How to 'do-release-upgrade' from 16.04 to 18.04 remotely using PuTTY?

I have an Ubuntu Server 16.04.6 LTS. It is used as a web server,
OpenVPN server and Subversion backup server.
It is headless on Intel CPU (64 bit) hardware without both display and

need debug version for checking kernel freeze

Dear team
I ahve a Ubuntu 12.04 (precise) guest vm running on qemu KVM .

Amavisd Decoders

Hi Ubuntu Community Support Team,

Amavisd on Ubuntu 18.04LTS is failure to load several decoder. How do i
enable of loading these decoders and modules?

MIDI in for VirtualBox iOS guest


the Synth One open-source project
[ <a href="" title=""></a> ],
unfortunately not available for Linux, runs fine installed to an
iOS 12.2 VirtualBox guest [ <a href="" title=""></a> ].

Amavisd Decoder

Hi Ubuntu Guys,

Amavid on Ubuntu 18.04LTS is failure to load many decoder.

"Authentication failure" on Ubuntu 18.04...

I have a server running CentOS 6 on the bare metal, running the stock CentOS 6
OpenLDAP packages (openldap-2.4.40-16.el6.x86_64,
openldap-clients-2.4.40-16.el6.x86_64, openldap-2.4.40-16.el6.i686,
openldap-servers-2.4.40-16.el6.x86_64) [yes I know these are old, but they
*work* -- "If it ain't broke, don't fix it."]. There are two VMs running on
this server, one running Ubuntu 14.04 and the other Ubuntu 18.04.

OT - driver maintainer details?

In the article below about kernel updates is a reference to a driver for
a Plantower PMS7003 particulate matter sensor. I'm using this series in
air pollution monitoring and its usual interface to the computer
is over a serial line. I consequently am very curious about how and why
it would need a specific kernel module.

Can anyone refer me to more information about the originator of this
patch? I'd rather ask directly but don't know how to go about it.



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

Re: can't find asus wifi after wiping W10 for mint

24 March 2019 at 15:52, <a href="mailto: ... at uniserve dot com"> ... at uniserve dot com</a> wrote:
can't find asus wifi after wiping W (at least in part)

Ok my Asus may be a bit older and runs Ubuntu (17.04 Aardvark for now), but
Wifi works fine, you may have hit an old problem that many may have thought

The Wifi card could be a Broadcom (my card is a BCM4318 [AirForce One 54g])

could you try

Sudo lshw -c network

if it turns out to be a Broadcom it will (probably) work fine

post results, I have a script that sorts this, many of my lappies have
Broadcom cards

can't find asus wifi after wiping W10 for mint

my friend said sure go ahead and wipe windows 10 and install mint just
so you save my files and put them back on. all of that was routine and
worked ok except that the wifi quit. I plugged a little usb wifi radio
in and it was recognized and works fine. I've looked in dmidecode and
in dmesg for hints.

Add OS's to Grub

Hi All

I have just consolidated two old(er) PC's into a slightly newer one, basically
took the hard drives out of them and put into the new pc, much to my surprise
Win7 did not complain (much) once I got my router to accept new Mac/IP/PC

I would like to boot without any extra keying for Boot order, but both Grubs
only show their own OS´s

Maybe a senior moment but thought grub (it has in past, when I booted from a
USB HD with Bionic on) found OS´s at boot?

I know that Trusty is coming to EOS so I will be putting Xenial over it

Thoughts ?

formatting a usb drive


Can somebody advise me what is going on here please

I have just opened a new usb drive that is 16gb

I place it in my computer running Ubuntu 18.04

lsb_release -a
    No LSB modules are available.
    Distributor ID:    Ubuntu
    Description:    Ubuntu 18.04.2 LTS
    Release:    18.04
    Codename:    bionic

uname -a
   Linux lupus-st-andrews-ac-uk 4.15.0-45-generic #48-Ubuntu SMP Tue
Jan 29 16:28:13 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

Run parted

parted /dev/sdc
    GNU Parted 3.2
    Using /dev/sdc
    Welcome to GNU Parted!

Google account using Online Account with Yabico key

Hash: SHA256

All my google accounts are advanced privacy login, I have to use one
of my Yubico keys. However even though I only have Chrome installed,
the Settings app, seems to have it's own browser so I cannot use my
Yubico key.

Is there anyway to force it to use Chrome. I don't use chromium


Label Printing

I have been given a TM-T88II M129B thermal printer by a friend who has
bought a newer label printer for his business.

