How to check kernel "livepatch" version?


Regarding LSN-0037-1, posted to ubuntu-security last week: how does one
verify that they are running a properly patched kernel? All of my apt-based
tools refer to the kernel version as, for example,, but the
security announcement refers to a "livepatch version" ...

Workspaces on 18.04 LTS


In 16.04 I had a 2x2 matrix of 4 workspaces and it was really useful.

In 18.04 I now have a 3x1 matrix of 3 workspaces and it isn't as good. Is
there a way to adjust this to behave like 16.04?

Oh, and I'm going to file a bug report re: 18.04's handling of my HP
LaserJet printer.



Update to python3.6 breaks pip

This happened to me on a system running Mint 18. I received an update to
python 3.6 the other day.

CD wont play properly

My wife got me a few movies from Netfilx. They play fine.
Then she got me a tv series that Im watching - you can only
hear thebackground music and sound effects. You can just
barely hear the dialog. I use VLC though Ive tried a few others.
They play on VLC on my wifes Windows computer (unfortunately).
Any suggestions to things I can try?


Window Share Problem

Hi All,

I mounted a windows share using

// /media/ezproxy cifs credentials=/root/yyy,iocharset=utf8,sec=ntlm 0 0

in /etc/fstab/

I works well, I can read the files in media/ezproxy.

There is no process running on this share, I am not reading or writing any data there.

Now, after a while the server the simply breaks down because of too much memory and cpu usage. I am definitely sure it is only this mount crashing the server.

I am running a 16.04 LTS Ubuntu Server on a hyper-v VM, which I upgraded from 14.04 LTS.

Does anyone have any idea what the reason may be?


I am running MINT 18.3 on an AMD 64 bit processor. I want to control
and read data from my Siglent Spectrun Analyzer with my computer through
its USB port. How do I accomplish this with the C program language? I
have googled for an answer but haven't found an answer that I
understand. Is there a 'usb-open' function that will allow use of the
traditional character and string functions?

Thanks for any suggestions.


Default position of document icons on screen


I would like to change the default position on the screen of new
documents or downloaded documents (Ubuntu 18.04), which at present is
the top left-hand corner. Is there any way of doing this?

Many thanks.

Gesendet von Mail für Windows 10

ubiquity migrated to git

$ git clone lp:ubiquity
$ git push lp:~user/ubiquity

is all you need to know if you already have the git lp: url setup in
your ~/.gitconfig
[url "git+ssh:// ... at git dot"]
insteadof = lp:

(See <a href="" title=""></a> for more details)

lp:ubiquity is owned by ~ubuntu-installer team, and thus access rights
should be same as the bzr branches.

This repository has most of the tags, and currently has three branches:
* xenial
* bionic
* master

I expect master branch to be used for the currently-in-development
release, and branches created on the as-needed basis for

Protecting a file from accidentally being sent.


I regularly apply for jobs, and regularly see where the advertiser asks for
a CV in the form of a file, does not place a restriction on the type of
file it is asking for. The file selection window opens, and I can select
any file from my desktop (the place where I keep my CV as well as other
files - ones I definitely don't want to send).

i don't think I have ever sent a file I definitely don't want to send, but
sometimes I have had to catch myself before I did.

ThreadStack Project: a new innovative open source software for multi-thread computing

I have developed a new open source software as a result of a scientific
research and I want to share my study with scientists and/or software

ThreadStack is an innovative software which produces a class library for
C++ multi-thread programming and the outcome of the ThreadStack acts as an
autonomous management system for the thread synchronization tasks.
ThreadStack has a nice and useful graphical user interface and includes a
short tutorial and code examples.

ThreadStack Project: a new innovative open source software for multi-thread computing

I have developed a new open source software as a result of a scientific
research and I want to share my study with scientists and/or software

ThreadStack is an innovative software which produces a class library for
C++ multi-thread programming and the outcome of the ThreadStack acts as an
autonomous management system for the thread synchronization tasks.
ThreadStack has a nice and useful graphical user interface and includes a
short tutorial and code examples.

