[Bug 1400030] Re: ofpath generates wrong OpenFirmware path for boot device

[ArminiusTux]

** Tags added: ppc yaboot

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https://bugs.launchpad.net/bugs/1400030

Title:
  ofpath generates wrong OpenFirmware path for boot device

Status in yaboot package in Ubuntu:
  Confirmed

Bug description:
  in Ubuntu 14.10 (powerpc) ofpath generates incorrect OpenFIrmware
  device path. This path is used in yaboot.conf and in ofboot.b

  Because of this issue, system will not boot. The problem happens
  during install procedure and after otherwise sucessful installation
  system fails to boot.

  Most likely (but not directly verified) the issue is already present
  in Ubuntu 14.04

  ifpath returns:
  ofpath /dev/sdb
  /ht at 0,f2000000/pci at 9/k2-sata-root at c/@ffffffffffffffff/@0

  while OF wants:
  /ht at 0,f2000000/pci at 9/k2-sata-root at c/k2-sata at 1/disk at 0

  
  Kernel got it right:
  /proc/device-tree/ht at 0,f2000000/pci at 9/k2-sata-root at c/k2-sata at 1/disk at 0

  
  Kernel version:
  uname -a
  Linux powermac 3.16.0-25-powerpc64-smp #33-Ubuntu SMP Tue Nov 4 12:22:53 UTC 2014 ppc64 ppc64 ppc64 GNU/Linux
  lsb_release -rd
  Description:    Ubuntu 14.10
  Release:        14.10
  apt-cache policy yaboot
  yaboot:
    Installed: 1.3.16-4ubuntu1
    Candidate: 1.3.16-4ubuntu1
    Version table:
   *** 1.3.16-4ubuntu1 0
          500 http://ports.ubuntu.com/ubuntu-ports/ utopic/main powerpc Packages
          100 /var/lib/dpkg/status

  
  Machine: Powermac G5 QUAD, specs at:
  https://gist.github.com/anonymous/5b3cc9c9fc91abf577ca

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