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...

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. 

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.

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.

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

Lots of kworkers


Every few days, I get a lot of kworkers (some 50) in the process list. The hard disk clatters all the time. From the web I've found that those are kernel threads. Since I have an SSD (apart from the harddisk, set up as a cache for the HD), this doesn't make my system unresponsive. But still...

What's going on here? And how to get rid of all those kworkers?


Too much data requested from _XRead

I updated one of my boot partitions to 18.04 beta, updated/upgraded and
installed an nvidia driver since the stock driver for my card was hanging.
After doing so, a gtk based proprietary application that runs fine in
14.04, 16.10, and OSX started consistently crashing in 18.04 with
inconsistent error messages like:

[xcb] Too much data requested from _XRead
[xcb] This is most likely caused by a broken X extension library
[xcb] Aborting, sorry about that.
sim1: ../../src/xcb_io.c:732: _XRead: Assertion
`!xcb_xlib_too_much_data_requested' failed.
sim1: Fatal IO error 11 (Resource temporarily una

copying all chrome config data to different user

I have historically had problems with my desktop environment when I use the
same user home directory on a dual boot system (eg, when I have 16.10 on
one partition and 18.04 on another). Therefore, I like to use different
user home directories for myself for each environment and copy or symlink
directories that I can share without compatibility quirks. I would like to
be able to have ALL data related to google-chrome accessible in both
systems. I have dozens of user-data-dir's for various things I work on,
each with their own stored passwords, cookies, etc.

16.04 update/dist-upgrade

Hi All

After having hugep[1] problems following an attempt to get my old stable 16.04
system to hwe, I made a complete (Duel boot with Win7) fresh install from a
16.04.3 USB, the tried to run

~$ sudo update -y && sudo dist-upgrade

all went smoothly, but once I re-booted I was back to the previous unuseable
situation [1]

so I had to do a fresh install again (just Ubuntu side this time) again from my
16.04.3 media, I decided that untill I had more info I would not
update / dist-upgrade, thinking that I may be at end of road, if cant

meanwhile I downloaded the lat

Fail after update (more info)

Follow up to last

I tried to start in advanced with 4.4.09 and left running for 40 minutes (so
far) screen is purple with the dots, F6 shows Network Manager Scripting service
starting / started 100's of times and an (unnamed) "job is running for hold
till boot finishes "44mins 33 secs / no limit", is this a endless loop?

I made the error of tying the hwe kernel on 16.04.3 it was at 4.4.09 (iirc)
after it went to 4.4.13 but the sustyem when was unusable:-

Screen full of what looks like dead worms or a squiggle in middle of screen,
trying a terminal did not work (afaict)

I tried the adv

Fail after update


I made the error of tying the hwe kernel on 16.04.3 it was at 4.4.09 (iirc)
after it went to 4.4.13 but the sustyem when was unusable:-

Screen full of what looks like dead worms or a squiggle in middle of screen,
trying a terminal did not work (afaict)

I tried the advanced and run wotrh the old(er) kernel and tried to follow
instructions (AskUbuntu) to get back to the old system, but that then made the
whole system fail totally, had to wipe disk and reinstall Win7 then Ubuntu
16.04.3, after install i ran

Apt update
Apt dist-upgrade

and that 4.4.13 came back (noted on grub) and I

Custom Local DNS with Ubuntu Clients

Hi Everyone,

I have a single linux desktop client running Ubuntu, and have 2 physical
servers that are on my network that providing DNS resolution.

I want the linux desktop to use the local servers for DNS resolution only,
but Ubuntu somehow keeps finding the DNS server that is in the router/modem
that my ISP has provided me with.

Is there a way I can stop the IP address of my router from being added to
the /etc/resolv.conf file?

I tried removing the resolvconf package, but this broke things as for some
reason I wasn't able to then create my own resolv.conf file.

Thanks for any help you a

how to make sure bridge interface is up with netplan after reboot


I am using Ubuntu 17.10 and therefore Netplan which I have configured a bridge for a specific network interface for my Xen virtual machines. Unfortunately when I reboot the server that bridge interface is in state DOWN so that I have to manually set it up using "ip link set xenbr1 up" command.

