kernel-packages team mailing list archive

[Pavaman Subramaniyam <pavsubra@xxxxxxxxxx>]

I have tried to upgrade the kernel by executing the below command in the
ubuntu guest:

root@ubuntu:~# apt-get dist-upgrade

Preparing to replace linux-image-3.13.0-0-generic 3.13.0-0.10+ppc64el (using .../linux-image-3.13.0-0-generic_3.13.0-0.13_ppc64el.deb) ...
Done.
Unpacking replacement linux-image-3.13.0-0-generic ...
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.13.0-0-generic /boot/vmlinux-3.13.0-0-generic
run-parts: executing /etc/kernel/postrm.d/x-grub-legacy-ec2 3.13.0-0-generic /boot/vmlinux-3.13.0-0-generic
Preparing to replace python-jsonpatch 1.3-3ubuntu1 (using .../python-jsonpatch_1.3-4_all.deb) ...
Unpacking replacement python-jsonpatch ...
Preparing to replace dh-python 1.20131021-1ubuntu6 (using .../dh-python_1.20131021-1ubuntu7_all.deb) ...
Unpacking replacement dh-python ...
Preparing to replace netbase 5.1 (using .../archives/netbase_5.2_all.deb) ...
Unpacking replacement netbase ...
Preparing to replace vim 2:7.4.052-1ubuntu2 (using .../vim_2%3a7.4.052-1ubuntu3_ppc64el.deb) ...
Unpacking replacement vim ...
Preparing to replace vim-tiny 2:7.4.052-1ubuntu2 (using .../vim-tiny_2%3a7.4.052-1ubuntu3_ppc64el.deb) ...
Unpacking replacement vim-tiny ...
Preparing to replace vim-runtime 2:7.4.052-1ubuntu2 (using .../vim-runtime_2%3a7.4.052-1ubuntu3_all.deb) ...
Unpacking replacement vim-runtime ...
Preparing to replace vim-common 2:7.4.052-1ubuntu2 (using .../vim-common_2%3a7.4.052-1ubuntu3_ppc64el.deb) ...
Unpacking replacement vim-common ...
Preparing to replace whiptail 0.52.15-2ubuntu2 (using .../whiptail_0.52.15-2ubuntu4_ppc64el.deb) ...
Unpacking replacement whiptail ...
Preparing to replace procps 1:3.3.8-2ubuntu3 (using .../procps_1%3a3.3.9-1ubuntu2_ppc64el.deb) ...
Unpacking replacement procps ...
Preparing to replace iso-codes 3.49-1 (using .../iso-codes_3.50-1_all.deb) ...
Unpacking replacement iso-codes ...
Preparing to replace python3-gdbm:ppc64el 3.3.3-1ubuntu1 (using .../python3-gdbm_3.3.3-2ubuntu1_ppc64el.deb) ...
Unpacking replacement python3-gdbm:ppc64el ...
Preparing to replace libarchive-extract-perl 0.68-1 (using .../libarchive-extract-perl_0.70-1_all.deb) ...
Unpacking replacement libarchive-extract-perl ...
Preparing to replace libterm-ui-perl 0.38-1 (using .../libterm-ui-perl_0.42-1_all.deb) ...
Unpacking replacement libterm-ui-perl ...
Preparing to replace linux-headers-3.13.0-0 3.13.0-0.10+ppc64el (using .../linux-headers-3.13.0-0_3.13.0-0.13_all.deb) ...
Unpacking replacement linux-headers-3.13.0-0 ...
Preparing to replace linux-headers-3.13.0-0-generic 3.13.0-0.10+ppc64el (using .../linux-headers-3.13.0-0-generic_3.13.0-0.13_ppc64el.deb) ...
Unpacking replacement linux-headers-3.13.0-0-generic ...
Preparing to replace linux-virtual 3.13.0.0.1+ppc64el3 (using .../linux-virtual_3.13.0.0.2_ppc64el.deb) ...
Unpacking replacement linux-virtual ...
Preparing to replace linux-image-virtual 3.13.0.0.1+ppc64el3 (using .../linux-image-virtual_3.13.0.0.2_ppc64el.deb) ...
Unpacking replacement linux-image-virtual ...
Preparing to replace linux-headers-virtual 3.13.0.0.1+ppc64el3 (using .../linux-headers-virtual_3.13.0.0.2_ppc64el.deb) ...
Unpacking replacement linux-headers-virtual ...
Preparing to replace linux-headers-generic 3.13.0.0.1+ppc64el3 (using .../linux-headers-generic_3.13.0.0.2_ppc64el.deb) ...
Unpacking replacement linux-headers-generic ...
Preparing to replace linux-libc-dev:ppc64el 3.13.0-0.10+ppc64el (using .../linux-libc-dev_3.13.0-0.13_ppc64el.deb) ...
Unpacking replacement linux-libc-dev:ppc64el ...
Preparing to replace python-gdbm 2.7.4-0ubuntu1 (using .../python-gdbm_2.7.5-1ubuntu1_ppc64el.deb) ...
Unpacking replacement python-gdbm ...
Preparing to replace python-lxml 3.2.0-1 (using .../python-lxml_3.3.0~beta2-1_ppc64el.deb) ...
Unpacking replacement python-lxml ...
Preparing to replace python-pam 0.4.2-13.1ubuntu1 (using .../python-pam_0.4.2-13.1ubuntu2_ppc64el.deb) ...
Unpacking replacement python-pam ...
