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Bug 1758447 - dnf module disable <module:stream> disables all streams
Summary: dnf module disable <module:stream> disables all streams
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: dnf
Version: 8.0
Hardware: Unspecified
OS: Unspecified
low
high
Target Milestone: rc
: 8.0
Assignee: Marek Blaha
QA Contact: Eva Mrakova
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-10-04 07:48 UTC by Michael Mráka
Modified: 2023-07-11 23:23 UTC (History)
4 users (show)

Fixed In Version: dnf-4.2.17-4.el8
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2020-04-28 16:48:23 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2020:1823 0 None None None 2020-04-28 16:48:54 UTC

Description Michael Mráka 2019-10-04 07:48:00 UTC 
Description of problem:
dnf module disable <module:stream> disables all streams

Version-Release number of selected component (if applicable):
dnf-4.0.9.2-5.el8.noarch


How reproducible:
always

Steps to Reproduce:
1. dnf module list perl
Updating Subscription Management repositories.
Last metadata expiration check: 0:03:44 ago on Fri Oct  4 07:31:13 2019.
Red Hat Enterprise Linux 8 for x86_64 - AppStream (RPMs)
Name         Stream           Profiles                    Summary                                         
perl         5.24             common [d], minimal         Practical Extraction and Report Language        
perl         5.26 [d]         common [d], minimal         Practical Extraction and Report Language        

Hint: [d]efault, [e]nabled, [x]disabled, [i]nstalled


2. dnf module disable perl:5.24
Updating Subscription Management repositories.
Last metadata expiration check: 0:03:44 ago on Fri Oct  4 07:31:13 2019.
Problems in request:
Modular dependency problems with Defaults:

 Problem 1: module freeradius:3.0:820190131191847:fbe42456-0.x86_64 requires module(perl:5.26), but none of the providers can be installed
  - conflicting requests
  - module perl:5.26:820181219174508:9edba152-0.x86_64 is disabled
 Problem 2: module freeradius:3.0:8000020190425181943:75ec4169-0.x86_64 requires module(perl:5.26), but none of the providers can be installed
  - conflicting requests
  - module perl:5.26:820181219174508:9edba152-0.x86_64 is disabled
 Problem 3: conflicting requests
  - module perl-App-cpanminus:1.7044:820181214184336:4f58e9d5-0.x86_64 requires module(perl:5.24), but none of the providers can be installed
  - module perl-App-cpanminus:1.7044:820181214184336:e5ce1481-0.x86_64 requires module(perl:5.26), but none of the providers can be installed
  - module perl:5.24:820190207164249:ee766497-0.x86_64 is disabled
  - module perl:5.26:820181219174508:9edba152-0.x86_64 is disabled
 Problem 4: conflicting requests
  - module perl-YAML:1.24:820181214175558:7c757546-0.x86_64 requires module(perl:5.24), but none of the providers can be installed
  - module perl-YAML:1.24:820181214175558:8652dbeb-0.x86_64 requires module(perl:5.26), but none of the providers can be installed
  - module perl:5.24:820190207164249:ee766497-0.x86_64 is disabled
  - module perl:5.26:820181219174508:9edba152-0.x86_64 is disabled
 Problem 5: conflicting requests
  - module perl-FCGI:0.78:820181214153815:082fdf2f-0.x86_64 requires module(perl:5.24), but none of the providers can be installed
  - module perl-FCGI:0.78:820181214153815:fbe42456-0.x86_64 requires module(perl:5.26), but none of the providers can be installed
  - module perl:5.24:820190207164249:ee766497-0.x86_64 is disabled
  - module perl:5.26:820181219174508:9edba152-0.x86_64 is disabled
 Problem 6: conflicting requests
  - module perl-DBD-SQLite:1.58:820181214121133:0cdc2006-0.x86_64 requires module(perl:5.24), but none of the providers can be installed
  - module perl-DBD-SQLite:1.58:820181214121133:6bc6cad6-0.x86_64 requires module(perl:5.26), but none of the providers can be installed
  - module perl:5.24:820190207164249:ee766497-0.x86_64 is disabled
  - module perl:5.26:820181219174508:9edba152-0.x86_64 is disabled
 Problem 7: conflicting requests
  - module perl-DBI:1.641:820190116185335:082fdf2f-0.x86_64 requires module(perl:5.24), but none of the providers can be installed
  - module perl-DBI:1.641:820190116185335:fbe42456-0.x86_64 requires module(perl:5.26), but none of the providers can be installed
  - module perl:5.24:820190207164249:ee766497-0.x86_64 is disabled
  - module perl:5.26:820181219174508:9edba152-0.x86_64 is disabled
 Problem 8: conflicting requests
  - module perl-DBD-MySQL:4.046:820181214121012:0cdc2006-0.x86_64 requires module(perl:5.24), but none of the providers can be installed
  - module perl-DBD-MySQL:4.046:820181214121012:6bc6cad6-0.x86_64 requires module(perl:5.26), but none of the providers can be installed
  - module perl:5.24:820190207164249:ee766497-0.x86_64 is disabled
  - module perl:5.26:820181219174508:9edba152-0.x86_64 is disabled
 Problem 9: conflicting requests
  - module perl-DBD-Pg:3.7:820181214121102:956b9ee3-0.x86_64 requires module(perl:5.24), but none of the providers can be installed
  - module perl-DBD-Pg:3.7:820181214121102:6fcea174-0.x86_64 requires module(perl:5.26), but none of the providers can be installed
  - module perl:5.24:820190207164249:ee766497-0.x86_64 is disabled
  - module perl:5.26:820181219174508:9edba152-0.x86_64 is disabled
Dependencies resolved.
==========================================================================================================
 Package                  Arch                    Version                  Repository                Size
==========================================================================================================
Disabling module streams:
 perl                                                                                                    

