Bug 1118988

Getting similar too. Few months ago I ran:
yum remove vim-minimal-7.4.179-1.fc20.x86_64

And today during update:
  Installing : kernel-3.15.6-200.fc20.x86_64                                                 1/6 
  Installing : kernel-modules-extra-3.15.6-200.fc20.x86_64                                   2/6 
  Updating   : kernel-headers-3.15.6-200.fc20.x86_64                                         3/6 
  Cleanup    : kernel-modules-extra-3.14.3-200.fc20.x86_64                                   4/6 
  Cleanup    : kernel-3.14.3-200.fc20.x86_64                                                 5/6 
  Cleanup    : kernel-headers-3.15.5-200.fc20.x86_64                                         6/6 
dracut-install: ERROR: installing '/etc/virc'
/usr/lib/dracut/dracut-install -D /var/tmp/initramfs.N8s7fW -a vi /etc/virc ps grep cat rm
  Verifying  : kernel-headers-3.15.6-200.fc20.x86_64                                         1/6 
  Verifying  : kernel-modules-extra-3.15.6-200.fc20.x86_64                                   2/6 
  Verifying  : kernel-3.15.6-200.fc20.x86_64                                                 3/6 
  Verifying  : kernel-modules-extra-3.14.3-200.fc20.x86_64                                   4/6 
  Verifying  : kernel-headers-3.15.5-200.fc20.x86_64                                         5/6 
  Verifying  : kernel-3.14.3-200.fc20.x86_64

This is affecting also mock builds when the kernel package is one of the dependencies. Rising severity since this make such builds to fail.

As a workaround on mock, you can install the vim-minimal package manually before running it

dracut should depend on vim-minimal.

Same problem in rhel7.

commit 54b68829b60bc3f4c28cfca1ab0336584fe1e74c


Workaround:

echo 'install_items=" ps grep cat rm "' > /etc/dracut.conf.d/50-no-vi.conf

*** Bug 1221393 has been marked as a duplicate of this bug. ***

dracut-037-13.git20150518.fc20 has been submitted as an update for Fedora 20.
https://admin.fedoraproject.org/updates/dracut-037-13.git20150518.fc20

Package dracut-037-13.git20150518.fc20:
* should fix your issue,
* was pushed to the Fedora 20 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing dracut-037-13.git20150518.fc20'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2015-8502/dracut-037-13.git20150518.fc20
then log in and leave karma (feedback).

This message is a reminder that Fedora 20 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 20. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as EOL if it remains open with a Fedora  'version'
of '20'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version.

Thank you for reporting this issue and we are sorry that we were not 
able to fix it before Fedora 20 is end of life. If you would still like 
to see this bug fixed and are able to reproduce it against a later version 
of Fedora, you are encouraged  change the 'version' to a later Fedora 
version prior this bug is closed as described in the policy above.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events. Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

dracut-037-13.git20150518.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.