saucy server lvm installations fail to boot

[Para Siva]

The lvm installations of amd64 and i386 images fail to boot and drop to initramfs shell with the following error messages with the images of 20130803 onwords:

Alert: /dev/mapper/utah--12256--saucy--server--i386--vg--root does not exist. Dropping to shell.

When compared to the earlier good images, i noticed libdevmapper-event is not getting installed in the failed ones as part of lvm2 dependency. Install log is attached from a failed installation.

Steps to reproduce:
1. Install utah using
   sudo apt-add-repository -y ppa:utah/stable
   sudo apt-get update
   sudo apt-get install utah

2. Now run
sudo -u utah -i run_utah_tests.py -i /path/to/saucy-server-amd64.iso -p lp:ubuntu-test-cases/server/preseeds/lvm.preseed lp:ubuntu-test-cases/server/runlists/lvm.run -x /etc/utah/bridged-network-vm.xml

3. It could be noted that the vm will fail to boot after the installation.

The impacted smoke tests are:
https://jenkins.qa.ubuntu.com/view/Saucy/view/Smoke%20Testing/job/saucy-server-amd64-smoke-lvm/91/
https://jenkins.qa.ubuntu.com/view/Saucy/view/Smoke%20Testing/job/saucy-server-amd64-smoke-multi-lvm/91/
https://jenkins.qa.ubuntu.com/view/Saucy/view/Smoke%20Testing/job/saucy-server-i386-smoke-lvm/89/
https://jenkins.qa.ubuntu.com/view/Saucy/view/Smoke%20Testing/job/saucy-server-i386-smoke-multi-lvm/87/

[Glenn Aaldering (glennaaldering)]

Thanks for this bug report.

I can confirm that the lvm installation of saucy64 can be fixed by booting a rescue cd and installing lvm2/libdevmapper-event1.02.1 by hand.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Andy Whitcroft (apw)]

This is very confusing because lvm2 directly depends on that library. So if you have lvm2 installed you really should have libdevmapper-event1.02.1 installed:

    $ apt-cache show lvm2 | grep Depends
    Depends: libc6 (>= 2.14), libdevmapper-event1.02.1 (>= 2:1.02.74), libdevmapper1.02.1 (>= 2:1.02.77),
       libreadline5 (>= 5.2), libudev1 (>= 183), lsb-base, dmsetup (>> 2:1.02.47), initscripts (>= 2.88dsf-13.3), watershed (>= 2)

Can we get the installer logs from this install please.

[Andy Whitcroft (apw)]

After much debugging we have determined that this is due to lack of executable bits on the partman-lvm finish.d hook. Fix uploaded to debian.

[Dimitri John Ledkov (xnox)]

partman-lvm 86 is uploaded in debian, synced in debian and present on the 20130808 server image. Can you please retest, and let us know if it fixes the issue?

[Para Siva (psivaa)]

20130808 images do not have this issue, the installations succeed and the tests pass. Thanks for the fix.