Grub-common failed to update (and install)

I'm running Xubuntu 16.04 in a VB VM (on Windows 7).

I tried to do a software update, and I got an error while the updater
tried to update grub-common - it says the service is not running.

When I tried to force the install, I got this:

Preparing to unpack .../grub-common_2.02~beta2-36ubuntu3.17_amd64.deb ...
Failed to stop grub-common.service: Unit grub-common.service not loaded.
invoke-rc.d: initscript grub-common, action "stop" failed.
dpkg: warning: subprocess old pre-removal script returned error exit status 5
dpkg: trying script from the new package instead ...
Failed to stop grub-comm

Query about parasitic firefox file


In the last 12 hours, 1.4GB of my home directory free space
disappeared, rendering the system unusable.

After having progressively shut the system down, before it crashed,
and, rebooting the system, with the free space still having been
disappeared, in searching for unexplained things, I found in the path
the file places.sqlite-wal with Type "unknown" and size 1.5GB and Date
Modified being a couple of hours ago.

Does anyone know what is this file, what does it contain, and, can I
safely delete it without it causing furt

17.10 has problems with embeded intel grafi

hi there,

when i try to start gparted on a freshly installed ubuntu 17.10

i get:
(gpartedbin:1515): Gtk-WARNING **: cannot open display: :0
Removed /run/systemd/system/-.mount.
Removed /run/systemd/system/run-user-1000.mount.
Removed /run/systemd/system/run-user-121.mount.
Removed /run/systemd/system/tmp.mount.

trying to start synaptic creates a coredum

when i run

susanne@alessia:~$ lspci -nnk | grep -iA2 vga
i get:

00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd
Generation Core Processor Family Integrated Graphics Controller
[8086:0102] (rev 09)
Subsystem: Intel Corpo

Facing issue with php 5.5.x in Ubuntu 14.04.5 LTS


I am getting php related errors in my product running on 14.04.5 LTS.
Details as follows =

Error =

[Mon Mar 301708 2018] [:error] [pid 19149] [client <ip_address>:45627]
PHP Fatal error: Call to a member function getLanguage() on a
non-object in /opt/user/<code_path>/webroot/inc/include.php on line

line 198 = define("sLANG", $_SESSION['obj_ClientConfig']->getLanguage() );

php version = PHP 5.5.9-1ubuntu4.23 (cli) (built: Feb 8 2018 21:59:47)
OS = Ubuntu 14.04.5 LTS [64bit]
uname = 3.13.0-133-generic #182-Ubuntu SMP Tue Sep 19 15:49:21 UTC
2017 x86_64 x86_64 x86_64 GNU/Linux

Only one CPU available with Xen on artful


I am running Xen 4.9.0 on Ubuntu 17.10 on a new Lenovo ThinkSystem
SR630 server and have noticed that Xen reports only one CPU available.
Is this normal?

how to change home on the / partition to a /home partition

I messed up my / partition so I installed UBUNTU again. Being fairly new to
linux I had assumed it would use the existing /home partition when the install
was completed. That did not happen and now I want to change it. So what do I
need to do to change the use of /home on the / to use /home in another

Meltdown and Spectre and thoughts on buying a new computer


It is about time to think about buying a new computer but I am concerned
about Meltdown and Spectre.  I understand that Intel and AMD are still
working to remove the bug from their firmware.  I don't want to buy any
new computer with a chip that must immediately be patched.  Is there any
estimates when the fixed chips will be released by Intel or AMD?  Also,
how would I be sure that any new computer would not have the defective
chip, even if the manufacturer says it is OK?    I plan to dual boot and
about 90% of the time I use Linux so the Windows vulnerability is a concern.


Migrating from QupZilla to Falkon - Was: Is Ubuntu Linux protected against the Meltdown and Spectre security flaws?

The bellow workaround seems to do the job. I didn't notice another

Begin forwarded message:


for testing purpose I simply removed the Falkon's config and copied
QupZilla's config.

rm -Ir .config/falkon/
cp -ai .config/qupzilla/ .config/falkon

By the Preferences dialog I edited qupzilla:speeddial to
falkon:speeddial , could there be additional issues that might need to
get fixed?


Re: Is it safe for Lenovo laptops to install the Ubuntu 17.10 now

Not sure that is relevant as it was only certain machines that were
According to this comment on the bug [1] the latest images contain the
fix to stop it happening. It seems the on-going issues are to do with
those who already have the problem and are trying to recover from it.
Make sure you download the latest image.
[1] <a href="" title=""></a>

Thanks. But in this link
<a href="" title=""></a>

It is still saying the following.

Is it safe for Lenovo laptops to install the Ubuntu 17.10 now

I found some conflicting information on line, some said the bug has been
fixed in the release from Jan. 11st, 2018, some said the bug is still
there. The affected laptops should not install Ubuntu 17.10.

I am here to seek more reliable information about this issue now. I am
changing my hard drive and I need a fresh installation of Ubuntu.


Hot spot customization

I was using my friends Kubuntu laptop and when you move your
cursor towards the top of the screen a large terminal drops down.
Hot Corners only has a few uses. After some searching Im not
really finding anything about this type of customization. Anyone
know of any?


Is Ubuntu Linux protected against the Meltdown and Spectre security flaws?

What are the patches that I can download and install to be protected
against the Meltdown and Spectre security vulnerabilities?


Turritopsis Dohrnii Teo En Ming's Academic Qualifications as at 30 Oct 2017

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

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

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


Booting Ubuntu on a UEFI computer

I have purchased a new computer, it is my first UEFI coomputer so I am new to

I downloaded Ubuntu 17.10.1 ISO to install on an ASUS model X541S. I disabled
secure-boot and fast-boot and enabled CSM. On the first try I did not allocate
the bios_gurb partition and could not install. On the second try I allocated
the bios_grub partition and the install completed.

Ubuntu will not boot.

I did some google searches and found that you need a few files in the /efi/boot
directory which I can not find anywhere. Does the bios_grub partition have
those files?

Any other alternative to at

Hi, I'd like to easily schedule jobs using a tool other than `at`.
Directly modifying crontab is not an option as it is too cumbersome.
Does anybody know alternatives to `at`? Thanks.

Wayland and Soiftware Updater


In preparing one computer for updating, then running the Software
Updater, 182MB of packages are to be downloaded.

In looking through the packages descriptions (which it lists, rather
than the package names), I found
""Implementation of the Wayland EGL platform - runtime"

From memory, Wayland is a nasty that wrecks p[eople's systems.

As it is shown there, and I had "updated" this system, in the last day
or so, I did a search in Synaptic (very useful software, is Synaptic)
for Wayland, and, found this system has that (the runtime) package for
Wayland, and, varuipous other Wayland pac

Mobile phone software

Thank you for reading this.

In 2007 I bought a new ZTE mobile phone which came with some Windows
software that allowed file editing, address book editing the sending of
SMSs and it allowed the phone to become a hot spot plus a few other tasks.

At the time (2007) I found a Linux command line tool but it wasn't a lot
of use because my phone wasn't supported; it was the latest model then.
I don't remember the name of the software and an Internet search hasn't
helped. Can anyone recommend some software that might be useful for my

18.04 daily build "hang"

I downloaded and installed a daily build of bionic-desktop-amd64.iso yesterday
and found it to be unstable... the X interface became unresponsive other
than the ability to move the mouse. This happened using the default
environment and in plasma with and without Wayland. I have 4 monitors with
an nvidia graphics card.

VGA compatible controller: NVIDIA Corporation GK106 [GeForce GTX 660] (rev

I didn't try to install the proprietary driver for it.

Power manager panel applet shows only one battery now, used to show two

I have a Thinkpad laptop with two batteries, I used to see both
batteries in the panel applet but now there's only one. How can I get
to see both batteries again?

