_dir)                                                                                                                     
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 234, in cleanup                                                          
    shutil.rmtree(tmp_keyring_dir)                                                                                                               
  File "/usr/lib/python3.9/shutil.py", line 718, in rmtree                                                                                       
    _rmtree_safe_fd(fd, path, onerror)                                                                                                           
  File "/usr/lib/python3.9/shutil.py", line 675, in _rmtree_safe_fd                                                                              
    onerror(os.unlink, fullname, sys.exc_info())                                                                                                 
  File "/usr/lib/python3.9/shutil.py", line 673, in _rmtree_safe_fd                                                                              
    os.unlink(entry.name, dir_fd=topfd)                                                                                                          
FileNotFoundError: [Errno 2] No such file or directory: 'S.gpg-agent.extra'

The next command fails:

# apt-get update
Ign:1 http://ppa.launchpad.net/qameta/allure/ubuntu lunar InRelease
Hit:2 http://security.debian.org/debian-security bullseye-security InRelease                                                                    
Hit:3 http://deb.debian.org/debian bullseye InRelease                                                                                           
Hit:4 https://fasttrack.debian.net/debian-fasttrack bullseye-fasttrack InRelease                                                                
Hit:5 http://deb.debian.org/debian bullseye-updates InRelease                                                                                   
Err:6 http://ppa.launchpad.net/qameta/allure/ubuntu lunar Release                                                                               
  404  Not Found [IP: 185.125.190.52 80]
Hit:7 https://updates.signal.org/desktop/apt xenial InRelease                                                                                   
Hit:8 https://fasttrack.debian.net/debian-fasttrack bullseye-backports-staging InRelease                                                        
Hit:9 https://baltocdn.com/helm/stable/debian all InRelease                                                                                     
Hit:10 https://apt.releases.hashicorp.com bullseye InRelease                                                              
Hit:11 https://packages.cloud.google.com/apt kubernetes-xenial InRelease                                          
Hit:12 https://repo.platform.here.com/artifactory/debian stable InRelease
Reading package lists... Done
E: The repository 'http://ppa.launchpad.net/qameta/allure/ubuntu lunar Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

Perhaps the documentation should be changed to indicate that the PPA is for Ubuntu, not Debian?

[robmisasi]

The PPA hasn't been updated to support a new version of Ubuntu since 16.04 unfortunately.