Preparing to replace python-setuptools 2.0.1-1ubuntu1 (using .../python-setuptools_2.0.1-2ubuntu1_all.deb) ...
Unpacking replacement python-setuptools ...
Preparing to replace python-pkg-resources 2.0.1-1ubuntu1 (using .../python-pkg-resources_2.0.1-2ubuntu1_all.deb) ...
Unpacking replacement python-pkg-resources ...
Preparing to replace python-xapian 1.2.15-4ubuntu3 (using .../python-xapian_1.2.16-2ubuntu1_ppc64el.deb) ...
Unpacking replacement python-xapian ...
Preparing to replace python-yaml 3.10-4build2 (using .../python-yaml_3.10-4build3_ppc64el.deb) ...
Unpacking replacement python-yaml ...
Preparing to replace python3-pycurl 7.19.0-5ubuntu8 (using .../python3-pycurl_7.19.0-5ubuntu9_ppc64el.deb) ...
Unpacking replacement python3-pycurl ...
Preparing to replace unattended-upgrades 0.79.3ubuntu8 (using .../unattended-upgrades_0.81_all.deb) ...
Unpacking replacement unattended-upgrades ...
Preparing to replace w3m 0.5.3-13 (using .../w3m_0.5.3-15_ppc64el.deb) ...
Unpacking replacement w3m ...
Preparing to replace gdisk 0.8.7-1 (using .../gdisk_0.8.8-1build1_ppc64el.deb) ...
Unpacking replacement gdisk ...
Preparing to replace overlayroot 0.20ubuntu1 (using .../overlayroot_0.21ubuntu2_all.deb) ...
Unpacking replacement overlayroot ...
Preparing to replace python-pycurl 7.19.0-5ubuntu8 (using .../python-pycurl_7.19.0-5ubuntu9_ppc64el.deb) ...
Unpacking replacement python-pycurl ...
Preparing to replace python-zope.interface 4.0.5-1ubuntu2 (using .../python-zope.interface_4.0.5-1ubuntu3_ppc64el.deb) ...
Unpacking replacement python-zope.interface ...
Processing triggers for mime-support ...
Processing triggers for ureadahead ...
Setting up libfribidi0:ppc64el (0.19.6-1) ...
Setting up libnewt0.52:ppc64el (0.52.15-2ubuntu4) ...
Setting up python3-newt (0.52.15-2ubuntu4) ...
Setting up libprocps3:ppc64el (1:3.3.9-1ubuntu2) ...
Setting up libsqlite3-0:ppc64el (3.8.2-1ubuntu2) ...
Setting up libpython3.3-minimal:ppc64el (3.3.3-5ubuntu2) ...
Setting up python3.3-minimal (3.3.3-5ubuntu2) ...
Setting up libpython3.3-stdlib:ppc64el (3.3.3-5ubuntu2) ...
Setting up python3.3 (3.3.3-5ubuntu2) ...
Setting up bash-completion (1:2.1-2ubuntu1) ...
Setting up libgeoip1:ppc64el (1.6.0-1) ...
Setting up man-db (2.6.5-3) ...
Installing new version of config file /etc/cron.weekly/man-db ...
Installing new version of config file /etc/cron.daily/man-db ...
Updating database of manual pages ...
Setting up libboost-iostreams1.54.0:ppc64el (1.54.0-4ubuntu3) ...
Setting up libgmp10:ppc64el (2:5.1.3+dfsg-1ubuntu1) ...
Setting up libpcsclite1:ppc64el (1.8.10-1ubuntu1) ...
Setting up libpython2.7-minimal:ppc64el (2.7.6-4ubuntu1) ...
Setting up python2.7-minimal (2.7.6-4ubuntu1) ...
Setting up libpython2.7-stdlib:ppc64el (2.7.6-4ubuntu1) ...
Setting up python2.7 (2.7.6-4ubuntu1) ...
Setting up libpython2.7:ppc64el (2.7.6-4ubuntu1) ...
Setting up linux-image-3.13.0-0-generic (3.13.0-0.13) ...
Running depmod.
update-initramfs: deferring update (hook will be called later)
Not updating initrd symbolic links since we are being updated/reinstalled
(3.13.0-0.10+ppc64el was configured last, according to dpkg)
Not updating image symbolic links since we are being updated/reinstalled
(3.13.0-0.10+ppc64el was configured last, according to dpkg)
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 3.13.0-0-generic /boot/vmlinux-3.13.0-0-generic
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 3.13.0-0-generic /boot/vmlinux-3.13.0-0-generic
update-initramfs: Generating /boot/initrd.img-3.13.0-0-generic
run-parts: executing /etc/kernel/postinst.d/update-notifier 3.13.0-0-generic /boot/vmlinux-3.13.0-0-generic
run-parts: executing /etc/kernel/postinst.d/x-grub-legacy-ec2 3.13.0-0-generic /boot/vmlinux-3.13.0-0-generic
Searching for GRUB installation directory ... found: /boot/grub
Searching for default file ... found: /boot/grub/default
Testing for an existing GRUB menu.lst file ... found: /boot/grub/menu.lst
Searching for splash image ... none found, skipping ...
Updating /boot/grub/menu.lst ... done

