At 08:52 AM 1/21/2020, David G. Miller wrote:

On 1/21/20 9:35 AM, david wrote:

...

Folks

In a test Centos 8 installation as a guest of VirtualBox on Windows 10, I want to install ffmpeg, and support for exfat. They're not in the standard distribution (as far as I know), so I issue as root:

 yum -y --enablerepo rpmfusion-free-updates install ffmpeg fuse-exfat exfat-utils

and that works just fine. The ffmpeg functionality works; I haven't tested exfat yet. However, later, as part of maintenance, I want to get a list of everything that's installed, so I issue

 yum list installed

and the following diagnostics occur:

Modular dependency problems:

 Problem 1: conflicting requests  - nothing provides module(perl:5.26) needed by module perl-App-cpanminus:1.7044:8010020191120175858:a9207fc6-0.x86_64  Problem 2: conflicting requests  - nothing provides module(perl:5.26) needed by module perl-DBD-MySQL:4.046:8010020191114030811:073fa5fe-0.x86_64  Problem 3: conflicting requests  - nothing provides module(perl:5.26) needed by module perl-DBD-SQLite:1.58:8010020191114033549:073fa5fe-0.x86_64  Problem 4: conflicting requests  - nothing provides module(perl:5.26) needed by module perl-DBI:1.641:8010020191113222731:16b3ab4d-0.x86_64  Problem 5: conflicting requests  - nothing provides module(perl:5.26) needed by module perl-YAML:1.24:8010020191114031501:a5949e2e-0.x86_64 Installed Packages

<long list follows> ------------------------------

By the way, cpanm works ok too.

My questions are: What do these diagnostics tell me? What am I supposed to do about it?

Thanks for your help

David

I think its telling you that perl is NOT installed but the listed perl modules are installed although it could be looking for specifically the 5.26 version of perl (since you mentioned the CPAN works). What happens if you issue perl -v? perl gets installed as a dependency of logwatch as an example so a lot of people don't realize that they have perl installed whether they want it or not.

Cheers, Dave

-- "They that can give up essential liberty to obtain a little temporary safety deserve neither safety nor liberty."

-- Benjamin Franklin

Perl is explicitly installed, "perl -v" identifies v5.26.3, and comes from the standard Centos 8 repositories. So, I suspect your interpretation doesn't fit the facts. David K

On 1/21/20 10:10 AM, david wrote:

...

At 08:52 AM 1/21/2020, David G. Miller wrote:

...

On 1/21/20 9:35 AM, david wrote:

...

Folks

In a test Centos 8 installation as a guest of VirtualBox on Windows 10, I want to install ffmpeg, and support for exfat. They're not in the standard distribution (as far as I know), so I issue as root:

  yum -y --enablerepo rpmfusion-free-updates install ffmpeg fuse-exfat exfat-utils

and that works just fine.  The ffmpeg functionality works; I haven't tested exfat yet.  However, later, as part of maintenance, I want to get a list of everything that's installed, so I issue

  yum list installed

and the following diagnostics occur:

Modular dependency problems:

 Problem 1: conflicting requests   - nothing provides module(perl:5.26) needed by module perl-App-cpanminus:1.7044:8010020191120175858:a9207fc6-0.x86_64  Problem 2: conflicting requests   - nothing provides module(perl:5.26) needed by module perl-DBD-MySQL:4.046:8010020191114030811:073fa5fe-0.x86_64  Problem 3: conflicting requests   - nothing provides module(perl:5.26) needed by module perl-DBD-SQLite:1.58:8010020191114033549:073fa5fe-0.x86_64  Problem 4: conflicting requests   - nothing provides module(perl:5.26) needed by module perl-DBI:1.641:8010020191113222731:16b3ab4d-0.x86_64  Problem 5: conflicting requests   - nothing provides module(perl:5.26) needed by module perl-YAML:1.24:8010020191114031501:a5949e2e-0.x86_64 Installed Packages

<long list follows> ------------------------------

By the way, cpanm works ok too.

My questions are: What do these diagnostics tell me?  What am I supposed to do about it?

Thanks for your help

David

I think its telling you that perl is NOT installed but the listed perl modules are installed although it could be looking for specifically the 5.26 version of perl (since you mentioned the CPAN works).  What happens if you issue perl -v?  perl gets installed as a dependency of logwatch as an example so a lot of people don't realize that they have perl installed whether they want it or not.

Cheers, Dave

-- "They that can give up essential liberty to obtain a little temporary safety deserve neither safety nor liberty."

-- Benjamin Franklin

Perl is explicitly installed,  "perl -v" identifies v5.26.3, and comes from the standard Centos 8 repositories.  So, I suspect your interpretation doesn't fit the facts. David K _______________________________________________ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos

Not seeing that here but it appears you are running newer versions of at least perl-DBD-MySQL, perl-DBD-SQLite and perl-DBI (snipped from "yum list installed" on my CentOS 8 VM after running "yum update"):

perl-DBD-MySQL.x86_64                     4.023-6.el7 @anaconda perl-DBD-SQLite.x86_64                    1.39-3.el7 @anaconda perl-DBI.x86_64                           1.627-4.el7 @anaconda

What repo are you pulling the listed packages from?  Is it the same repo as for perl?  I'm getting:

Maybe it's worth to have a look a yum.log to see what happened to perl in the history of the installation?

Simon

At 08:10 AM 1/22/2020, you wrote:

On Tue, Jan 21, 2020 at 08:35:14AM -0800, david wrote:

...

yum list installed

and the following diagnostics occur:

Modular dependency problems:

Problem 1: conflicting requests

• nothing provides module(perl:5.26) needed by module

perl-App-cpanminus:1.7044:8010020191120175858:a9207fc6-0.x86_64 Problem 2: conflicting requests

• nothing provides module(perl:5.26) needed by module

perl-DBD-MySQL:4.046:8010020191114030811:073fa5fe-0.x86_64 Problem 3: conflicting requests

• nothing provides module(perl:5.26) needed by module

perl-DBD-SQLite:1.58:8010020191114033549:073fa5fe-0.x86_64 Problem 4: conflicting requests

• nothing provides module(perl:5.26) needed by module

perl-DBI:1.641:8010020191113222731:16b3ab4d-0.x86_64 Problem 5: conflicting requests

• nothing provides module(perl:5.26) needed by module

perl-YAML:1.24:8010020191114031501:a5949e2e-0.x86_64 Installed Packages

<long list follows> ------------------------------

By the way, cpanm works ok too.

Do you have the AppStream repo enabled? I get similar problems if I've installed Perl from there and then disabled it:

# dnf --disablerepo=AppStream list perl Last metadata expiration check: 0:02:11 ago on Wed 22 Jan 2020 11:07:31 AM EST. Modular dependency problems:

Problem 1: conflicting requests

• nothing provides module(perl:5.26) needed by module

perl-DBD-SQLite:1.58:8010020191114033549:073fa5fe-0.x86_64 Problem 2: conflicting requests

• nothing provides module(perl:5.26) needed by module

perl-DBI:1.641:8010020191113222731:16b3ab4d-0.x86_64 Installed Packages perl.x86_64 4:5.26.3-416.el8 @AppStream

Jonathan: yum repolist shows: AppStream (centos-8) BaseOS (centos-8) PowerTools (centos 8) epel (Extra packages for..) extras (centos-8) remi-modular remi-safe

I suppose that means that those are currently active.