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Bug 1947028 - Please remove mailx dependency
Summary: Please remove mailx dependency
Alias: None
Product: Red Hat Enterprise Linux 9
Classification: Red Hat
Component: redhat-lsb
Version: 9.0
Hardware: Unspecified
OS: Unspecified
Target Milestone: beta
: ---
Assignee: Lukáš Nykrýn
QA Contact: qe-baseos-daemons
Depends On:
Blocks: 1887522
TreeView+ depends on / blocked
Reported: 2021-04-07 14:10 UTC by Nikola Forró
Modified: 2021-06-02 12:47 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed: 2021-06-02 12:47:40 UTC
Type: Bug
Target Upstream Version:

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Description Nikola Forró 2021-04-07 14:10:49 UTC
mailx is supposed to be replaced with s-nail in RHEL 9. Both packages provide /usr/bin/mailx, but only mailx provides /bin/mailx, which is what redhat-lsb-core depends on. Is there a reason for that?

There is a discussion about the change from /usr/bin/mailx to /bin/mailx in bug #460249, but to be honest I don't understand the reasoning.

Comment 1 rlemosor 2021-05-06 18:31:44 UTC
Nikola, what would be the next steps here? What packing work must be done in redhat-lsb-core to remove the dependency on mailx?

Am asking if Troy could kindly help us here or suggest a path forward if need be. Troy, how would you analyse the case?

Comment 2 Troy Dawson 2021-05-06 18:46:48 UTC
/usr/bin/mailx is the same as /bin/mailx, because nowdays /bin is just a symlink to /usr/bin
The discussion you are pointing to is an old one, and is before that symlink became the standard.

Because of that s-nail actually does provide both /usr/bin/mailx and /bin/mailx.  The only real problem is that dnf and rpm doesn't always see it.

If you look at the mailx.spec file you will see it manually has the provides in it.

# For backwards compatibility:
Provides: /bin/mail
Provides: /bin/mailx

My suggestion is to put the same provides in s-nail, because it does indeed provide them.  Something like this.

--- a/s-nail.spec
+++ b/s-nail.spec
@@ -24,6 +24,9 @@ Requires(post):   %{_sbindir}/update-alternatives
 Requires(postun): %{_sbindir}/update-alternatives
 Requires(preun):  %{_sbindir}/update-alternatives
+# For backwards compatibility:
+Provides: /bin/mail
+Provides: /bin/mailx
 S-nail provides a simple and friendly environment for sending

Comment 3 Troy Dawson 2021-05-06 18:48:35 UTC
Don't forget to put that change in Fedora, because it looks like it's missing the Provides there as well.

Comment 4 Nikola Forró 2021-05-07 09:10:23 UTC
Ok, let's do it this way, I'll add the virtual provides to s-nail. Is there really a reason for redhat-lsb to depend on /bin/mailx though? Especially since all the other dependencies are /usr/bin/*.

Comment 5 Troy Dawson 2021-05-07 13:27:51 UTC
Very good question.  I have no idea.
I would hope if you contacted them, or opened a bug on it, the package maintainers would know.

Comment 6 Lukáš Nykrýn 2021-06-02 12:47:40 UTC
I spoke to Nikola and this one should be fine. s-nail will have the  /bin/mailx provide

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