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------- Comment From mauricfo@xxxxxxxxxx 2015-04-14 13:29 EDT-------
>From the logs, update-grub seems finished.
Question is: is anything done later, to create that apparently hang scenario?

...
Setting up kexec-tools (1:2.0.7-5ubuntu2) ...
...
Generating grub configuration file ...
...
done

<STUCK>

Checking in binary package..
Ah, yes - there are more things done after update-grub ('Automatically added' snippets).

# apt-get download kexec-tools
# dpkg-deb -e kexec-tools_1%3a2.0.7-5ubuntu2_ppc64el.deb bin-pkg

# cat bin-pkg/postinst
...

# ------------------------- Debconf questions end ---------------------

# no triggers in grub2,
#  see http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=481542
if [ -x /usr/sbin/update-grub ] && [ -e /boot/grub/grub.cfg ]; then
update-grub
fi

# Automatically added by dh_installinit
if [ -x "/etc/init.d/kexec" ]; then
update-rc.d kexec defaults >/dev/null
fi
if [ -x "/etc/init.d/kexec" ] || [ -e "/etc/init/kexec.conf" ]; then
invoke-rc.d kexec start || exit $?
fi
# End automatically added section
# Automatically added by dh_installinit
if [ -x "/etc/init.d/kexec-load" ]; then
update-rc.d kexec-load defaults >/dev/null
fi
if [ -x "/etc/init.d/kexec-load" ] || [ -e "/etc/init/kexec-load.conf" ]; then
invoke-rc.d kexec-load start || exit $?
fi
# End automatically added section

exit 0

You can try reproducing them by hand, and see if any does hang.

** Bug watch added: Debian Bug tracker #481542
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=481542

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https://bugs.launchpad.net/bugs/1434023

Title:
  ISST-LTE:Ubuntu15.04:20150318:kdump: linux-crashdump packages install
  using apt-get will stuck

Status in linux package in Ubuntu:
  New

Bug description:
  == Comment: #0 - Hemant Kumar <hemantkbajaj@xxxxxxxxxx> - 2015-03-19 04:25:43 ==
  Defect Description:
  -----------------------

  I have installed ubuntu15.04 daily build (20150318). After installation i tried installing kdump package "linux-crashdump" using apt-get.
  "apt-get install linux-crashdump" 

  And after package installation it will stuck and will not give prompt.
  here is output:

  root@highlp2:/home/hemant# apt-get install linux-crashdump
  Reading package lists... Done
  Building dependency tree
  Reading state information... Done
  The following extra packages will be installed:
    apport apport-symptoms binutils crash kdump-tools kexec-tools libdw1
    libpolkit-agent-1-0 libpolkit-backend-1-0 makedumpfile policykit-1
    python3-apport python3-problem-report
  Suggested packages:
    apport-gtk apport-kde binutils-doc python3-launchpadlib
  The following NEW packages will be installed:
    apport apport-symptoms binutils crash kdump-tools kexec-tools libdw1
    libpolkit-agent-1-0 libpolkit-backend-1-0 linux-crashdump makedumpfile
    policykit-1 python3-apport python3-problem-report
  0 upgraded, 14 newly installed, 0 to remove and 0 not upgraded.
  Need to get 5,514 kB of archives.
  After this operation, 30.5 MB of additional disk space will be used.
  Do you want to continue? [Y/n] y
  Get:1 http://ports.ubuntu.com/ubuntu-ports/ vivid/main libdw1 ppc64el 0.160-0ubuntu3 [161 kB]
  Get:2 http://ports.ubuntu.com/ubuntu-ports/ vivid/main libpolkit-agent-1-0 ppc64el 0.105-8ubuntu2 [14.6 kB]
  Get:3 http://ports.ubuntu.com/ubuntu-ports/ vivid/main libpolkit-backend-1-0 ppc64el 0.105-8ubuntu2 [33.5 kB]
  Get:4 http://ports.ubuntu.com/ubuntu-ports/ vivid/main python3-problem-report all 2.16.2-0ubuntu3 [10.2 kB]
  Get:5 http://ports.ubuntu.com/ubuntu-ports/ vivid/main python3-apport all 2.16.2-0ubuntu3 [75.8 kB]
  Get:6 http://ports.ubuntu.com/ubuntu-ports/ vivid/main apport all 2.16.2-0ubuntu3 [113 kB]
  Get:7 http://ports.ubuntu.com/ubuntu-ports/ vivid/main apport-symptoms all 0.20 [14.2 kB]
  Get:8 http://ports.ubuntu.com/ubuntu-ports/ vivid/main binutils ppc64el 2.25-5ubuntu1 [2,184 kB]
  Get:9 http://ports.ubuntu.com/ubuntu-ports/ vivid/main crash ppc64el 7.0.8-1ubuntu1 [2,664 kB]
  Get:10 http://ports.ubuntu.com/ubuntu-ports/ vivid/main makedumpfile ppc64el 1:1.5.7-5 [99.8 kB]
  Get:11 http://ports.ubuntu.com/ubuntu-ports/ vivid/main kexec-tools ppc64el 1:2.0.7-5ubuntu2 [73.8 kB]
  Get:12 http://ports.ubuntu.com/ubuntu-ports/ vivid/main kdump-tools all 1:1.5.7-5 [16.2 kB]
  Get:13 http://ports.ubuntu.com/ubuntu-ports/ vivid/main linux-crashdump ppc64el 3.19.0.9.8 [2,550 B]
  Get:14 http://ports.ubuntu.com/ubuntu-ports/ vivid/main policykit-1 ppc64el 0.105-8ubuntu2 [50.7 kB]
  Fetched 5,514 kB in 0s (31.4 MB/s)
  Preconfiguring packages ...

