Local disk partitions are not created at boot time on multipath-blacklisted devices in RHEL 6

Solution Verified - Updated -

Issue

  • Disk partitions are not created at boot time for local storage with a single path
  • System panics on boot as it can't find the root logical volume or partition on the local storage device.
  • When my local device is blacklisted by vendor/model in /etc/multipath.conf, partitions do not get created, or are created and quickly removed.
  • Running a partprobe after boot brings partitions back
  • We updated the kernel and now the system won't boot.

Environment

  • Red Hat Enterprise Linux (RHEL) 6
  • device-mapper-multipath prior to release 0.4.9-64.el6
  • Devices blacklisted in /etc/multipath.conf by vendor/model, for example:
blacklist {
        device {
                vendor "DELL"
                product "PERC H700"
        }
}

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