Thanks Jan. As far as I can see that does not help resolve the versioning clash between the 'current' golang and the golang from virt7-docker-common-candidate Full output follows: [root at vm139 admin]# yum install golang.x86_64 golang-src.x86_64 Loaded plugins: fastestmirror, langpacks Loading mirror speeds from cached hostfile * base: mirror.as29550.net * extras: mirror.econdc.com * updates: repo.bigstepcloud.com No package golang-src.x86_64 available. Resolving Dependencies --> Running transaction check ---> Package golang.x86_64 0:1.5.1-1.el7 will be installed --> Processing Dependency: golang-src = 1.5.1-1.el7 for package: golang-1.5.1-1.el7.x86_64 --> Processing Dependency: golang-bin for package: golang-1.5.1-1.el7.x86_64 --> Processing Dependency: go-srpm-macros for package: golang-1.5.1-1.el7.x86_64 --> Running transaction check ---> Package go-srpm-macros.noarch 0:2-3.el7 will be installed ---> Package golang.x86_64 0:1.5.1-1.el7 will be installed --> Processing Dependency: golang-src = 1.5.1-1.el7 for package: golang-1.5.1-1.el7.x86_64 ---> Package golang-bin.x86_64 0:1.5.1-1.el7 will be installed --> Finished Dependency Resolution Error: Package: golang-1.5.1-1.el7.x86_64 (virt7-testing) Requires: golang-src = 1.5.1-1.el7 Available: golang-src-1.4.2-1.el7.centos.noarch (extras) golang-src = 1.4.2-1.el7.centos Available: golang-src-1.4.2-9.el7.noarch (base) golang-src = 1.4.2-9.el7 You could try using --skip-broken to work around the problem You could try running: rpm -Va --nofiles --nodigest [root at vm139 admin]# [root at vm139 admin]# yum info golang Loaded plugins: fastestmirror, langpacks Loading mirror speeds from cached hostfile * base: mirror.as29550.net * extras: mirror.cov.ukservers.com * updates: repo.bigstepcloud.com Available Packages Name : golang Arch : x86_64 Version : 1.5.1 Release : 1.el7 Size : 1.1 M Repo : virt7-testing Summary : The Go Programming Language URL : http://golang.org/ Licence : BSD Description : The Go Programming Language. [root at vm139 admin]# yum info golang-src Loaded plugins: fastestmirror, langpacks Loading mirror speeds from cached hostfile * base: mirror.ox.ac.uk * extras: mirror.cov.ukservers.com * updates: repo.bigstepcloud.com Available Packages Name : golang-src Arch : noarch Version : 1.4.2 Release : 9.el7 Size : 5.8 M Repo : base/7/x86_64 Summary : Golang compiler source tree URL : http://golang.org/ Licence : BSD Description : Golang compiler source tree [root at vm139 admin]#