Setting up python-jsonpatch (1.3-4) ...
Setting up dh-python (1.20131021-1ubuntu7) ...
Setting up netbase (5.2) ...
Installing new version of config file /etc/services ...
Setting up vim-common (2:7.4.052-1ubuntu3) ...
Setting up vim-runtime (2:7.4.052-1ubuntu3) ...
Processing /usr/share/vim/addons/doc
Setting up vim (2:7.4.052-1ubuntu3) ...
Setting up vim-tiny (2:7.4.052-1ubuntu3) ...
Setting up whiptail (0.52.15-2ubuntu4) ...
Setting up procps (1:3.3.9-1ubuntu2) ...
procps stop/waiting
Setting up iso-codes (3.50-1) ...
Setting up python3-gdbm:ppc64el (3.3.3-2ubuntu1) ...
Setting up libarchive-extract-perl (0.70-1) ...
Setting up libterm-ui-perl (0.42-1) ...
Setting up linux-headers-3.13.0-0 (3.13.0-0.13) ...
Setting up linux-headers-3.13.0-0-generic (3.13.0-0.13) ...
Setting up linux-image-virtual (3.13.0.0.2) ...
Setting up linux-headers-generic (3.13.0.0.2) ...
Setting up linux-headers-virtual (3.13.0.0.2) ...
Setting up linux-virtual (3.13.0.0.2) ...
Setting up linux-libc-dev:ppc64el (3.13.0-0.13) ...
Setting up python-gdbm (2.7.5-1ubuntu1) ...
Setting up python-lxml (3.3.0~beta2-1) ...
Setting up python-pam (0.4.2-13.1ubuntu2) ...
Setting up python-pkg-resources (2.0.1-2ubuntu1) ...
Setting up python-setuptools (2.0.1-2ubuntu1) ...
Setting up python-xapian (1.2.16-2ubuntu1) ...
Setting up python-yaml (3.10-4build3) ...
Setting up python3-pycurl (7.19.0-5ubuntu9) ...
Setting up unattended-upgrades (0.81) ...
Installing new version of config file /etc/apt/apt.conf.d/50unattended-upgrades ...
Installing new version of config file /etc/pm/sleep.d/10_unattended-upgrades-hibernate ...
Installing new version of config file /etc/init.d/unattended-upgrades ...
Setting up w3m (0.5.3-15) ...
Setting up gdisk (0.8.8-1build1) ...
Setting up overlayroot (0.21ubuntu2) ...
Setting up python-pycurl (7.19.0-5ubuntu9) ...
Setting up python-zope.interface (4.0.5-1ubuntu3) ...
Processing triggers for libc-bin ...
Processing triggers for ureadahead ...
Processing triggers for initramfs-tools ...
update-initramfs: Generating /boot/initrd.img-3.13.0-0-generic