Announce: docker-buildpackage

Hi folks,

I've written a tool for isolated deb builds in docker containers.
It's a little bit like pbuilder, but using docker for isolation.

<a href="" title=""></a>

Everything written in shellscript, simple config as sh includes.
Not debianized yet, as it might require some local customizations.
(planned for future releases)

I'm also hacking on another tool which automatically clones repos
and calls dck-buildpackage for building whole pipelines - but that's
still experimental and hackish:

<a href="" title=""></a>


Generating a new ubuntu-keyring .deb to sign CD


Trying to follow this guide to create a custom 16.04 install CD:
<a href="" title=""></a>

When trying to generate a new ubuntu-keyring, I keep running into this
dpkg-buildpackage -rfakeroot -m"Name <email>" -kA5E86765
dpkg-buildpackage: source package ubuntu-keyring
dpkg-buildpackage: source version 2012.05.19-1
dpkg-buildpackage: source distribution unstable
dpkg-buildpackage: host architecture amd64
dpkg-source --before-build ubuntu-keyring-2012.05.19
fakeroot debian/rules clean
dh clean

18.04 networking

I'm installing 18.04 on a server and added a static ip to the file
/etc/network/interfaces. It works and uses the address I assigned, but
its not respecting the 'dns-nameserver' line, and the system cant reach
the web.

has the dns-nameserver directive changed now?

Blatant self-plug, and a question

Because I thought it might be of some interest...

After my rant about GNOME made it onto HackerNews, I've written a brief
follow-up with a few tweaks that IMHO make the new GNOME-based 18.04 a bit
more bearable.

<a href="" title=""></a>

Is there any progress on an unofficial Unity remix? The only one I can find
for 18.04 hasn't updated since February.

I'm considering rolling my own.

On which note, is there any way to upgrade an existing 16.04 install and
*not* get GNOME?

apt-get not updating GUI packages?


I run Ubuntu 16.04 as a Dovecot mailserver and to keep the system
patched am religiously using ssh to sign into the machine and run both
of the following commands:
$ sudo apt-get update
$ sudo apt-get upgrade with an occasional $ sudo apt autoremove

On both previous incidents where I was told after signing in that there
were updates available, I ran the above commands.
Afterwards I reboot the machine using sudo and then sign-in again via
SSH to check if more updates are available.

Below is a screen paste
Welcome to Ubuntu 16.04.4 LTS (GNU/Linux 4.4.0-121-generic x86_64)


Long pause duign apt updates

Why is there always a loooooong pause (at leasta minute, maybe more) at
THIS exact stage of any apt or apt-get upgrade:

Processing triggers for shared-mime-info (1.5-2ubuntu0.1) ...
Unknown media type in type 'all/all'
Unknown media type in type 'all/allfiles'

Is there something going on that need fixing? This has been happening on
everything from 16.04 onwards, and it happens on Ubuntu-based systems
like Mint as well.


Really strange glitch with Ubuntu 16.04.4 LTS 64-bit


I hope this is the right place for this kind of message. If it isn't, I
apologise and ask you to direct me to the appropriate mailing list.

I'm running it on a lenovo ThinkPad T420 laptop and have been for years.

Kernel info: Linux turing 4.4.0-121-generic #145-Ubuntu SMP Fri Apr 13
13:47:23 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

Just before logging in, I saw this unexpected error message:
"The system is running in low-graphics mode. Your screen, graphics card,,
and input device settings could not be detected correctly.

gufw error

I got the following error when I run gufw. Does anybody know how to
fix the problem?

$ gufw
Traceback (most recent call last):
File "/usr/share/gufw/gufw/", line 21, in <module>
from view.gufw import Gufw
File "/usr/share/gufw/gufw/view/", line 19, in <module>
from gi.repository import Gtk, Gdk, WebKit
ImportError: No module named repository
$ uname -a
Linux caph 3.13.0-143-generic #192-Ubuntu SMP Tue Feb 27 10:45:36 UTC
2018 x86_64 GNU/Linux

Data Loss

Hi all. While I was making a boot usb key using ubuntu xenial, don't
know what happened, but the default program erased my external hd
toshiba 1T. I'm rather sure that I did not tell the program to work upon
it, but anyway this is not the question. I tried to recover the data
inside the hd using Gparted, Testdisk and Photorec, but the only
opportunity they give me is to copy an image of the hd.