  Package configuration

  
   ?????????????????????????? Configuring kexec-tools ??????????????????????????
   ?                                                                           ?
   ? If you choose this option, a system reboot will trigger a restart into a  ?
   ? kernel loaded by kexec instead of going through the full system boot      ?
   ? loader process.                                                           ?
   ?                                                                           ?
   ? Should kexec-tools handle reboots?                                        ?
   ?                                                                           ?
   ?                    <Yes>                       <No>                       ?
   ?                                                                           ?
   ?????????????????????????????????????????????????????????????????????????????

  Selecting previously unselected package libdw1:ppc64el.
  (Reading database ... 48391 files and directories currently installed.)
  Preparing to unpack .../libdw1_0.160-0ubuntu3_ppc64el.deb ...
  Unpacking libdw1:ppc64el (0.160-0ubuntu3) ...
  [   81.163819] sda2: WRITE SAME failed. Manually zeroing.
  Selecting previously unselected package libpolkit-agent-1-0:ppc64el.
  Preparing to unpack .../libpolkit-agent-1-0_0.105-8ubuntu2_ppc64el.deb ...
  Unpacking libpolkit-agent-1-0:ppc64el (0.105-8ubuntu2) ...
  Selecting previously unselected package libpolkit-backend-1-0:ppc64el.
  Preparing to unpack .../libpolkit-backend-1-0_0.105-8ubuntu2_ppc64el.deb ...
  Unpacking libpolkit-backend-1-0:ppc64el (0.105-8ubuntu2) ...
  Selecting previously unselected package python3-problem-report.
  Preparing to unpack .../python3-problem-report_2.16.2-0ubuntu3_all.deb ...
  Unpacking python3-problem-report (2.16.2-0ubuntu3) ...
  Selecting previously unselected package python3-apport.
  Preparing to unpack .../python3-apport_2.16.2-0ubuntu3_all.deb ...
  Unpacking python3-apport (2.16.2-0ubuntu3) ...
  Selecting previously unselected package apport.
  Preparing to unpack .../apport_2.16.2-0ubuntu3_all.deb ...
  Unpacking apport (2.16.2-0ubuntu3) ...
  Selecting previously unselected package apport-symptoms.
  Preparing to unpack .../apport-symptoms_0.20_all.deb ...
  Unpacking apport-symptoms (0.20) ...
  Selecting previously unselected package binutils.
  Preparing to unpack .../binutils_2.25-5ubuntu1_ppc64el.deb ...
  Unpacking binutils (2.25-5ubuntu1) ...
  Selecting previously unselected package crash.
  Preparing to unpack .../crash_7.0.8-1ubuntu1_ppc64el.deb ...
  Unpacking crash (7.0.8-1ubuntu1) ...
  Selecting previously unselected package makedumpfile.
  Preparing to unpack .../makedumpfile_1%3a1.5.7-5_ppc64el.deb ...
  Unpacking makedumpfile (1:1.5.7-5) ...
  Selecting previously unselected package kexec-tools.
  Preparing to unpack .../kexec-tools_1%3a2.0.7-5ubuntu2_ppc64el.deb ...
  Unpacking kexec-tools (1:2.0.7-5ubuntu2) ...
  Selecting previously unselected package kdump-tools.
  Preparing to unpack .../kdump-tools_1%3a1.5.7-5_all.deb ...
  Unpacking kdump-tools (1:1.5.7-5) ...
  Selecting previously unselected package linux-crashdump.
  Preparing to unpack .../linux-crashdump_3.19.0.9.8_ppc64el.deb ...
  Unpacking linux-crashdump (3.19.0.9.8) ...
  Selecting previously unselected package policykit-1.
  Preparing to unpack .../policykit-1_0.105-8ubuntu2_ppc64el.deb ...
  Unpacking policykit-1 (0.105-8ubuntu2) ...
  Processing triggers for shared-mime-info (1.3-1) ...
  Processing triggers for man-db (2.7.0.2-5) ...
  Processing triggers for ureadahead (0.100.0-19) ...
  ureadahead will be reprofiled on next reboot
  Processing triggers for dbus (1.8.12-1ubuntu3) ...
  Setting up libdw1:ppc64el (0.160-0ubuntu3) ...
  Setting up libpolkit-agent-1-0:ppc64el (0.105-8ubuntu2) ...
  Setting up libpolkit-backend-1-0:ppc64el (0.105-8ubuntu2) ...
  Setting up python3-problem-report (2.16.2-0ubuntu3) ...
  Setting up python3-apport (2.16.2-0ubuntu3) ...
  Setting up apport (2.16.2-0ubuntu3) ...
  Error getting authority: Error initializing authority: Error calling StartServiceByName for org.freedesktop.PolicyKit1: GDBus.Error:org.freedesktop.DBus.Error.TimedOut: Activation of org.freedesktop.PolicyKit1 timed out (g-dbus-error-quark, 20)
