[Bug 1570580] Re: Existing Logical Volumes on multipathed SCSI disks are not automatically activated during installation

[Frank Heimes]

Now I did another test and installed the same LPAR again, but now using a bunch of DASD disks for the root fs and just added the same existing FCP LUN this time to /space, proceeded with the installation, completed it, rebooted, and now can still find the initially created two test files (and for sure the entire old root file system now located at /space).
For details see attached file test2.txt.

** Attachment added: "test2.txt"
   https://bugs.launchpad.net/ubuntu/+source/debian-installer/+bug/1570580/+attachment/5146014/+files/test2.txt

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Title:
  Existing Logical Volumes on multipathed SCSI disks are not
  automatically activated during installation

Status in Ubuntu on IBM z Systems:
  Fix Released
Status in debian-installer package in Ubuntu:
  Fix Released

Bug description:
  Installer version: 447
  Kernel: 4.4.0.18
  Description/Reproduction:
  Logical Volumes that exist on multipathed SCSI disks from a previous installation are not automatically activated and thus can not be reused. Only the partitions are visible and that their type is "lvm" (s. screenshot). 

  Workaround:

  When the partitioned disks are shown in the "Partition disks" menu,
  open a shell. Then list all logical volumes with command lvs, and set
  each logical volume active with lvchange -ay
  <volumegroupname>/<lvolname>. Choose "Configure the Logical Volume
  Manager", confirm keeping current partition layout with "Yes"  and
  "Finish" without changing anything. Then the Logical Volumes are
  displayed in the "Partition disks" menu and filesystems can be created
  and mountpoints defined.

  I will attach syslog and partman of the installation attempt.

  So obviously an lvchange -ay on all detected lolgical volumes is
  missing at the proper time....

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