Initial program load (IPL) in s390 system selects wrong minidisk while booting up

Solution Unverified - Updated -


  • After the installation of RHEL 6.2 on s390, when system was rebooted Initial program load (IPL) selects wrong minidisk to boot, and the system fails to boot.

    00: built on IBM Virtualization Technology
    00: There is no logmsg data
    00: FILES: 0001 RDR,
    00: LOGON AT 11:08:09 EDT SUNDAY 11/02/08
    z/VM V5.4.0
    2008-10-24 11:04
    DMSACP723I A (191) R/O
    DMSACP723I C (592) R/O
    Do you want to IPL Linux from minidisk 100? y/n <---


  • Red Hat Enterprise Linux 6.2
  • s390, more than one minidisks.

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