  Failed to execute operation: Connection timed out
  invoke-rc.d: apport.service doesn't exist but the upstart job does. Nothing to start or stop until a systemd or init job is present.
  Setting up apport-symptoms (0.20) ...
  Setting up binutils (2.25-5ubuntu1) ...
  Setting up crash (7.0.8-1ubuntu1) ...
  Setting up makedumpfile (1:1.5.7-5) ...
  Setting up kexec-tools (1:2.0.7-5ubuntu2) ...
  Generating /etc/default/kexec...
  Generating grub configuration file ...
  Found linux image: /boot/vmlinux-3.19.0-9-generic
  Found initrd image: /boot/initrd.img-3.19.0-9-generic
  [  129.359839] EXT4-fs (sda1): VFS: Can't find ext4 filesystem
  [  129.361219] EXT4-fs (sda1): VFS: Can't find ext4 filesystem
  [  129.362597] EXT4-fs (sda1): VFS: Can't find ext4 filesystem
  [  129.363956] FAT-fs (sda1): bogus number of reserved sectors
  [  129.436838] FAT-fs (sda1): bogus number of reserved sectors
  [  129.452912] qnx4: no qnx4 filesystem (no root dir).
  [  129.454004] ufs: You didn't specify the type of your ufs filesystem
  [  129.454004]
  [  129.454004] mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...
  [  129.454004]
  [  129.454004] >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old
  [  129.454476] ufs: ufs_fill_super(): bad magic number
  [  129.560607] EXT4-fs (sdb1): VFS: Can't find ext4 filesystem
  [  129.562540] EXT4-fs (sdb1): VFS: Can't find ext4 filesystem
  [  129.564323] EXT4-fs (sdb1): VFS: Can't find ext4 filesystem
  [  129.566828] FAT-fs (sdb1): bogus number of reserved sectors
  [  129.588732] FAT-fs (sdb1): bogus number of reserved sectors
  [  129.604172] qnx4: no qnx4 filesystem (no root dir).
  [  129.605263] ufs: You didn't specify the type of your ufs filesystem
  [  129.605263]
  [  129.605263] mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...
  [  129.605263]
  [  129.605263] >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old
  [  129.609651] ufs: ufs_fill_super(): bad magic number
  [  132.504360] EXT4-fs (sdg1): VFS: Can't find ext4 filesystem
  [  132.512102] EXT4-fs (sdg1): VFS: Can't find ext4 filesystem
  [  132.517429] EXT4-fs (sdg1): VFS: Can't find ext4 filesystem
  [  132.525346] FAT-fs (sdg1): bogus number of reserved sectors
  [  132.568984] FAT-fs (sdg1): bogus number of reserved sectors
  [  132.671699] qnx4: no qnx4 filesystem (no root dir).
  [  132.672869] ufs: You didn't specify the type of your ufs filesystem
  [  132.672869]
  [  132.672869] mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...
  [  132.672869]
  [  132.672869] >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old
  [  132.694344] ufs: ufs_fill_super(): bad magic number
  [  144.620556] EXT4-fs (sdl1): VFS: Can't find ext4 filesystem
  [  144.655644] EXT4-fs (sdl1): VFS: Can't find ext4 filesystem
  [  144.674704] EXT4-fs (sdl1): VFS: Can't find ext4 filesystem
  [  144.685403] FAT-fs (sdl1): bogus number of reserved sectors
  [  144.735992] FAT-fs (sdl1): bogus number of reserved sectors
  [  144.775409] qnx4: no qnx4 filesystem (no root dir).
  [  144.776813] ufs: You didn't specify the type of your ufs filesystem
  [  144.776813]
  [  144.776813] mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...
  [  144.776813]
  [  144.776813] >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old
  [  144.794942] ufs: ufs_fill_super(): bad magic number
  [  157.803938] EXT4-fs (sdq1): VFS: Can't find ext4 filesystem
  [  157.809537] EXT4-fs (sdq1): VFS: Can't find ext4 filesystem
  [  157.811758] EXT4-fs (sdq1): VFS: Can't find ext4 filesystem
  [  157.814393] FAT-fs (sdq1): bogus number of reserved sectors
  [  157.832624] FAT-fs (sdq1): bogus number of reserved sectors
  [  157.861850] qnx4: no qnx4 filesystem (no root dir).
  [  157.862890] ufs: You didn't specify the type of your ufs filesystem
  [  157.862890]
  [  157.862890] mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...
  [  157.862890]
  [  157.862890] >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old
  [  157.870722] ufs: ufs_fill_super(): bad magic number
  Found Ubuntu Vivid Vervet (development branch) (15.04) on /dev/sdb2
  Found Ubuntu Vivid Vervet (development branch) (15.04) on /dev/sdg2
  Found Ubuntu Vivid Vervet (development branch) (15.04) on /dev/sdl2
  Found Ubuntu Vivid Vervet (development branch) (15.04) on /dev/sdq2
  done