This is a receipt printer but he was using it to print on rolls of
adhesive labels for product labelling.

I have not used a receipt/label printer like this on Ubuntu (or linux)

How would I go about setting this printer up to print from glabels?

Specifically how does the printer know when a label starts/ends?
The Dymo labelwriter labels which I have used in the past have black
bars on the back to align the labels.

Has anyone got any experience with this?

I am u

Does Nautilus need Samba

Odd question, but can anyone tell me *definitively* (i.e., please don't
answer unless you are absolutely certain):

Does Nautilus require Samba to be installed in order to browse Windows
networks and access shares?

 - NOT talking about mounting SMB file systems with smbfs

 - NOT talking about the command line client.

 - NOT asking whether Samba is installed by default
 - NOT talking about libraries or utilities packages

Regards, K.

get-iplayer Snap


I have installed the snap as follows on Ubuntu 18.04.1 (with and without
classic option).

sudo snap install get_player --classic

but when I try to use get_iplayer to download:
paul@paul-pc:~/Videos$ get_iplayer URL_HERE

I receive the following error:
ERROR: Cannot open (write): /var/lib/snapd/void/..........

I cannot find anything searching the web.

why is get_iplayer trying to write to this location?

Have you used Duplicati to backup Ubuntu Server 18.04 LTS?

Good evening from Singapore,

Have you used Duplicati to backup Ubuntu Server 18.04 LTS?

Is it good?

Thank you for your review.


The Gospel for all Targeted Individuals (TIs):

[The New York Times] Microwave Weapons Are Prime Suspect in Ills of
U.S. Embassy Workers

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


Singaporean Mr.

Should ufw block access to localhost?

I am setting up ufw on a server and have a symptom I don't understand.
I am running mosquitto with TLS on port 8883 on the server so in ufw I
have opened that port
sudo ufw allow 8883
and can then access port 8883 from another machine, as expected. I
cannot access it if I do not open that port, again as expected.

However I also access mosquitto locally on the server using
localhost:8883 and the feature I do not understand is that if ufw is
enabled then I cannot access it via localhost whether the port is
opened or not.

Re: floppy disks?

Depends on how old they are.
Very old ones were 8".
Then, there were 5.25" floppies .
Then there 3.5" ones.
What vintage do you have?

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

Look for an ancient desktop that can read the floppies in grandma and grandpa's attic. Then, you have to get the data from the ancient desktop to a modern computer.

Or, look for a media conversion shop.

Recovering data from an extinct platform can be very challenging.

Is the data worth the trouble?

And, the media may have decayed over the decades.

floppy disks?

I need to get some files from some VERY old MS floppy disk archives.
Running Ubuntu 16.04 updated but thinking of upgrading. Can I buy and
use a USB floppy disk drive to read these disks on a plug and go basis?
If so, do I have to buy certain drives to work well with Ubuntu?

Will I have to download any software to do this, or perhaps do this in a
better way? Some may be early floppies and have lower density - might
these not be readable by what is now recognized by Ubuntu?

grub-install problem

I have two partitions with Ubuntu installed on my computer. SDA3 is my normal
system, SAD7 is a test system. Whenever I update the test partition if grub is
also updated I need to run "grub-install --force" on my normal system, SDA3, to
get it to be the defaupt boot partition.

Today after updating SDA7 it updated grub so SDA7 was the default boot

Today, I did manage to connect my "JBL Clip 3" Bluetooth speaker to *Ubuntu 18.04 LTS.

Dear Everybody at the list.

This is a trial message to check whether I did manage to get subscribed again
to "Ubuntu Users". Let me know wheather you receive this message via the list.

Today, I managed to connect my "JBL Clip 3" Bluetooth speaker to *Ubuntu
18.04 LTS - after many, many, many :-) fruitless attempts......

After a bit of research, I stumbled on this answer at "Ask Ubuntu":

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

Reportedly, *Ubuntu 18.04 LTS ships with a "buggy" version of the package

Re: Getting the finger print reader to work

07 March 2019 at 10:01, Sorin Srbu wrote:
Getting the finger print reader to (at least in part)

May not be same lappy but I found this to work


sudo add-apt-repository ppa:fingerprint/fingerprint-gui
sudo apt update
sudo apt install libbsapi policykit-1-fingerprint-gui fingerprint-gui
;sudo add-apt-repository --remove ppa:finge

Getting the finger print reader to work

Hi all,

As the Subject field says.
I've been trying to get the finger print reader to work on my HP ELitebook
850 G5 the last couple of days with no success.

