Upgrade to netplan, predict new interface name


I plan to upgrade 16.04 LTS to 18.04 LTS including netplan. Is there a
way to predict the new interface names? I would like to prepare the
yaml files to be able to ssh-in after the reboot.

Thank you!

advanced options in openvpn

Trying to save advanced options in openvpn using network manager in 18.04.
There does not seem to be a save option. Perhaps the window were to expand
fully it would reveal a save button. It won't expand any further by any
method I know of to reveal the save button.

Any suggestions?



Share home directory between 2 18.04 installations

So I have a broken 18.04 (#1) installation, and installed another 18.04
(#2)instance beside it.

The new 18.04 (#2)cannot see the original home directory.

from the first installation:

mythuser@amethi:~$ cat /etc/fstab
# /etc/fstab: static file system information.
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed.

Tip for Desktop Memory management, new vm tuning option

Recent Linux Kernels since Ubuntu 16.04 have had changes to Virtual
Memory management that drastically hurt performance on Desktop loads
where RAM is not always sufficient for all running apps. With 4 to 8 GB
desktops it's easy, if multi-tasking, to starve the RAM.

Restoring backups and effect on GRUB

I'm working on backup scripts, and want to make sure I understand the
consequences of what I'm doing. In particular, I have still not decided
how I'm going to back up my / partition: tar/dar or dd,
and I'm wondering what effect there is on GRUB if a partition is moved,
resized, or restored from a tar/dar archive, because I'm thinking some of
the above operations would change where the kernel is.

Request for explanation of error message


Can someone please advise as to what the following error indicates?

The below is a subset of multiple repetitions of the error, with the
number in the square brackets, immediately after the word "kernel",
progressively increasing in each line.

The error message appearsat the command line console ( <CTRL><ALT><F1>
), and, in /var/log/syslog , from whence the extract is copied.

Jul 27 00:06:43 bret-MD34045-2521 kernel: [332491.053210] pcieport
0000:00:1d.0: AER: Corrected error received: id=00e8
Jul 27 00:06:43 bret-MD34045-2521 kernel: [332491.053216] pcieport
0000:00:1d.0: PCIe Bu

logitech headset stopped working

Hi there,

my logitech headset up a sudden stopped working. Yesterday it still
worked fine

ubuntu 19.04, logitch model ??

it is linked with that small usb dinghy (bluetoth?)

any idea what could be the reason



Nepotism, Conflict of interest: Debian GSoC/Outreachy/OSI board

Can we trust our upstream?

Are these hidden relationships putting Ubuntu devs at a severe

Is it safe for Ubuntu to encourage people to get their packages
into Debian, should we give them options to work around Debian?

People have been arriving to DebConf trying to pick apart the
recent concerns.

copy/paste not working

Running Ubuntu 16.04. Also use other pgms from KDE - kate, falkon,
konq, etc, which I use a lot, and other misc non-Ubuntu pgms. Have had a
few copy/paste problems in the past - usually in/out of KDE pgms. But
after the last couple of updates I can't do any copy/paste involving
any KDE pgm. Also copy paste from one KDE pgm to another doesn't work,
and even trying to copy text from one place to another within the SAME
kate document doesn't work! It is MUCH worse after updates.

Is there a way to get this to work?

Graphics - Was: Newest Gnome versus LTS

On Fri, 19 Jul 2019 01:36:13 +0800, Bret Busby wrote:
Hi Bret,

all graphics, NVIDIA, AMD or Intel could cause issues, e.g. when used
with some software.

Is Ubuntu 19.04 able to support Intel Core i9-9980XE Extreme Edition or AMD Ryzen 9 3950X?

Good morning from Singapore,

Is Ubuntu 19.04 able to support Intel Core i9-9980XE Extreme Edition or AMD Ryzen 9 3950X?

Intel Core i9-9980XE Extreme Edition has 18 cores and 36 threads while AMD Ryzen 9 3950X has 16 cores and 32 threads.