Transaction Summary
==========================================================================================================

Is this ok [y/N]: y
Complete!


3. dnf --disablerepo=ubi*,epel,copr* module list perl        
Updating Subscription Management repositories.
Last metadata expiration check: 0:05:25 ago on Fri Oct  4 07:31:13 2019.
Modular dependency problems:

 Problem 1: module freeradius:3.0:820190131191847:fbe42456-0.x86_64 requires module(perl:5.26), but none of the providers can be installed
  - conflicting requests
  - module perl:5.26:820181219174508:9edba152-0.x86_64 is disabled
 Problem 2: module freeradius:3.0:8000020190425181943:75ec4169-0.x86_64 requires module(perl:5.26), but none of the providers can be installed
  - conflicting requests
  - module perl:5.26:820181219174508:9edba152-0.x86_64 is disabled
 Problem 3: conflicting requests
  - module perl-App-cpanminus:1.7044:820181214184336:4f58e9d5-0.x86_64 requires module(perl:5.24), but none of the providers can be installed
  - module perl-App-cpanminus:1.7044:820181214184336:e5ce1481-0.x86_64 requires module(perl:5.26), but none of the providers can be installed
  - module perl:5.24:820190207164249:ee766497-0.x86_64 is disabled
  - module perl:5.26:820181219174508:9edba152-0.x86_64 is disabled
 Problem 4: conflicting requests
  - module perl-YAML:1.24:820181214175558:7c757546-0.x86_64 requires module(perl:5.24), but none of the providers can be installed
  - module perl-YAML:1.24:820181214175558:8652dbeb-0.x86_64 requires module(perl:5.26), but none of the providers can be installed
  - module perl:5.24:820190207164249:ee766497-0.x86_64 is disabled
  - module perl:5.26:820181219174508:9edba152-0.x86_64 is disabled
 Problem 5: conflicting requests
  - module perl-FCGI:0.78:820181214153815:082fdf2f-0.x86_64 requires module(perl:5.24), but none of the providers can be installed
  - module perl-FCGI:0.78:820181214153815:fbe42456-0.x86_64 requires module(perl:5.26), but none of the providers can be installed
  - module perl:5.24:820190207164249:ee766497-0.x86_64 is disabled
  - module perl:5.26:820181219174508:9edba152-0.x86_64 is disabled
 Problem 6: conflicting requests
  - module perl-DBD-SQLite:1.58:820181214121133:0cdc2006-0.x86_64 requires module(perl:5.24), but none of the providers can be installed
  - module perl-DBD-SQLite:1.58:820181214121133:6bc6cad6-0.x86_64 requires module(perl:5.26), but none of the providers can be installed
  - module perl:5.24:820190207164249:ee766497-0.x86_64 is disabled
  - module perl:5.26:820181219174508:9edba152-0.x86_64 is disabled
 Problem 7: conflicting requests
  - module perl-DBI:1.641:820190116185335:082fdf2f-0.x86_64 requires module(perl:5.24), but none of the providers can be installed
  - module perl-DBI:1.641:820190116185335:fbe42456-0.x86_64 requires module(perl:5.26), but none of the providers can be installed
  - module perl:5.24:820190207164249:ee766497-0.x86_64 is disabled
  - module perl:5.26:820181219174508:9edba152-0.x86_64 is disabled
 Problem 8: conflicting requests
  - module perl-DBD-MySQL:4.046:820181214121012:0cdc2006-0.x86_64 requires module(perl:5.24), but none of the providers can be installed
  - module perl-DBD-MySQL:4.046:820181214121012:6bc6cad6-0.x86_64 requires module(perl:5.26), but none of the providers can be installed
  - module perl:5.24:820190207164249:ee766497-0.x86_64 is disabled
  - module perl:5.26:820181219174508:9edba152-0.x86_64 is disabled
 Problem 9: conflicting requests
  - module perl-DBD-Pg:3.7:820181214121102:956b9ee3-0.x86_64 requires module(perl:5.24), but none of the providers can be installed
  - module perl-DBD-Pg:3.7:820181214121102:6fcea174-0.x86_64 requires module(perl:5.26), but none of the providers can be installed
  - module perl:5.24:820190207164249:ee766497-0.x86_64 is disabled
  - module perl:5.26:820181219174508:9edba152-0.x86_64 is disabled
Red Hat Enterprise Linux 8 for x86_64 - AppStream (RPMs)
Name                                   Stream                                        Profiles                                              Summary                                                                   
perl                                   5.24 [x]                                      common [d], minimal                                   Practical Extraction and Report Language                                  
perl                                   5.26 [d][x]                                   common [d], minimal                                   Practical Extraction and Report Language                                  