Googling for this problem I see a lot of people having the same problem as I

Ubuntu 18.04 as LDAP Authentification Client -- What am I missing?

OK, I followed the instructions here:

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

But things are not working:

Script started on Wed 06 Mar 2019 04:38:06 PM EST slogin ub180464

Welcome to Ubuntu 18.04.2 LTS (GNU/Linux 4.15.0-46-generic x86_64)

* Documentation: <a href="" title=""></a>
* Management: <a href="" title=""></a>
* Support: <a href="" title=""></a>

* Canonical Livepatch is available for installation.
- Reduce system reboots and improve kernel security.

Petulant Startup Disc Creator [SDC]


I was experimenting and decided to make use of a 1GiB USB flash drive, now
that Ubuntu isos won't fit on it.

So I dug out an iso file for dban, the disc wiper. Then I ran isohybrid on
a copy of it. Then I tried to open it from Startup Disc Creator and it
refused to accept the file! No message, just plain stroppiness. Is there a
reason for this?

I know I could use dd but I don't like running it on my main system so that
means transferring things to my 32-bit netbook and using dd on that,
followed by a call to sync.



Packages (without .gz) file missing for trusty-security and trusty-updates

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

both are referenced by:
<a href="" title=""></a>
<a href="" title=""></a>

Please advise.

How to find source and targhet of data transmissions


I am running UbuntuMATE 16.04.x.

For the past few minutes, the System Monitor shows data being
downloaded, that I have not authorised, and about 300-500 kB/s.

How do I find where the data is originating, and, what is downloading it?

Thank you in anticipation.

MATE questions

Is there a mailing list for the MATE desktop? I am not finding it with

I am some configuration questions relating to MATE.

? is missing hvm images

Hi, it looks like
<a href="" title=""></a> was
updated on Feb 26 and no longer contains any hvm images.

I pinged website chat and sent another email to this list yesterday but I
hadn't subscribed yet and I guess the message wasn't approved.



Disable Blank Screen on Idle


Ubuntu 18.04.1 LTS and xdg/openbox as X environment.

About the mail title, I would like disable blank screen on idle (it is
happening to 10min). I've tried (found in another thread as solution):

xset s off
xset -dpms <--- this isn't working, it shows "server doesn't have extension
for -dpms option"
xset s noblank

Nothing working for now. Can someone help me please?

Thanks beforehand.


CBS site

Does anyone in this group use CBS all access?
My wife wants to watch a show on their site - which fully allowed
her to sign up but I cant get any browser to work. I cant even
login as their button doesnt work.


How to make results of “localedef” survive “dpkg-reconfigure locales”?

Hi all,

Im using UB 16.04 LTS Server and yesterday a new version of the
locales[1]-package has been released and installed:

I'm additionally using PostgreSQL 11 with databases relying on the
character set `windows-1252` for historical reasons:

Ubuntu 18.04.2 unresponsive on hd activity

When stuff is written to hd, my Ubuntu 18.04.2 gets kind of unresponsive.

To reproduce:
echo /dev/zero > test

Then click the Google Chrome icon (or anything else) on the left. The program doesn’t start until CTRL+C on aforementioned command. The disk is a mini PCI SSD. Changing the scheduler on the disk to “noop” doesn't help. It is a laptop Dell Precision M4600 with chipset Mobile Intel QM67 Express. Can anyone reproduce this? Regards

Please keep me in CC

installing conjure-up k8s on openstack

Hi all. I have installed successfully conjure-up openstack on a single
machine for test purposes. Now I d like to install conjure-up kubernetes on
top of my openstack.
When I start conjure-up and choose openstack it ask me
username,password,domain name and project domain name. So all ok but then
the other 2 questions are access key and token key..... what are they?
Where can I get those info from?

lsblk odd results

Hi all

I have been trying to check (confirm) if some of my laptop drives are SSD's

$ lsblk -d -o Name,Rota

returns 1's for all drives (I take to mean all are Rotational drives not Solid
State), I got curious as I was sure some had SSD's so I pluged in a pair of usb
memory stick/flash drives they also return "1's" so something is not correct

routing issue with strongswan and Ubuntu server 16

Hi all!