Intel Core i9-9980XE Extreme Edition technical specifications:

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

AMD Ryzen 9 3950X technical specifications:

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

What I am trying to ask is, is Ubuntu 19.04 able to su

Thank you


I just want to give a big Thank You! for all the help from kind souls
on this list, with my curruption problem.

I'm very willing to give something back, if I can.


Reminder: please stay on topic

Good evening all,

On behalf of the moderation team I'd like to send out a friendly
reminder. Can everyone please remain on topic for the list. This list
is sent to thousands of people and to remain a healthy support channel
needs to have the correct signal to noise level.

If you're unsure of what the list is for please read the information
sent in the reply field of every email - "Ubuntu user technical
support, not for general discussions".

Newest Gnome versus LTS


I've run Ubuntu 19.04 for some days now, and I didn't notice any
corruption (see thread "Filesystem corruption"). It may be because of
the BIOS has been upgraded, some bug in Kubuntu, replaced SATA cables,
no more dm-cache (SSD as a cache for HDD), or...

Now I am about to set up my machine anew. But I still can't completely
make up my mind, which release I should use. I have the choice between
a more stable 18.04 LTS, and a more up to date 19.04.

I tend to choose 18.04 LTS, but I wonder what I'll be missing compared
to 19.04. I've found out about Gnome Tracker.

Off subject but I need help

My telephone and internet services have been converted to NBN. I am
having considerable problems which Telstra seem unable to fix. The
telephone service is unreliable, call go to voice mail and the phone
does not ring and yet we can call out. Resetting the telstra modem fixes
the problem for a day or so but the it comes back. Most of the time the
internet worked normally.

(not) one browser for all - Was: Software repository failure

On Tue, 2019-07-16 at 14:20 +0200, Liam Proven wrote:

openssh-server for 18.04 LTS


I have a new ubuntu 18.04 VM on a locked down network. I am not able to find the openssh-server package. Apt-cache search only sees openssh-client. I don't have access to a lot of the default repos yet. I'm working with the network team to get things opened up a bit. Can someone point me to a repo where I can get openssh-server?



Correct posting format

New to the list (newly returned actually).

I want to get off on the right foot with correct posting format. I can
figure out bottom posting and proper quoting in the various gmail phone
clients. But can't find a setting to turn off HTML format for this list.

Any thoughts / guidance?


Software repository failure

I was trying to update Ubuntu 18.04 on a laptop I seldom use and got a
message saying it could not connect to a repository check your internet
connection. Nothing was wrong with the connection. It did not say which
repository it could not connect to, so what log do I look at to identify it?

Regards, Jim

How to keep Gnome up to date in a LTS system


I'm wonderung, if you have an Ubuntu LTS version, how do you get
recent Gnome3 upgrades? I mean, sooner than in two years, with the
next LTS version. I want to stick to LTS, since Lian Proven
recommended it (and he seems competent).

I've searched for Gnome PPAs, but this one gives more than 2000 (!) hits:
<a href="" title=""></a>

I've also googled some, but couldn't find the answer.

So how do you (gnome-using) guys keep your gnome up to date? I've
heard that there is a lot of developing going on for Gnome.


Can one make Eye of Gnome detect file type rather than use suffix?

In general Linux ignores file suffixes like .jpg and .png to identify
file types as it uses the magic number within the file itself.
However Eye of Gnome seems to use the suffix which is a bit of a
nuisance (I just got some images mailed to me which had suffix JPG but
were actually PNG files).

File viewers like ristretto ignore the suffix and can view the files
OK but Eye of Gnome outputs an error. I want to use Eye of Gnome for
its printing ability.

Is there any way I can make Eye of Gnome ignore the file suffix and,
instead, use the magic number?

Cloning an EXT4 partition

I want to use partition clones as part of my backup strategy, or at least
experiment with them. I've been happy with ntfsclone for windows
partitions, and just noticed that there appear to be utilities for doing
the same with other partition type, like vfat and ext4.

