Installation fails when utilizing FBA EDEV disks

Solution Verified - Updated -

Issue

  • Installation fails when utilizing FBA EDEV disks:

    /dev/dasde is not an ECKD disk!
dasdfmt: Unsupported disk type
/dev/dasdc is not an ECKD disk!
dasdfmt: Unsupported disk type
/dev/dasdb is not an ECKD disk!
dasdfmt: Unsupported disk type
/dev/dasdd is not an ECKD disk!

  • Kickstart installation is failing when trying to mount the root file system from device dasdb1 on a IBM z196 Mainframe. The disk subsystem is a V7000 FBA storage. This storage is attached to z/VM 6.1 via an EDEV and then passed to the guest in question as a mini disk.

  • An error was encountered while formatting device /dev/dasddb2:

    details: invalid device specification

Environment

  • S390 hardware architecture
  • FBA EDEV disk devices
  • Red Hat Enterprise Linux 6.0
  • Red Hat Enterprise Linux 6.1
  • Red Hat Enterprise Linux 6.2
  • Red Hat Enterprise Linux 6.3
  • Red Hat Enterprise Linux 6.4

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