root@ubuntu:~# ls -l /boot/
total 29648
-rw-r--r-- 1 root root   642612 Jan  2 12:12 abi-3.13.0-0-generic
-rw-r--r-- 1 root root   109588 Jan  2 12:12 config-3.13.0-0-generic
drwxr-xr-x 2 root root     4096 Jan  8 05:36 grub
-rw-r--r-- 1 root root  5685263 Jan  8 05:36 initrd.img-3.13.0-0-generic
-rw------- 1 root root  4653640 Jan  2 12:12 System.map-3.13.0-0-generic
-rw------- 1 root root 19255280 Jan  2 12:12 vmlinux-3.13.0-0-generic
root@ubuntu:~#

Even tried the below option of apt-get to install the linux-image:

root@ubuntu:~# apt-get install linux-image-*
Reading package lists... Done
Building dependency tree
Reading state information... Done
Note, selecting 'linux-image-extra-3.13.0-0-generic' for regex 'linux-image-*'
Note, selecting 'linux-image-3.13.0-0-generic' for regex 'linux-image-*'
Note, selecting 'linux-image-virtual' for regex 'linux-image-*'
Note, selecting 'linux-image-3.0' for regex 'linux-image-*'
Note, selecting 'linux-image-2.6-rt' for regex 'linux-image-*'
Note, selecting 'linux-image-generic' for regex 'linux-image-*'
Note, selecting 'linux-image-3.13.0-0-generic' instead of 'linux-image-3.0'
linux-image-virtual is already the newest version.
linux-image-3.13.0-0-generic is already the newest version.
linux-image-3.13.0-0-generic set to manually installed.
The following extra packages will be installed:
  crda iw linux-firmware wireless-regdb
The following NEW packages will be installed:
  crda iw linux-firmware linux-image-extra-3.13.0-0-generic
  linux-image-generic wireless-regdb
0 upgraded, 6 newly installed, 0 to remove and 0 not upgraded.
Need to get 35.5 MB of archives.
After this operation, 137 MB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://ports.ubuntu.com/ubuntu-ports/ trusty/main wireless-regdb all 2013.02.13-1ubuntu1 [6,456 B]
Get:2 http://ppa.launchpad.net/canonical-kernel-team/bootstrap/ubuntu/ trusty/main linux-image-extra-3.13.0-0-generic ppc64el 3.13.0-0.13 [17.3 MB]
Get:3 http://ports.ubuntu.com/ubuntu-ports/ trusty/main crda ppc64el 1.1.2-1ubuntu2 [13.1 kB]
Get:4 http://ports.ubuntu.com/ubuntu-ports/ trusty/main iw ppc64el 3.4-1 [42.8 kB]
Get:5 http://ports.ubuntu.com/ubuntu-ports/ trusty/main linux-firmware all 1.119 [18.2 MB]
Get:6 http://ppa.launchpad.net/canonical-kernel-team/bootstrap/ubuntu/ trusty/main linux-image-generic ppc64el 3.13.0.0.2 [2,318 B]
Fetched 35.5 MB in 43s (810 kB/s)
Selecting previously unselected package wireless-regdb.
(Reading database ... 65751 files and directories currently installed.)
Unpacking wireless-regdb (from .../wireless-regdb_2013.02.13-1ubuntu1_all.deb) ...
Selecting previously unselected package crda.
Unpacking crda (from .../crda_1.1.2-1ubuntu2_ppc64el.deb) ...
Selecting previously unselected package iw.
Unpacking iw (from .../archives/iw_3.4-1_ppc64el.deb) ...
Selecting previously unselected package linux-firmware.
Unpacking linux-firmware (from .../linux-firmware_1.119_all.deb) ...
