Upgrading RHV hosts to RHV4.4 with kickstart files

Solution Verified - Updated

Environment

  • RHV 4.4 upgrade
  • Block storage domains
  • Using kickstart files for hosts provisioning

Issue

Are there any consideration for RHV 4.4 upgrade, if I my RHV environment has Block Storage Domains and I use kickstart to provision my RHV hosts?

Resolution

There has been a kickstart/anaconda bug in RHEL 8.2 that renders ignoredisks --drives directive in kickstart files unreliable (private RHBZ#1641863). With that Red Hat highly recommends to do one of the following to mitigate the issue until anaconda is fixed:

  • use ignoredisk --only-use instead
  • clearly specify the OS disk in all kickstart directives
  • detach the shared storage prior to upgrading as recommended anyways.
    This can be achieved by e.g. changing the zoning or blacklisting the FC-driver for the installation.

Root Cause

The issue was initially reported in this RHV BZ: This content is not included.This content is not included.https://bugzilla.redhat.com/show_bug.cgi?id=1860923

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