I have sent the same email to strongswan mailing list but got no answer so
far, will appreciate any ideas.

We have ipsec (ikev1) + ipip configured on Ubuntu server 16, kernel
4.15.0-45-generic, strongswan. Our peer has a strange strict security
policy making rekey every two minutes (crazy but they don't want to change

conjure up openstack dashboard login issue

Hi all.
I have installed conjure-up openstack and all seems to be ok but as I have
my host bare metal machine with an ip and conjure up deployed
all the stack on, I can't connect from remote to those IP and
specifically on horizon.

*openstack-dashboard 13.0.1 active 1 openstack-dashboard
jujucharms 257 ubuntu exposed*

Also the dashboard is exposed but not sure how I can access it.
Any idea?


Question about juju and conjure-up

Hi all. Just a quick one. Can I post questions about juju/conjure-up here?
I have already posted stuff on askubuntu but I wonder if I can that here

Help with video sound

I have I have xubuntu 18.04 installed on and old dell optimzer 780 box.
IT is a dual boot system with mint 19  on a second drive I have tried
Kdenlive on both hard drives and tried open shot video editor on both
drives neither can show a video wave form on the time line.I then
installed cinelerra and still no wave form. I have good sound in all
cases. I need the wave for to edit out all the aaa's and's I use. I am
think It could be a hardware or software problem or maybe my canon video
camera is put out faulty sound.I believe I Have the newest stable
versions of all soft ware.

18.04 HWE stack causes Thinkpad button problems

I installed the HWE stack on my Thinkpad X220. This might have been
unwise; everything was working fine.

Now, the middle button no longer causes scrolling, and I can't tap to
click on the trackpad.

Anyone else having problems?

Debugging bash scripts.


I'm looking to have some kind of debugger to debug bash scripts.

bashdb might be suitable but why isn't it in the usual package repositories?



Questions about Ubuntu 18.04 live/install ISO

I am trying to run/install Ubuntu 18.04 in a VM on my CentOS 6 Laptop and it
is never coming up. The boot process seems to be looping. I have two

Does live/install ISO Ubuntu 18.04 need a connection to the public Internet to
come up? I only have dialup Internet and initially, the network will be to a
closed vlan. Is the a problem?

Also, I have only allocated 1G of RAM to the VM. Is this too little?

Please Recommend Affordable and Reliable Cloud Storage for 50 TB of Data


Could you recommend affordable and reliable cloud storage for 50 TB of data?

Here are some important factors to consider:

1. Personal/non-commercial use.
2. Must be affordable, since I am unemployed most of the time and have
super low levels of income for the past 12 years since I graduated
from the National University of Singapore in 2007.

Spelling checker Thunderbird 60.4.0 (64-bit)

Thank you for reading this.

A week or so ago the spelling checker started to flag plurals as being
miss spelt. I'm been using the UK dictionary for years but just to see
if that is suddenely the problem I tried the US dictionary with the same

An Internet search hasn't revealed any problems with the dictionary.

Missing folders


Having an odd thing happen, I had setup an external USB to run 16.04.5, it runs

fine on the netbook I set it up from, when I try to boot it on my desktop it
throws error boot/grub/i386-pc/normal.mod not found & drops to

Grub Rescue>

ls (hd0,msdos1)/boot/

shows only /

i.e. no grub folder, but if I run a live session & inspect that same disk
/boot/grub/i386-pc/normal.mod is there

what I did I miss or do wrong?

Where to define GRUB_DEFAULT


where do I define GRUB_DEFAULT? /etc/default/grub sounds like "this is
the defaults, change it somewhere else". I read somewhere about
/etc/defaults/grub.d/ which does not exist. /etc/grub.d/ esists but
seems to be something else.

So where would I specify e.g. GRUB_DEFAULT?

Thank you!

Apache2 v 7.2 BCMATH

I just upgraded to 18.04 LTS from 16.04 LTS.
I am informed that bcadd() is an undefined function.
As far as I can tell bcmath has to be compiled in.
am I missing something?
How do I get bcmath?

AppArmor / Selinux conflict

Hi list,

I uninstalled apparmor but still is initialized and the system can't enable

# dpkg -s apparmor
dpkg-query: package 'apparmor' is not installed and no information is
Use dpkg --info (= dpkg-deb --info) to examine archive files,
and dpkg --contents (= dpkg-deb --contents) to list their contents.

