Hi,
(This is happening on CentOS 6)
during a machine's kickstart I install several yum repositories which are contained in an RPM. During the %post phase I install an RPM which has a dependency to nodejs. That package with all of its dependencies can be found in EPEL. On the other hand I have the Softwarecollections repository, which also contains nodejs with the same version.
Now nodejs has a dependency on libuv:
| root@devcma01 ~ # yum deplist nodejs -q --disableexcludes=all | […] | dependency: libuv.so.0.10()(64bit) | provider: nodejs010-libuv.x86_64 1:0.10.30-1.el6 | provider: libuv.x86_64 1:0.10.34-1.el6 | provider: libuv.x86_64 1:0.10.34-1.el6
As you can see, there are two packages satisfying the dependency.
First strange behaviour:
| root@devcma01 ~ # yum --disableexcludes=all -v -d9 install nodejs | […] | nodejs-0.10.48-3.el6.x86_64 requires: libuv.so.0.10()(64bit) | --> Processing Dependency: libuv.so.0.10()(64bit) for package: nodejs-0.10.48-3.el6.x86_64 | Searching pkgSack for dep: libuv.so.0.10()(64bit) | Building updates object | up:simple updates time: 0.010 | up:obs time: 0.014 | up:condense time: 0.000 | updates time: 1.059 | TSINFO: Marking 1:nodejs010-libuv-0.10.30-1.el6.x86_64 as install for nodejs-0.10.48-3.el6.x86_64 | […]
Why is nodejs010-libuv winning over libuv? It has the longer name *and* an inferior version number. Does the amount of "requires" play a role here?
| root@devcma01 ~ # repoquery --requires libuv | wc -l | 32 | root@devcma01 ~ # repoquery --requires nodejs010-libuv | wc -l | 15
The solution seems easy: Exclude nodejs010 from softwarecollections:
| root@devcma01 /etc/yum.repos.d # grep exclude= * | python27.repo:exclude=nodejs010*
Now comes the other strange behaviour. As said: I install that repository during kickstart and then a package gets installed (within %post) that needs nodejs. The installed repo file has the "exclude" line in it. But:
| --> Processing Dependency: nodejs for package: is24-statsd-genuine-v0.7.2-677.noarch | ---> Package nodejs.x86_64 0:0.10.48-3.el6 will be installed | --> Processing Dependency: libuv.so.0.10()(64bit) for package: nodejs-0.10.48-3.el6.x86_64 | ---> Package nodejs010-libuv.x86_64 1:0.10.30-1.el6 will be installed
It is as if the exclude line isn't even honoured within the %post section of kickstart. Any idea on why that is?
Cheers,
Ralph