Bug#341452: lvm2: v2.02.00-1: breaks VGs: "device-mapper ioctl cmd 9 failed: Invalid argument"

[Wolfgang Weisselberg]

Package: lvm2
Version: 2.02.00-1
Severity: critical
Justification: breaks the whole system

Problem description:
-------------------
After upgrading to lvm2 2.02.00-1 and the required
libdevmapper1.02, the system was unable to complete booting,
as no LVs were reachable: the system was unusable and could not
be used to fix itself.
(The metadata is in lvm2 format.)


vgscan worked OK.
vgchange -a y was broken, spewing lots of:
    device-mapper: one of name or uuid must be supplied, cmd(9)
      device-mapper ioctl cmd 9 failed: Invalid argument
and finally claiming
     18 logical volume(s) in volume group "base_vg" now active 
However, they were not accessible and the boot process was
unable to finish.

vgchange -a n also failed: 
    device-mapper: one of name or uuid must be supplied, cmd(11)
      device-mapper ioctl cmd 11 failed: Invalid argument
      _deps: task run failed for (254:0)
      Failed to add device (254:0) to dtree
    device-mapper: one of name or uuid must be supplied, cmd(11)
      device-mapper ioctl cmd 11 failed: Invalid argument
      _deps: task run failed for (254:1)
      Failed to add device (254:1) to dtree
    ...

dmsetup ls was OK.
dmsetup table showed only:
    base_vg-usr:
    base_vg-var:
    ...
i.e. the names were known, but the tables were missing.



Solution:
--------
After downgrading to lvm2 2.01.14-3 (and thus libdevmapper1.02)
the system worked again.  

To archive this, a rescue system was needed, as /usr/ (apt-get)
and /var/ (apt/sources.list) etc. were all unreachable.



Note: 
----
I am not 100% sure if it is libdevmapper1.02 or lvm2, however,
lvm2 Version 2.01.14-3 works with:
    rm /lib/libdevmapper.so.1.01
    ln -s /lib/libdevmapper.so.1.02 /lib/libdevmapper.so.1.01
Thus the problem probably is within lvm2 v2.02.00-1.


PS: please CC me.


-- System Information:
Debian Release: testing/unstable
  APT prefers oldstable
  APT policy: (500, 'oldstable'), (500, 'unstable'), (500, 'testing')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.4.27-2-k7
Locale: LANG=de_DE at euro, LC_CTYPE=de_DE at euro (charmap=ISO-8859-15)

[NOTE: bug report created with lvm2 v2.01.14-3!]
Versions of packages lvm2 depends on:
ii  debconf [debconf-2.0]        1.4.59      Debian configuration management sy
ii  libc6                        2.3.5-8.1   GNU C Library: Shared libraries an
ii  libdevmapper1.01             2:1.01.05-1 The Linux Kernel Device Mapper use
ii  libncurses5                  5.5-1       Shared libraries for terminal hand
ii  libreadline5                 5.0-11      GNU readline and history libraries
ii  libselinux1                  1.26-1      SELinux shared libraries
ii  lvm-common                   1.5.20      The Logical Volume Manager for Lin

lvm2 recommends no packages.

-- debconf information:
  lvm2/snapshots: