CODEWITHSUNDEEP
centos7yumrpmbuild
Jem Tucker
Jem Tucker

Reputation: 1163

Yum does not resolve new package dependencies on local upgrade

I have an RPM package mypackge and recent changes my software have required me to add OpenSSL v1.0.2 as a dependency.

Initially the RPM spec contained the following requires line: 

Requires: openssl policycoreutils-python python2-pip ...

I have updated this line to:

Requires: openssl >= 1.0.2 policycoreutils-python python2-pip ...

This seems to work perfectly for new installs, the new dependency is resolved and installed as expected. The problem comes when I try to update an existing installation...

[root@vm]# yum install mypackage-1.2.1.4-1.x86_64.rpm
Loaded plugins: fastestmirror
Examining mypackage-1.2.1.4-1.x86_64.rpm: mypackage-1.2.1.4-1.x86_64
Marking mypackage-1.2.1.4-1.x86_64.rpm as an update to mypackage-1.2.1.3-1.x86_64
Resolving Dependencies
--> Running transaction check
---> Package mypackage-1.2.1.3-1 will be updated
---> Package mypackage-1.2.1.4-1 will be an update
--> Finished Dependency Resolution

Dependencies Resolved
===========================================================================
Package    Arch    Version    Repository                            Size
===========================================================================
Updating:
mypackage  x86_64  1.2.1.4-1  /mypackage-1.2.1.4-1.x86_64.rpm       5.0 M

Transaction Summary
===========================================================================
Upgrade  1 Package

For some reason the new OpenSSL dependency is not resolved or installed, is this expected behavior and if so how should I go about adding additional dependencies to existing software packages?

Thanks in advance!

Upvotes: 2

Views: 1120

Answers (1)

Chris Maes
Chris Maes

Reputation: 37832

The problem is linked to epoch numbering. Your version requires openssl >= 1.0.2. However the openssl package provides 1:1.0.1. The epoch number is the most important number. In fact rpm read your requirement openssl >= 1.0.2 as openssl >= 0:1.0.2.

Your problem will be solved if you say:

Requires: openssl >= 1:1.0.2

NOTE : when you make a clean install and openssl was not yet installed; yum takes the latest version by default; which tricked you into thinking that your requirement worked.

for further reading; look here

Upvotes: 3

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