  
  --------- IT WILL STUCK HERE-----------

  I waited around 30 min but it will be stuck here only.
  To get the prompt(console) back we need to reboot the lpar. 

  After reboot i tried installing kdump package again and i saw this:

  root@highlp2:~# apt-get install linux-crashdump
  E: dpkg was interrupted, you must manually run 'dpkg --configure -a' to correct the problem.
  root@highlp2:~#

  I did "dpkg --configure -a" here and tried installing kdump package
  (linux-crashdump) and it says package is already installed.

  I checked kdump service here and it says kdump is active:

  root@highlp2:~# /etc/init.d/kdump-tools status
  ? kdump-tools.service - Kernel crash dump capture service
     Loaded: loaded (/lib/systemd/system/kdump-tools.service; enabled; vendor preset: enabled)
     Active: active (exited) since Thu 2015-03-19 03:31:20 EDT; 47s ago
    Process: 9956 ExecStart=/etc/init.d/kdump-tools start (code=exited, status=0/SUCCESS)
   Main PID: 9956 (code=exited, status=0/SUCCESS)

  Mar 19 03:31:20 highlp2 systemd[1]: Starting Kernel crash dump capture serv.....
  Mar 19 03:31:20 highlp2 systemd[1]: Started Kernel crash dump capture service.
  Hint: Some lines were ellipsized, use -l to show in full.
  root@highlp2:~#

  
  root@highlp2:~# uname -a
  Linux highlp2 3.19.0-9-generic #9-Ubuntu SMP Wed Mar 11 17:50:43 UTC 2015 ppc64le ppc64le ppc64le GNU/Linux
  root@highlp2:~#

  
  I have tried installing another ubuntu15.04 lpar with cdrom as well but everytime kdump package installation will get stuck here and we need a reboot after this.

  
  Steps to recreate:

  1> Install ubuntu15.04 lpar
  2> login to lpar as root
  3> apt-get install linux-crashdump

  
  contact info: hemantkbajaj@xxxxxxxxxx

  == Comment: #1 - Hemant Kumar <hemantkbajaj@xxxxxxxxxx> - 2015-03-19 04:31:10 ==
  After reboot i got /var/log/syslogs from lpar.

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