Linux substitute for Dreamweaver

Hello all:

I have a friend that is trying to convert all of his computing over to
Ubuntu based Linux. A major holdup is that he maintains several WEB
sites on a volunteer basis. He is using Dreamweaver for this purpose
and hasn't been able to find a Linux based alternate. What can I tell
him to do?



Run tracker reset without display - dbus error

I am using tracker [1] and trying to run

tracker reset -f ~/

However, I am running it in a situation where there is no display
(from a node-red exec node). I get the error

Tracker-WARNING **: Failed to load SPARQL backend: Cannot autolaunch
D-Bus without X11 $DISPLAY

Is there some magic I can perform to allow this to work?


[1] <a href="" title=""></a>

hidden symbol `pthread_atfork' in /usr/lib/x86_64-linux-gnu/libpthread_nonshared.a(pthread_atfork.oS) is referenced by DSO


yesterday evening, and today, I upgraded a bionic container where I was
building the nvml packages, and to my surprise a build that worked last
thursday stopped working today:

make[3]: Entering directory
cc -o manpage manpage.o -Wl,-rpath=../../debug -L../../debug -lrpmem
-pthread -lfabric
/usr/bin/x86_64-linux-gnu-ld: manpage: hidden symbol `pthread_atfork' in
/usr/lib/x86_64-linux-gnu/libpthread_nonshared.a(pthread_atfork.oS) is
referenced by DSO
/usr/bin/x86_64-linux-gnu-ld: final link failed: Bad value
collect2: error: ld ret

Intent to remove gksu from Ubuntu 18.04 LTS


I have been working for months to remove gksu from Ubuntu. (It has
already been removed from Debian). The Mythbuntu blocker was fixed
this weekend and I just noticed an Ubuntu Kylin blocker that is being
worked on.

I just wanted to let developers know that I will be trying to remove
gksu from the Ubuntu 18.04 LTS repositories before release. And since
this is a late change that will affect some workflows, I'm emailing
this list.

More details are at <a href="" title=""></a>

Jeremy Bicha

Call for testing: mongodb 3.6

I've updated mongodb and mongo-tools from 3.4 to 3.6 in Bionic (LP:
#1761807). They remain in universe.

As this is very late in the cycle, I took quite some care in testing
things to detect any packaging regressions.

no access to wifi after updating dualboot on HP250 G5 NB

Hi there,

I have install 16.04 LTS some month ago on a HP 250 G5 notebook.

Everything worked fine, but the dualboot was clumsy, as the user had to go into
the bios each time booting the laptop to define what OS to boot.

So i used bootrepair to set up the grub such, that the user gets a grub screen
to select the OS to boot from.

It was quiet some shuffling till I had all obstacles regarding UEFI restriction.
But not the dualboot works as expected.

However, the LAN, bot wired and wifi behaves strangely.

1. WIFI: I can not find any WIFI interface.

The Gnome Ubuntu Extension

The Gnome Ubuntu Extension, by Xaba
<a href=";p=13756647#post13756647" title=";p=13756647#post13756647">;p=13756647#post13756647</a>

Hi buddies. I have a Dream!

I don't know if someone already proposed a "Gnome Ubuntu" extension to
offer an Ubuntu Unity experience in Gnome. If Canonical doesn't want to
continue developing the Unity, they could maintain an official "Gnome
Ubuntu" extension to offer the Unity experience in Gnome and take care
the "Unity orphans". If Canonical doesn't want to do it, doesn't matter,
we can do it.

update-manager 1:18.04.11 (Accepted)

I saw this upload to bionic today and a similar one for a different
package yesterday and had some questions about it.

Why is it necessary to modify individual packages so that GNOME
Software won't uninstall them?

Is update-manager being a dependency of ubuntu-desktop not enough to
prevent it from being uninstalled?

If it is necessary to modify every package which a metapackage depends
on how is this work being tracked?

