[Bug 1651838] Re: bootup halted, lvms NOT active, one LV lost

[Gerben]

Hi,

I've reported this upstream
(https://bugzilla.redhat.com/show_bug.cgi?id=1413106), and this is not a
bug: thin-provisioning should be used. Snapshots defined on thin-
provisioned LV's show good characteristics.

Gerben

** Bug watch added: Red Hat Bugzilla #1413106
   https://bugzilla.redhat.com/show_bug.cgi?id=1413106

** Changed in: lvm2 (Ubuntu)
       Status: New => Invalid

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Title:
  bootup halted, lvms NOT active, one LV lost

Status in lvm2 package in Ubuntu:
  Invalid

Bug description:
  Hi,

  The bootup process is stopping in 'emergency mode', I have to manually
  intervene and perform a 'vgchange -a y' and after 3.5 minutes 6
  logical volumes are active (however I do have 7). Only then I can
  finalize the boot process.

  Subsequent (all) boots I have to intervene. lvdisplay fails to show
  one logical volume, which is shown under /dev/mapper. This volume is
  not used, just contained some offline data.

  I also had an unplanned reboot a few days ago on the machine without
  having it under a load. The lost LV was not in use at that time (has
  not been mounted for a long time).

  I've got one snapshot defined, which acts as a mirror (LV Size same as
  origin), with only 4.31 % allocated to that snapshot.

  When viewing the system with a live desktop only the 'cow' LV is shown
  under /dev/mapper, none of the other LV's.

  Why is this unused LV lost?

  The data on the 'lost' LV is not needed at the moment. I'll leave
  things 'as is' for the moment for investigation.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: lvm2 2.02.133-1ubuntu10
  ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35
  Uname: Linux 4.4.0-57-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.4
  Architecture: amd64
  Date: Wed Dec 21 19:25:22 2016
  InstallationDate: Installed on 2016-06-01 (202 days ago)
  InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.3)
  ProcEnviron:
   LANGUAGE=en_US:en
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: lvm2
  UpgradeStatus: No upgrade log present (probably fresh install)

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