Hint: [d]efault, [e]nabled, [x]disabled, [i]nstalled


Actual results:
see steps to reproduce

Expected results:
only perl 5.24 module disabled, i.e.

Red Hat Enterprise Linux 8 for x86_64 - AppStream (RPMs)
Name                                   Stream                                        Profiles                                              Summary                                                                   
perl                                   5.24 [x]                                      common [d], minimal                                   Practical Extraction and Report Language                                  
perl                                   5.26 [d]                                      common [d], minimal                                   Practical Extraction and Report Language                    

Additional info:
Comment 1 Marek Blaha 2019-10-08 05:40:51 UTC 
Yes, this is intended behaviour of the "module disable" command. In newer versions this is also documented in the man page and reported to the user:

# rpm -q dnf libdnf
dnf-4.2.12-1.git.8979.3080966.fc30.noarch
libdnf-0.35.5-2ge5a51f77.fc30.x86_64

# dnf module disable perl:5.26
Only module name is required. Ignoring unneeded information in argument: 'perl:5.26'
Dependencies resolved.
==========================================================================================
 Package              Architecture        Version              Repository            Size
==========================================================================================
Disabling modules:
 perl                                                                                    

Transaction Summary
==========================================================================================

# man dnf
----- 8< -------
 dnf [options] module disable <module-name>...
    Disable  a  module.  All  related module streams will become unavailable.
    Consequently, all installed profiles will be removed and the module  RPMs
    will become unavailable in the package set.
----- 8< -------

So you can enable *module stream* which you want to consume, and there can be only one enabled stream, but you disable *module* as a whole.

Do you have use case which requires disabling only specific module stream? Or is backporting enhanced documentation sufficient solution?
Comment 2 Michael Mráka 2019-10-08 08:03:49 UTC 
The way it's reported on Fedora 30 is bad. As you can see in comment #0 there's a lot of other error messages reported in

  dnf module disable perl:5.24

which will cause that

  Only module name is required. Ignoring unneeded information in argument: 'perl:5.26'

line will scroll up, out of the terminal. Much better way would be to display this information in the final report like

  ==========================================================================================
   Package              Architecture        Version              Repository            Size
  ==========================================================================================
  Disabling modules:
   perl:5.24
   perl:5.26                                                                                  


> Do you have use case which requires disabling only specific module stream?

Only as a workaround for different dnf bugs (e.g. bug  #1758459).

> Or is backporting enhanced documentation sufficient solution?

Well, the man page actually contains this sentence. But it is easy to overlook it.
There should be big/bold warning at least.

And even better if you can't disable specific stream then

  dnf module disable perl:5.24

should better fail with error like 'Specific module stream can't be disabled, if you want to disable all module streams use: dnf module disable perl'.
Comment 3 Michael Mráka 2019-10-08 08:07:19 UTC 
BTW there's no man page in a container which is why a sentence buried somewhere in a man page is not sufficient.
Comment 4 Marek Blaha 2019-12-06 08:24:42 UTC 
The reporting of disabled modules was changed based on the bug https://bugzilla.redhat.com/show_bug.cgi?id=1677640. Originally dnf used to report the stream that was disabled but this is not consistent with what dnf actually do - it disables the module, there is no way how to disable particular stream. The warning was added due to the bug https://bugzilla.redhat.com/show_bug.cgi?id=1649261.
What I can do is to improve help printed by `dnf module --help` command to explicitly mention that `dnf module disable` command disable whole module with all its streams: PR https://github.com/rpm-software-management/dnf/pull/1547
Comment 10 errata-xmlrpc 2020-04-28 16:48:23 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:1823
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