Created attachment 987216 [details]
Log from 'docker build'

Description of problem:
When trying to run 'yum -y update' in a fedora:21-based container, an error installing the filesystem package causes failure.

My Dockerfile started:

FROM fedora:21
MAINTAINER Tim Waugh <twaugh>
RUN yum -y update && yum clean all

Version-Release number of selected component (if applicable):
filesystem-3.2-28.fc21.x86_64

How reproducible:
100%

Steps to Reproduce:
cat >Dockerfile <<EOF
FROM fedora:21
MAINTAINER Tim Waugh <twaugh>
RUN yum -y update && yum clean all
EOF
docker build -t test --rm .

Actual results:
See attached build log.