Comment # 1 on bug 1044918 from Michel Normand

* retrieved data start_install-y2logs.tar.bz2
  unpack it and look at y2log
  reported error as missing libgraphene-1.0.so.0
  TODO: why such error not detected at iso build time ?
* retrieve the last build logs in obs, search libgraphene in them:
  dvd5_ppc64le_20170618.log <= not found
  _product_openSUSE_ftp_ftp_ppc64_ppc64le_20170618.log <= found
* retrieve the iso in abanc, then mount it
  as reported below there is no ref in iso of libgraphene rpm
  (that only confirm the problem is in build of iso)
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$mount -o loop,ro -t iso9660
openSUSE-Tumbleweed-DVD-ppc64le-Snapshot20170618-Media.iso /tmp/mnt/
$find /tmp/mnt/ -name '*rpm' |grep gstreamer.plugins.bad
/tmp/mnt/suse/ppc64le/gstreamer-plugins-bad-1.12.0-1.1.ppc64le.rpm
$find /tmp/mnt/ -name '*rpm' |grep libgraphene <= nothing reported
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