Vagrant+VirtualBox+vagrant-vbguest+CentOSでGuest Additionsがビルドできない一部のbox向け設定

Vagrantfile

class KernelDevelInstaller < VagrantVbguest::Installers::RedHat
  def install(opts=nil, &block)
    communicate.sudo(%q!OSREL=$(cat /etc/redhat-release | cut -d ' ' -f 4) && grep -q C${OSREL}- /etc/yum.repos.d/CentOS-Vault.repo || (cat /etc/yum.repos.d/CentOS-Vault.repo | grep -v ^# | sed '/-extras/,$d' | sed -e "s/[0-9]\.[0-9][0-9]*\(\.[0-9][0-9][0-9][0-9]\)/${OSREL}/" > /tmp/repo && cat /tmp/repo >> /etc/yum.repos.d/CentOS-Vault.repo && rm /tmp/repo && yum install -y "kernel-devel-$(uname -r)" --enablerepo="C${OSREL}-base,C${OSREL}-updates")!)
    super
  end
end

Vagrant.configure(2) do |config|
  config.vbguest.installer = KernelDevelInstaller
  ...
end