*kernel: [ 0.004000] AppArmor: AppArmor initialized kernel: [
0.157081] AppArmor: AppArmor Filesystem Enabled *

DNS problem resolving local names

I'm running Ubuntu 18.04 with a Draytek 2860n router connecting to the
internet. The router provides resolution of some LAN addresses for me:-

For example my printer:-

chris@esprimo$ dig @ oki

; <<>> DiG 9.11.3-1ubuntu1.3-Ubuntu <<>> @ oki
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 64099
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; WARNING: Message has 3 extra bytes at end


MD RAID6 Performance

Hi Everyone,

I have a twelve drive md raid6 and am a bit puzzled about the raw performance I'm getting out of it.
Each drive can sustain about 200 MiB/s at the beginning of the drive so I expected something around 2.4 GiB/s read speed and 2GiB/s write speed when writing full stripes at the beginning of the raid array.

Unfortunately ...

How to force a total WiFi connection reset?

I have a large house and have a second (old) router working as a WiFi
access point to improve coverage.

When moving my laptop (running xubuntu 18.04) around the house it
refuses to 'let go' of a weaker wifi signal in favour of a stronger one.

Is there any way I can make Network Manager completely reset the WiFi
connection such that when reconnecting it finds the best signal rather
than using the last one it had? Simply hitting disconnect and then
reconnecting doesn't work.

Problem in trying to upgrade from 15.10 to 16.04.5


In trying to update the UbuntuMATE installation on a laptop, I found
that it is 15.10, and it recommended updating to 16.04.5 (which I
would, if I could).

However, in trying to implement the version upgrade, I get the error:

Required depends is not installed (sic)

The required dependency 'apt (>=' is not installed.

How do I overcome this, given that Synaptic on that system, shows that
the current installed version;
is the latest version?

Thank you in anticipation.

How do I move home out of OS partition into a partition of its own


On a couple of computers that were MSWin computers, upon which, I
installed Ubuntu Linux, a while ago, I erroneously (I should have
known better) set them up without home partitions outside the /

What is the procedure for me to now move the home directories on each
system, into partitions of their own?

Thank you in anticipation.

Strange printing problem

I have two printers accessible to me, one is an H-P OfficeJet which is
connected wirelessly to my LAN, the second is an H-P Laserjet which is
on a USB connection to my wife's (Debian) PC and then shared. I can
use both printers from every application I've tried *except* for one.
If I try to print something from within the Lazarus IDE (that's the
Pascal development package) then it works just fine with the
OfficeJet, but if I try to print to the LaserJet (which is what I want
to do most of the time) it just hangs.

problem with Apache/php after upgrading to 18.04

I just updated The OS from ubuntu 16.04 LTS to ubuntu 18.04 LTS.
The login page loads fine, but when the main page loads it
displays the php script that is loaded via AJAX as text, ie it is
not interpreted.
Then. after about 1 second, the page exits and goes back to the
login page.

A login failure redirects to the login page without displaying
any of the main page.

Success with Brother MFC-L2710DW 4 in 1

I just bought a Brother printer (good deal: Wireless, prints both sides,
separate drum/toner, feeds
envelopes, reasonable price (toner/drum/printer).  Before I bought it I
saw references to Linux
on the Brother site, but I didn't read them.  I have 13 days left in my
15 day return time at Staples.

Unfortunately I have not seen clear setup instructions and signs of
success.  I have downloaded
the Brother software, but installing it is not clear (lots of caveats). 
Brother does not provide
phone support for Linux set-ups, per their site.

Anyone have any feedback?


Possible bios issue on install of Ubuntu 18.04 Budgie


When I boot Budgie from the USB device I get " TSC_DEADLINE disabled due to
Errata; please update microcode to version: 0x52 (or later)

OT: pingdom workalike?

I've been using pingdom for some years to get outage alerts. It gave
lots of false positives but seemed better than nothing. They're
monetizing the previously free service and I'm curious if people have a
recommendation about a similar program.


Scary Ubuntu incident

Hello Ubuntu Technical Support
Ubuntu died on me today while it was doing nothing for me.
The sidebar with all my apps , active and inactive, was still shown but
no "Activities" icon at top left.
None of the apps could do anything and the "Show Apps" grid at bottom
left flashed icons on the screen that went blank.
I tried to shut down but the power light on my PC box kept flashing.
Pressing it reverted to the same display of the sidebar with apps.
Finally I disconnected the mains power and then restarted.

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