Unfortunately, my first experience with partclone.ext4 (part of the
partclone package) was not good. It persists in giving me errors with
messages that don't make sense: File too big when there's plenty of space,
for starters.

Anyone have experience with this package, or any replacement?

++ kevin

Re: wiped disk - no longer bootable

Zitat von Volker Wysk <>:

It's crazy.

wiped disk - no longer bootable


The problems pile up. I've wiped the first megabyte of both devices
(HDD and SSD), because I got a message on boot which sayed that the
disk with a specific ID can't be found. Using "dd if=/dev/zero
of=/dev/sda ...". Then installed Ubuntu again, which appeared to
succeed. But when booting now, it says that there is no bootable medium.

So I have wiped something which I shouldn't. How do I restore that? It
doesn't seem to be something which fdisk does.



Problems with Ubuntu install on Macbook

Hello I have a macbook I am trying to install Ubuntu to and their are two issues. One after smooth install I try to boot to ubuntu. Get an Ubuntu purple boot image and it freezes with this.It does not go into the desktop. The other issue is the built in keyboard and mouse don’t work.Any ideas on a solution?

Fwd: Filesystem corruption - Problem strikes again


The !$"% problem shows again. I can't boot any longer. The password is
rejected. When started in recovery mode, it says that the volume group
"ubuntu-vg" is not found, and that /dev/sdb2 can't be unlocked because
it is not a valid LUKS device. /dev/sdb2 is the (encrypted) part of
the SSD, in which the cache for the HDD is stored.

I'd send a photo, but the mailing list rules don't allow that.

So the problem occurs very early, when unlocking the crypto discs. Not
sure what that tells us.

Any ideas??


Filesystem corruption


I've brought my machine to the computer shop. They checked everything,
especially the PSU and the main board. All the capacitors are okay.
They couldn't find anything.

The main board is quite old, must be more than ten years. The HDD is 3
1/2 years old.

Now I still don't know the reason of the data corruption, which
wrecked my Kubuntu system. I've installed a new Ubuntu-19.04, and
found no corruption so far. The problem can't be reproduced.

Why does 18.04 not detect WiFi devices that 16.04 detects


I have UbuntuMATE running on different systems - mostly 16.04.x, but,
on one computer, I have 18.04 running.

One of the problems with 18.04, is that it does not detect WiFi
sources, that 16.04 detects.

Both detect my cellphone as a hotspot, okay, but I also have two WiFi
4G modem/routers, and, whilst 16.04.x sees them okay, and, can connect
to them okay, 18.04 does not see them, and, can not detect them.

I tried downloading and running WiFi radar and something named
LinSSID, but, while I can load WiFi Radar, it can only find my
cellphone, and nothing else (18.04 does see a WiFi prin

Backing up a damaged SSD

I've got a laptop with a damaged main drive. It's a 2TB NVME SSD, and gets
an error on a dd copy of the main Ubuntu partition, and about 200 errors on
a ntfsclone --rescue of my Windows partition.

Of course, I'm getting it replaced -- it's even under warranty from the
company that makes the laptop. But I'd like to have the best backup
possible. I like the ntfsclone --rescue option. I wonder if the dd
--ignore-failed-read works the same way -- skip a single sector, on both
the input and the output or whether is skips a whole block of the size I
told it to use.

Trackpad and keyboard not working on macbook

Hello I am trying to install Ubuntu on a MacBook. I can’t get the built in trackpad and keyboard to work. Any Ideas?

problems packaging kernel

Hello List,

hope this is the right place for this question. If not please give me a
I try to compile and package current 4.4.0 kernel from Ubuntu 16 in an
Ubuntu 14 Environment.

Ubuntu 18.04 GUI File Manager Weirdness

OK, first of all *I* don't use a GUI File Manager. However I provide IT
support for the local library where most people do use the GUI File Manager.
All of the machines are running an up-to-date Ubuntu 18.04. The only other
weirdness is that the /home filesystem is NFS mounted and user authentifcation
is via LDAP.