What checks are in place to ensure that no packages are missed and that
new additions get appropriately changed?

----- Forwarded message from Jeremy Bicha < ... at ubuntu dot c

launchpad... how to add a backport dependency to a PPA.

Hi folks,

I have a package: <a href="" title=""></a>
that I have a recipe that auto builds it for 18.04, but it depends on a version
of a package where the distro version is too old in older releases.

<a href="" title=""></a>

So I would like for the PPA to build & contain a back-ported version
of the dependency.

librabbitmq > 0.8.0

Do I create a project librabbitmq0_8 ?

Second Bionic Beaver test rebuilds

The second test rebuild of Bionic Beaver was started on April 08 2018 for all
architectures, all components (main component and seeded packages finished,
unseeded packages still building).

email security?

I run thunderbird on various flavors of Ubuntu in text mode.

Is there any risk in just opening a suspicious email using thunderbird
in Ubuntu?

If there is risk does using text mode mitigate it any?

Would opening it in print preview make it less risky?

Regards, Jim

OT?: break up an incoming data stream into fixed length lines? in bash?

I'm using U16.04 to read data from a sensor. The incoming serial data
stream has no newlines, just continuous bytes. In the datastream the
letters B and M occur together at the start of every 24 byte
subsequence. I'm reading the data using getserial with appropriate
speed and parity parms. I don't see a simple way to break it up into
lines with each line having 24 bytes. Does anyone care to suggest a
method? I'd use a bash function if there is one.



Installing vmware player to the latest Ubuntu

Dear community,

I need a technical support. Because I am using Ubuntu Mate with Screen
reader, I want to use Vmware workstation player, Virtualbox
accessibility isn't good at this time. I reat:
<a href="" title=""></a>

but after an installation, I get error in kernel update, can't start
services. I am using Ubuntu Mate 18.04 Beta 1 and 16.04 and the same
error. In the .log file, the last message is can't execute build
commands. Am I doing something wronk?


Pavel Vlček

Adding a stream to XMMS2

I've decided to resurrect GKrellm on my Ubuntu 16.04 box as I liked the
various options for monitoring and other things it does. I installed
the GKrellmms plug-in as when previously running it (when it used XMMS)
I liked the option of streaming live audio with it. Now however I'm
having a problem getting that to work with XMMS2. I want to stream from
this site - <a href="" title=""></a> I've saved one of
the stream URLs as live.pls.

wrong icon

Running 16.04 fully updated. A while back I had a problem where
programs would "disappear" when minimized. At that time I got a number
of good suggestions and workarounds on this list that made it mostly
work correctly. Thank you all again. Since then I have seen something
else that made it look like they disappeared. What happens is that,
when minimized, they are associated with an icon on the left vertical
column that has NO RELATIONSHIP to the running program. The small white
triangle does appear on that icon, and when clicked brings back the
minimized program.

Re: What is the universal (world wide) understanding behind degaussing hard disks?

03 April 2018 at 19:09, David Fletcher wrote:
Re: What is the universal (world wi (at least in part)

Whats wrong with Thermite, easy to make and the heat will far excede the Curie
temperature of any disk plater material, not to mention melting it

Gwrite/Wordpad equivalent?

Of course, Ubuntu comes with text editors and word processors -- the
former can be extremely lightweight (or not), and the latter is
generally extremely heavyweight. There used to be an app in the middle,
though -- the Wordpad equivalent, for Linux. Pretty sure it was Gwrite,
which seems to have ceased development in '11 or so.

Nutshell: looking for a stupid lightweight word processor. Don't care
if it opens .DOC files. Don't care if it publishes to .HTML.

Bionic Beaver (18.04) Final Beta Freeze

In some short while bionic will enter the final beta freeze, with a
goal of releasing the Final Beta images hopefully sometime late
Thursday. The link to the milestone can be found here:
<a href="" title=""></a>

The queue freeze will last from now until final release this month,
which means that all seeded packages will now need a spot-check and
review in the queue from a release team member before they are let
into the archive.

As with the previous releases, we have a bot in place that will accept
uploads that are unseeded and don't affect images.