Bootloader - Was: Re: How to clean up full /boot safely?

When I migrated from GRUB to syslinux I was euphoric, if you google long
enough, you might find claims from me similar to, "I got rid of the
GRUB crap, syslinux is the Holy Grail". Nowadays, I'm more careful
regarding such claims. Sometimes I'm thinking about migrating back to
GRUB. I've got good reasons to still stay with syslinux, but IMHO GRUB
is a good default bootloader, for user-friendly major distros. The way
too small /boot partition of Ubuntu default installs has less to do with
the bootloader. IMO sperating partitions from the root directory is for
hysterical raisins.

How to implement a Linux daemon in bash that can be start/stop by `sudo service`?


There are a lot of resource about creating Linux daemon. But I am not
sure which is one is the most correct and provide the essential things
for a Linux daemon in bash that can be start/stop by `sudo service`?
Would anybody point me the best resource to learn how to create such a
daemon? Thanks.

Is there anyone using Canon Pixma printers on Ubuntu ?

Hi to Everyone,

I wish to purchase a Pixma iX6850 (3920series). I already have a Pixma
3650series which only I bought 2-3 months ago, and I noticed something
annoying with its ubuntu driver : whenever an ink cartridge needs
replacement, I am unable to know which one ; it says no more than "The
ink level is low on at least one cartridge". If there is a way to know
more, I haven't yet found how.

So, I wonder if I will have something similar with Pixma iX6580.

WiFi problem, loss of DHCP/DNS when changing from one SSID to another but OK from turn on

I am having a problem with WiFi connections from my Lenovo laptop
running xubuntu 17.10.

I have a number of different WiFi sources round our rather rambling
house so the laptop has to move from one to another as I move around.

When moving to one SSID in particular it always fails to get proper
settings via DHCP, in fact it acts rather as if DHCP fails altogether.
Network Manager tells me I'm connected but the WiFi has no IP address
and thus, obviously, no functional connection.

If I turn the laptop off and power it up then it connects OK to the
same SSID.

Best command line tool to convert a webpage to a pdf file?

Hi, I have tried wkhtmltopdf. But it can not always guarantee to
generate the pdf correctly. Does anybody know a tool that can generate
a pdf from a URL reliably?

How to clean up full /boot safely?


I have a full /boot. When I run the following command, I got the
following error. Does anybody know to fix this problem?

$ sudo apt-get -f autoremove
Reading package lists... Done
Building dependency tree
Reading state information... Done
Correcting dependencies...


An odd one today!

A client has a system that is running a process that shows up in the
process list as "./". There is no file named ""
anywhere on his system. This process is chewing up most of his CPU. If
stopped, it starts again after a few minutes. It starts on boot, too.

I thnk it's malware, and since this system is showing a few other signs
of compromise my immediate recommendation was to rebuild the system
from scratch, and that's what we'll probably do.

But I'm curious - has anyone seen this before?

New power manager or locker error since latest update

I run Xubuntu 16.04 LTS.

firefox quantum saved logins export import??

I'm changing laptops and need to export saved logins (several hundred)
from the old one to the new one, both firefox 58. I can't find an
add-on to do this and it seems (although this is not really clear) that
there isn't one. Anyone have experience (especially successful) with


Does mv on a FAT filesystem actually rename or does it copy and delete?

I want to rename some picture files on a mounted digital camera
filesystem. It is a VFAT filesystem.

If I rename one of the files using 'mv <xxxx.yyy>' will the file
*actually* be renamed by changing the directory entry only or will
mv copy the file to one with the new name and then delete the old one?

Ubuntu 16.04.03 bonding issues

Hello everyone,
I set up bonding, here's the config

root@host:/etc/network# cat interfaces
# This file describes the network interfaces available on your system
# and how to activate them.

export wifi logins?

I'm switching laptops and would like to have a simple way to export or
otherwise copy my wifi logins to the new computer, anyone know a way?


device-mapper: core: unable to allocate device, out of memory


On a fresh install of Ubuntu 17.10 which I am using as a Xen hypervisor to host virtual machines I encountered a problem where I can't create any LVM2 logical volumes anymore as it seems to strangely run out of memory.

