Bug#343066: lvm2: LVM fails to work without running vgscan first

[Kyle Gordon]

Package: lvm2
Version: 2.01.04-5
Severity: normal

Hi folks,

After upgrading to 2.6.14-2-686-smp, I get errors when trying to start
my LVM2 array. It claims it is unable to find the UUID of two disks,
and pvdisplay shows the disks but without their UUID or device name.
After vgscan is run, pvdisplay shows the correct UUID and device
information
and the array can be loaded as normal. Examples are below.

Minor glitch aside, keep up the great work guys :-)

Regards

Kyle

flat:~# uname -a
Linux flat 2.6.14-2-686-smp #2 SMP Fri Dec 9 10:20:41 UTC 2005 i686 GNU/Linux
flat:~# uptime
 10:45:51 up 3 min,  1 user,  load average: 0.24, 0.15, 0.06
flat:~# /etc/init.d/lvm restart
Shutting down LVM Volume Groups...
  Couldn't find device with uuid 'vahqgP-c45r-QTDR-o522-FFrR-H7Xv-Sbs6n8'.
  Couldn't find all physical volumes for volume group vg_store1.
  Couldn't find device with uuid 'vahqgP-c45r-QTDR-o522-FFrR-H7Xv-Sbs6n8'.
  Couldn't find all physical volumes for volume group vg_store1.
  Unable to find volume group "vg_store1"
flat:~# vgdisplay
  Couldn't find device with uuid 'vahqgP-c45r-QTDR-o522-FFrR-H7Xv-Sbs6n8'.
  Couldn't find all physical volumes for volume group vg_store1.
  Couldn't find device with uuid 'vahqgP-c45r-QTDR-o522-FFrR-H7Xv-Sbs6n8'.
  Couldn't find all physical volumes for volume group vg_store1.
  Volume group "vg_store1" doesn't exist
flat:~# pvdisplay
  Couldn't find device with uuid 'vahqgP-c45r-QTDR-o522-FFrR-H7Xv-Sbs6n8'.
  Couldn't find device with uuid 'vjl5Mq-21B6-gmg9-zXEP-c3uy-kFKv-U6l0zz'.
  Couldn't find device with uuid 'vahqgP-c45r-QTDR-o522-FFrR-H7Xv-Sbs6n8'.
  Couldn't find device with uuid 'vjl5Mq-21B6-gmg9-zXEP-c3uy-kFKv-U6l0zz'.
  --- Physical volume ---
  PV Name               /dev/hdb
  VG Name               vg_store1
  PV Size               57.23 GB / not usable 0
  Allocatable           yes (but full)
  PE Size (KByte)       4096
  Total PE              14651
  Free PE               0
  Allocated PE          14651
  PV UUID               7cryMN-plCs-YuF2-fpxn-BcIJ-OKpG-t3yRQf

  --- Physical volume ---
  PV Name               /dev/hda6
  VG Name               vg_store1
  PV Size               64.26 GB / not usable 0
  Allocatable           yes (but full)
  PE Size (KByte)       4096
  Total PE              16451
  Free PE               0
  Allocated PE          16451
  PV UUID               QYXz9O-6ySA-aTEM-Y6GY-GrHS-5q2C-NQoePQ

  --- Physical volume ---
  PV Name               unknown device
  VG Name               vg_store1
  PV Size               76.69 GB / not usable 0
  Allocatable           yes (but full)
  PE Size (KByte)       4096
  Total PE              19633
  Free PE               0
  Allocated PE          19633
  PV UUID               vahqgP-c45r-QTDR-o522-FFrR-H7Xv-Sbs6n8

  --- Physical volume ---
  PV Name               unknown device
  VG Name               vg_store1
  PV Size               279.48 GB / not usable 0
  Allocatable           yes
  PE Size (KByte)       4096
  Total PE              71547
  Free PE               4
  Allocated PE          71543
  PV UUID               vjl5Mq-21B6-gmg9-zXEP-c3uy-kFKv-U6l0zz

flat:~# vgscan
  Reading all physical volumes.  This may take a while...
  Found volume group "vg_store1" using metadata type lvm2
flat:~# pvdisplay
  --- Physical volume ---
  PV Name               /dev/hdb
  VG Name               vg_store1
  PV Size               57.23 GB / not usable 0
  Allocatable           yes (but full)
  PE Size (KByte)       4096
  Total PE              14651
  Free PE               0
  Allocated PE          14651
  PV UUID               7cryMN-plCs-YuF2-fpxn-BcIJ-OKpG-t3yRQf

  --- Physical volume ---
  PV Name               /dev/hda6
  VG Name               vg_store1
  PV Size               64.26 GB / not usable 0
  Allocatable           yes (but full)
  PE Size (KByte)       4096
  Total PE              16451
  Free PE               0
  Allocated PE          16451
  PV UUID               QYXz9O-6ySA-aTEM-Y6GY-GrHS-5q2C-NQoePQ

  --- Physical volume ---
  PV Name               /dev/hdg
  VG Name               vg_store1
  PV Size               76.69 GB / not usable 0
  Allocatable           yes (but full)
  PE Size (KByte)       4096
  Total PE              19633
  Free PE               0
  Allocated PE          19633
  PV UUID               vahqgP-c45r-QTDR-o522-FFrR-H7Xv-Sbs6n8

  --- Physical volume ---
  PV Name               /dev/hdh
  VG Name               vg_store1
  PV Size               279.48 GB / not usable 0
  Allocatable           yes
  PE Size (KByte)       4096
  Total PE              71547
  Free PE               4
  Allocated PE          71543
  PV UUID               vjl5Mq-21B6-gmg9-zXEP-c3uy-kFKv-U6l0zz

flat:~# /etc/init.d/lvm restart
Shutting down LVM Volume Groups...
  0 logical volume(s) in volume group "vg_store1" now active
Setting up LVM Volume Groups...
  Reading all physical volumes.  This may take a while...
  Found volume group "vg_store1" using metadata type lvm2
  /dev/vg_store1: opendir failed: No such file or directory
  1 logical volume(s) in volume group "vg_store1" now active
flat:~# df -h /misc/store/
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg_store1-lv_store
                      478G  380G   99G  80% /misc/store
flat:~#

-- System Information:
Debian Release: testing/unstable
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.14-2-686-smp
Locale: LANG=en_GB, LC_CTYPE=en_GB (charmap=ISO-8859-1)

Versions of packages lvm2 depends on:
ii  debconf                      1.4.59      Debian configuration management sy
ii  libc6                        2.3.5-8     GNU C Library: Shared libraries an
ii  libdevmapper1.01             2:1.01.04-2 The Linux Kernel Device Mapper use
ii  lvm-common                   1.5.17      The Logical Volume Manager for Lin

lvm2 recommends no packages.

-- no debconf information