What is the universal (world wide) understanding behind degaussing harddisks?

Good evening from Singapore!

The foremost question which I want to ask is, what is the universal
(world wide) understanding behind degaussing hard drives?

I work for No Secrets Agency (NSA) Pte Ltd (fictitious company name

GLV does reduce performance loss of aged RAM

"While most issues with computers slowing down are well known, and
pretty much a solved problem. There is one that is only slowly becoming
noticeable as systems get progressively faster.

This is the problem of memory slowing down as it ages."

For more information read
<a href="" title=""></a> .

To work around this issue, it's possible to use GLV.

Search for utility to identify source of WWW traffic


I currently have two web browsers open (not firefox), and their
download managers show no downloads occurring.

But, something has beeen downloading data at around 200-300kBps, for
over an hour.

Is a utility available, that can identify what application(s) is/are
downloading data, and, what URL's are being accessed for the downloads
being performed?

Thank you in anticipation.

Bionic Beaver User Interface Freeze and nearing Final Beta reminder

This is a gentle reminder that Bionic Beaver (18.04) is in User
Interface Freeze since last week (March 22th). Remember about that
when uploading packages into the archive as any freeze-breaking
changes per <a href="" title=""></a> need to have
an ubuntu-release approved exception [1].

Also, since Final Beta is planned for next week already, remember
about the nearing Beta Freeze on Monday. If you still have any high
impact changes pending for 18.04, now is the time to upload.


[1] <a href="" title=""></a>

Weird systemd resolv.conf behavior


I've been having a strange problem with the systemd resolver on my
work laptop. Basically, whenever I use it at the office, a "search"
line with the work domain is added to this file

/etc/resolv.conf -> ../run/resolvconf/resolv.conf

and it stays there after I suspend the laptop, carry it home, & wake
it up to use the wired or wifi home network. The effect is that it's
impossible to resolve work hostnames.

Keybinding FUBARness.

Hi! I run MATE with Compiz, and love-love-love it... except for
something that's happened very recently. I use the
<alt><left-mouse-button> keybinding for window movement; it's now second
nature, and is on all my systems. Greatest thing since sliced bread;
don't have to even think about finding the dragbar, just drag the whole
darn window. Yay.

But, suddenly, it just stopped working on my primary work system.

apt update messed up after crash

Hi there,

during a manual apt update on a remote box, the terminal crashed.

No I can not run apt upgrade animore.

This is what I get when issuing

apt upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade...

New Ubuntu Core Developer - Eric Desrochers

Today, the Ubuntu Developer Membership Board approved Eric Desrochers
(slashd)'s application to join the Ubuntu Core Developer team
(~ubuntu-core-dev). Eric now has upload rights to the entire Ubuntu

Of note, Eric joined the new ~ubuntu-sru-developers team a year ago.


On behalf of the DMB,
Jeremy Bicha

Zoom H6 Audio recorder/interface


Does anyone knows if the Zoom H6 recorder works with Ubuntu/Linux as
audio interface? I intend to buy one if it works.

Thanks in advance!


INFO: task gnome-shell:5523 blocked for more than 120 seconds

I've noticed that my system will suddenly seem to 'lock-up'. I'd be
unable to switch windows and even the clock would freeze. I looked at
yesterday's kern.log.1 and saw this -
nG35/ Kernel info is:

uname -a
Linux localhost 4.13.0-37-generic #42~16.04.1-Ubuntu SMP Wed Mar 7
16:03:28 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

I've found several instances of this via Google searches however none
really show a fix that I can see. 

Ubuntu Kernel Team - Newsletter, 2018-03-21

March 21
##Development (18.04)##
[](<a href="" title=""></a>)

* On the road to 18.04 we have a 4.15 based kernel in the Bionic repository.

Important upcoming dates:

        Final Beta - Apr 5 (~2 weeks away)
     Kernel Freeze - Apr 12 (~3 weeks away)
      Final Freeze - Apr 19 (~4 weeks away)
      Ubuntu 18.04 - Apr 26 (~5 weeks away)

##Stable (Released & Supported)##
 * The updated kernel packages for the current SRU cycle are now in
-proposed ready for verification and tests.