On my Xen hypervisor I have assigned 2 GB of memory a pinned 2 CPU cores reserved for the hypervisor and have currently nothing running, not even a VM.

Specify a different gcc for dkms

Hello Everyone,

I use make-kpkg to to compile a new kernel.
DKMS is install as well.
I know how to tell kpkg to use a different compiler than the default one
in /usr/bin
But I am searching on how to do this in dkms.conf
Any hints how to do this?


postgresql does not autostart after apt upgrade (on debian)

Hi there,

this is a debian question ..

A debian 8 server was upgraded wit apt upgrade.

After this postgresql does not autoboot anymore.

It can be started executing.

service postgresql start

Can anybody give me a hint where to look for the reason?



Cannot connect to unix socket '/var/lib/clamav/clamd.socket': connect: No such file or directory

This seems to happen every time I upgrade my version.

BC Math

I just upgraded my development server to 16.04.3 LTS.
I seem to be missing BC Math.
PHPinfo lists the author, but not the module.
How do I add it?


How to report a problem with a flatpax?

The problem I had was on my laptop after I had updated the Mint
partition to 18.3. I hope this not considered off topic.

I decided to try out a flatpax installation, so I installed the GnuCash
flatpax version. It installed and ran fine, but I got an error when I
clicked on a help topic. Turns out there is a separate docs package that
was not installed. I went back to Software Manager and installed it the
normal way but help still didn't. I assume because the flatpax version
was isolated from the system.

Really dark drop down lists?

At some point in the past few weeks (? not sure when it happened) the
colour on some drop-down lists has changed to a dark grey on a dark
background - almost impossible to read. It's not ALL drop-downs, just
some. An example would be the save-as formats list in LibreOffice.

- choose "save-as" in any Libre-Office tool
- drop down the formats list
- see the colors

I'm not sure when this happened or what I can do about it - where would
this colour be defined? I assume it's somewhere in the Ambience theme,
but I have no idea where to look...

Using 16.04 on AMD64 fully updated.

Regards, K.

UEFI and Ubuntu Linux


I am currently running UbuntuMATE 16.04 LTS on various computers; UEFI
and otherwise.

In performing a system update on this one (a computer that has UEFI,
which is bypassed to run Linux), yesterday, I observed that the
packages to be installed/updated (I am not sure which), included a
number of packages relating to UEFI.

In checking using Synaptic, I found that 12 packages relating to UEFI,
are available, with a few of them, installed.

When I first installed Linux on this computer (it took me about two
years to get Linux properly running on this computer, due to three
separate syste

ldconfig.real -i generates a segmentation fault

On the NanoPi Neo 2-specific distro of FriendlyCore, which is derived from Ubuntu Core, typing...
# ldconfig.real -i
…generates a segmentation fault. This happens with the two different ‘Core’ images (one supports an OLED unit; one does not). It does not happen with the two Armbian images that I tested.

Oddly enough, ldconfig works if I run ldconfig.real without ignoring the auxiliary cache (without ‘-i’).

It may be a build-specific issue, affecting FriendlyCore but not Ubuntu Core.

Any thoughts…?


ClamAV 99.3 - Was 99.3 for Ubuntu

I changed the subject since '99.3 for Ubuntu' probably didn't make
sense to most.

I'm trying to build 99.3 for Ubuntu 16.04LTS. I had no problems
building 99.2 with pbuilder. When downloading the source I got

pull-lp-source clamav
pull-lp-source: Downloading clamav version 0.99.3~beta1+dfsg-2ubuntu1
pull-lp-source: Downloading clamav_0.99.3~beta1+dfsg.orig.tar.xz from (5.611 MiB)
pull-lp-source: Downloading clamav_0.99.3~beta1+dfsg-
2ubuntu1.debian.tar.xz from (0.207 MiB)

whereas with 99.2 I got the non-beta source files.

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