[Spacewalk-list] cannot boot after kernel update

[Huber, Peter]

I have updated 2 centos  hosts today. The following updates were installed:

    firewalld-0.4.3.2-8.1.el7_3.3.noarch
    libnetfilter_conntrack-1.0.6-1.el7_3.x86_64
    sudo-1.8.6p7-22.el7_3.x86_64
    dracut-config-rescue-033-463.el7_3.1.x86_64
    nss-sysinit-3.28.4-1.2.el7_3.x86_64
    yum-rhn-plugin-2.6.4-1.el7.noarch
    NetworkManager-wifi-1.4.0-20.el7_3:1.x86_64
    glibc-2.17-157.el7_3.2.x86_64
    nss-tools-3.28.4-1.2.el7_3.x86_64
    systemd-sysv-219-30.el7_3.9.x86_64
    python-perf-3.10.0-514.21.1.el7.centos.plus.x86_64
    systemd-219-30.el7_3.9.x86_64
    kpartx-0.4.9-99.el7_3.3.x86_64
    systemd-libs-219-30.el7_3.9.x86_64
    firewalld-filesystem-0.4.3.2-8.1.el7_3.3.noarch
    java-1.8.0-openjdk-devel-1.8.0.131-3.b12.el7_3:1.x86_64
    NetworkManager-team-1.4.0-20.el7_3:1.x86_64
    java-1.8.0-openjdk-headless-1.8.0.131-3.b12.el7_3:1.x86_64
    polkit-0.112-12.el7_3.x86_64
    systemd-python-219-30.el7_3.9.x86_64
    tuned-2.7.1-3.el7_3.2.noarch
    nss-3.28.4-1.2.el7_3.x86_64
    rdma-7.3_4.7_rc2-6.el7_3.noarch
    NetworkManager-1.4.0-20.el7_3:1.x86_64
    NetworkManager-tui-1.4.0-20.el7_3:1.x86_64
    dracut-033-463.el7_3.1.x86_64
    java-1.8.0-openjdk-1.8.0.131-3.b12.el7_3:1.x86_64
    dracut-network-033-463.el7_3.1.x86_64
    kernel-tools-3.10.0-514.21.1.el7.x86_64
    libgudev1-219-30.el7_3.9.x86_64
    python-firewall-0.4.3.2-8.1.el7_3.3.noarch
    kernel-tools-libs-3.10.0-514.21.1.el7.x86_64
    glibc-common-2.17-157.el7_3.2.x86_64
    NetworkManager-libnm-1.4.0-20.el7_3:1.x86_64
    kernel-3.10.0-514.21.1.el7.x86_64

after a reboot, both servers do not start anymore. There is a kernel panic -  not syncing: VFS: Unable to mount root fs on unknown wm block(0,0)

Any idea what can cause this problem? Both servers got this kernel-update....

Regards

Peter

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