Deprecation notice for mail-stack-delivery (dovecot) - planned to be dropped in 18.10

since Ubuntu 18.04 has reached feature freeze we started to think about
One of the changes ahead is the dropping of the mail-stack-delivery package
(part of dovecot).

This package was created a long time ago with the intend to simplify
several steps of a mail server setup, for example to get a safe ssl secured
default installation.
It is essentially almost only a postinst to set up some better defaults.

But the bit that I can derive from bug reports and such indicates that it
is almost unused these days and has become an unused maintenance debt (it
started to show it's age - no

how to upgrade postgresql?

I am not sure if this is a Ubuntu question or a Postgresql one
but I have to start somewhere so...

I am new to Ubuntu and have installed 17.10.

Supporting LZ4 as initramfs compressor


Initramfs-tools uses gzip compression by default which served us well
for quite some time but LZ4 offers way faster decompression while
making a only slightly bigger initramfs files.

On my old laptop the initramfs extraction time decreased from ~1.2s to ~0.24s:
(with lz4)
kernel: [ 0.297726] Unpacking initramfs...
kernel: [ 0.535061] Freeing initrd memory: 77940K
kernel: [ 0.301637] Unpacking initramfs...
kernel: [ 0.539109] Freeing initrd memory: 77940K
(with gzip)
kernel: [ 0.273748] Unpacking initramfs...
kernel: [ 1.490066] Freeing initrd memory: 57140K
kernel: [

sendEmail trying to use ipv6

That as far as I can tell is the problem but I've no idea what's
causing it. Can anybody help please?

I have a program that I wrote some years ago which runs every night as
a cron job on my Ubuntu server 14.04 (32 bit hardware), to email me
with reminders of things to do. It has a system call to use the
sendEmail utility to do this.

Everything was working just fine until a week or two ago. Now, if I for
example issue the command:-
sendEmail -f <a href="mailto: ... at thefletchers dot net"> ... at thefletchers dot net</a> -t <a href="mailto: ... at thefletchers dot net"> ... at thefletchers dot net</a> -u
Software testing...

Wi-Fi WPA Hacking Tool is Totally Useless on New Wireless Routers


I am sharing my learning outcomes.

Recently I downloaded Kali Linux 64-bit Version 2018.1 and ran it on
my HP laptop with the integrated Intel Dual Band Wireless-AC 8260
Wireless Network Card.

I wanted to test if I could hack the Wi-Fi WPA password on Ruckus R700
Access Point (AP) and the Aztech DSL8900GR(AC) Wireless Router. So I
started using the Reaver WPA cracking tool.

I understand that the Reaver tool works because there is a bug with
Wi-Fi Protected Setup (WPS).

I have no luck with Reaver on the Ruckus R700 Access Point.

Bugs reports should include syslog warnings or not?

Hey there,

<a href="" title=""></a> was raised
to my attention in a discussion about apport/e.u.c and I'm wondering if
the change is right

The report pointed out that private info have been included in a report
through JournalError.txt, and the solution applied was to change apport
to include errors level messages only and not warning.

Looking a bit a journalerror on some bugs it seems we have indeed some
components that log too much content as "warning" (gdm in that case),
but changing to "error" has been cutting out useful warnings and doesn't
seem the

Re: Unable to write to new partitions

On 17/03/2018, Colin Watson < ... at ubuntu dot com> wrote:

Re: Unable to write to new partitions

On 17/03/2018, Volker Wysk <> wrote:

Unable to write to new poartitions


I shrank the boot partitions of teo installed operating systems, and,
for each thence created unallocated space, I created a new sext4
partition, to which, I assigned the respective labels Data05 and

I then, from within my UbuntuMATE 16.04 installation, ran sudo chmod
777 on each new partition, so as to enable read+write access to the
two partitions.

But, I can not write to the two partitions.

What do I need to further do, to these partitions, to enable read+write access?

ls -l /dev/sda18
brw-rw---- 1 root disk 259, 2 Mar 17 20:50 /dev/sda18

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