Selecting previously unselected package linux-image-extra-3.13.0-0-generic.
Unpacking linux-image-extra-3.13.0-0-generic (from .../linux-image-extra-3.13.0-0-generic_3.13.0-0.13_ppc64el.deb) ...
Selecting previously unselected package linux-image-generic.
Unpacking linux-image-generic (from .../linux-image-generic_3.13.0.0.2_ppc64el.deb) ...
Processing triggers for man-db ...
Setting up wireless-regdb (2013.02.13-1ubuntu1) ...
Setting up crda (1.1.2-1ubuntu2) ...
Setting up iw (3.4-1) ...
Setting up linux-firmware (1.119) ...
Setting up linux-image-extra-3.13.0-0-generic (3.13.0-0.13) ...
Running depmod.
update-initramfs: deferring update (hook will be called later)
initrd.img(/boot/initrd.img-3.13.0-0-generic
) points to /boot/initrd.img-3.13.0-0-generic
 (/boot/initrd.img-3.13.0-0-generic) -- doing nothing at /var/lib/dpkg/info/linux-image-extra-3.13.0-0-generic.postinst line 491.
vmlinux(/boot/vmlinux-3.13.0-0-generic
) points to /boot/vmlinux-3.13.0-0-generic
 (/boot/vmlinux-3.13.0-0-generic) -- doing nothing at /var/lib/dpkg/info/linux-image-extra-3.13.0-0-generic.postinst line 491.
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 3.13.0-0-generic /boot/vmlinux-3.13.0-0-generic
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 3.13.0-0-generic /boot/vmlinux-3.13.0-0-generic
update-initramfs: Generating /boot/initrd.img-3.13.0-0-generic
run-parts: executing /etc/kernel/postinst.d/update-notifier 3.13.0-0-generic /boot/vmlinux-3.13.0-0-generic
run-parts: executing /etc/kernel/postinst.d/x-grub-legacy-ec2 3.13.0-0-generic /boot/vmlinux-3.13.0-0-generic
Searching for GRUB installation directory ... found: /boot/grub
Searching for default file ... found: /boot/grub/default
Testing for an existing GRUB menu.lst file ... found: /boot/grub/menu.lst
Searching for splash image ... none found, skipping ...
Updating /boot/grub/menu.lst ... done

Setting up linux-image-generic (3.13.0.0.2) ...


But still the vmlinux kernel image shown is of version 3.13.0-0 only and not installing 3.13.0-0.15 kernel vmlinux image.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1265722

Title:
  ppc64el: 14.04 alpha 1 build has call traces -- ERROR: Bad
  of_node_put() on /pci@800000020000000

Status in “linux” package in Ubuntu:
  Fix Committed

Bug description:
  Install Ubuntu ppc64el guest image on Power 8 machine using kvm
  invocation.

  [root@lep8a Ubuntu_alpha1]# qemu-system-ppc64 -enable-kvm -M pseries
  -cpu POWER8 -smp cores=4,threads=1 -m 70G -nographic -append
  "earlyprintk root=/dev/sda console=hvc0 --no-sessions" -kernel trusty-
  server-cloudimg-ppc64el-vmlinuz-generic -device spapr-vscsi -drive
  file=trusty-server-cloudimg-ppc64el.img.qcow2 -net nic,model=e1000
  -net tap,ifname=tap0,script=qemu-ifup,downscript=no

  Ubuntu Trusty Tahr (development branch) ubuntu hvc0

  ubuntu login: ubuntu
  Password:
  Last login: Tue Dec 24 18:09:11 UTC 2013 on hvc0
  Welcome to Ubuntu Trusty Tahr (development branch) (GNU/Linux 3.13.0-0-generic ppc64le)

   * Documentation:  https://help.ubuntu.com/

    System information as of Tue Dec 24 18:09:11 UTC 2013

    System load:  0.0               Processes:           86
    Usage of /:   1.4% of 49.18GB   Users logged in:     0
    Memory usage: 0%                IP address for eth0: 9.3.189.185
    Swap usage:   0%

    Graph this data and manage this system at:
      https://landscape.canonical.com/

    Get cloud support with Ubuntu Advantage Cloud Guest:
      http://www.ubuntu.com/business/services/cloud

  0 packages can be updated.
  0 updates are security updates.

  ubuntu@ubuntu:~$ dmesg | more

  IOMMU table initialized, virtual merging enabled
  ERROR: Bad of_node_put() on /pci@800000020000000
  CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.13.0-0-generic #10+ppc64el-Ubuntu
  Call Trace:
  [c00000117118b570] [c00000000001553c] .show_stack+0x7c/0x1f0 (unreliable)
  [c00000117118b640] [c0000000009fc480] .dump_stack+0x88/0xb4
  [c00000117118b6c0] [c000000000854818] .of_node_release+0xd8/0xf0
  [c00000117118b750] [c00000000085a2fc] .of_irq_parse_one+0x13c/0x1f0
  [c00000117118b800] [c00000000085b42c] .of_irq_parse_pci+0x3c/0x1d0
  [c00000117118b8a0] [c00000000003abbc] .pcibios_setup_device+0x8c/0x190
  [c00000117118b970] [c00000000003bfa0] .pcibios_setup_bus_devices+0x50/0x80
  [c00000117118b9f0] [c00000000003d4a4] .__of_scan_bus+0x114/0x1b0
  [c00000117118baa0] [c00000000003ca1c] .pcibios_scan_phb+0x27c/0x2f0
  [c00000117118bb60] [c000000000e1f2c4] .pcibios_init+0x80/0xd8
  [c00000117118bbf0] [c00000000000bf84] .do_one_initcall+0x154/0x1b0
  [c00000117118bce0] [c000000000e14e30] .kernel_init_freeable+0x25c/0x33c
  [c00000117118bdb0] [c00000000000c73c] .kernel_init+0x1c/0x160
  [c00000117118be30] [c00000000000a160] .ret_from_kernel_thread+0x5c/0x7c
  PCI: Probing PCI hardware done

  The above call trace is got in the dmesg output.

  
  ubuntu@ubuntu:~$ dpkg --list | grep kernel
  ii  kmod                             15-0ubuntu5                      ppc64el      tools for managing Linux kernel modules
  ii  libdrm2:ppc64el                  2.4.50-1                         ppc64el      Userspace interface to kernel DRM services -- runtime
  ii  linux-headers-3.13.0-0           3.13.0-0.10+ppc64el              all          Header files related to Linux kernel version 3.13.0
  ii  linux-headers-3.13.0-0-generic   3.13.0-0.10+ppc64el              ppc64el      Linux kernel headers for version 3.13.0 on PowerPC 64el SMP
  ii  linux-headers-generic            3.13.0.0.1+ppc64el3              ppc64el      Generic Linux kernel headers
  ii  linux-image-3.13.0-0-generic     3.13.0-0.10+ppc64el              ppc64el      Linux kernel image for version 3.13.0 on PowerPC 64el SMP
  ii  linux-image-virtual              3.13.0.0.1+ppc64el3              ppc64el      This package will always depend on the latest minimal generic kernel image.
  ii  linux-virtual                    3.13.0.0.1+ppc64el3              ppc64el      Minimal Generic Linux kernel and headers
  ii  rsyslog                          7.4.4-1ubuntu2                   ppc64el      reliable system and kernel logging daemon

  ubuntu@ubuntu:~$ uname -a
  Linux ubuntu 3.13.0-0-generic #10+ppc64el-Ubuntu SMP Tue Dec 24 10:56:51 UTC 2013 ppc64le ppc64le ppc64le GNU/Linux
  ubuntu@ubuntu:~$ lsb_release -rd
  Description:    Ubuntu Trusty Tahr (development branch)
  Release:        14.04

  ubuntu@ubuntu:~$ apt-cache policy pkgname
  N: Unable to locate package pkgname

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