What is happening is that users cannot open folders on their desktop. Either
left clicking on the folder icon or right-click and Open. Nothing happens.

Backing up Ubuntu

Good evening all,

I've been helping my family set up windows and mac machines lately and been
impressed at their backup options. This put me on to looking at my Ubuntu
backup options and I feel a little hard done by in comparison, which is odd
as it's usually the other way around.

I thought it might just be I don't know all that's out there despite a few
hours poking around online so I thought I'd put it out to you all. Is there
such a thing as a good back up system/s for Ubuntu ?

best (Linux based!) all-in-one NAS-VPN-firewall?


One of my jobs in the next months will be Free Software teaching/
consulting for a small private school. Part of the consulting consists
of helping the school to evaluate how to set up some infrastructure,
using Linux/Free Software as much as possible.

I have been just asked to, quoting, "suggest an all-in-one
NAS-VPN-firewall for the school". We are talking ~80 students in the
8/13 years age range, maybe more after summer, plus teachers and

Ububtu on a macbook.built in track pad and mouse don't work

Hello I am trying to install the latest ubuntu on a macbook.I am doing
the install via usb. When I get to the screen that asks for my location
my macbook trackpad does not work and my built in keyboard does not
work. The macbook has a usb-c port for external devices.

    I have had a similar problem getting ubuntu to work on a mac
desktop. The mac keyboard and mouse did not work. I used a usb IBM
keyboard and mouse and that solved my problem. Not sure what to do with
the macbook..I can get into the grub minimal bash line at startup.

Filesystem corruption - hard disk exploded!


That filesystem corruption of mine has quickly expanded. It has expanded to
the boot partition and the LVM metadata, last.

I've booted into memtest86+, but have aborted after an hour, in order to let
it run overnight. But then I couldn't boot the machine any longer. Going into
rescue mode revealed that the cryptsetup binary (same as before) looks
corrupt. Also, the volume group wasn't found.

Before that, I've tried to log in to KDE. This failed with a message, that
some KDE file can't be executed.

preseed file with left over space in a volume group

Hi All,

I like to not use up all the left over volume to the last LV and one way I
can achieve that is using a partition /extra as the last LV and the remove
it later after the OS built like below

d-i partman-auto/expert_recipe string \
boot-root :: \
1000 10 1000 ext3 \
$primary{ } $bootable{ } \
method{ format } format{ } \
use_filesystem{ } filesystem{ ext3 } \

About PCYNLITX project and its innovations

Previously, I have presented my project to you. The current name of my
project is PCYNLITX.

PCYNLITX platform offers completely new programming technology which can be
named as Programmable Meta-Programming System and PCYNLITX platform is just
a particular application of this new programming methodology.

Basically, PCYNLITX is an intelligent integrated development environment (
IDE ) which can produce an application-specific multi-threading library
based on your needs and assists you in multi-thread software development
process. PCYNLITX is not a multi-threading library.

Garbage in package info (Help!!)


Something went seriously wrong with my installation.

I can't run cryptsetup:

desktop ~ % LANG=C cryptsetup
/sbin/cryptsetup: line 2: syntax error near unexpected token
331|\366\302*? (...)

I've tried to reinstall it, but this leads to this:

desktop ~ % LANG=C apt-get install --reinstall cryptsetup
Reading package lists... Done
Building dependency tree
Reading state information...

Testing memory and wiping hard drive before installing Ubuntu


I am refurbishing a Toshiba Satellite C50-A-1JM laptop that was donated to
the Computer Wombling Project. This is the approach I usually take:-

1. Test memory with a memtest86+ CD-R
2. Wipe the hard drive with dban CD-R
3. Install Ubuntu or Lubuntu from DVD

Sadly, steps 1 and 2 don't work any more. The system currently has Windows
and Ubuntu on the drive and I am trying to wipe the entire drive to ensure
the donor's privacy.

I can get to a GRUB prompt. Maybe I could type in some kind of GRUB command
to boot from a CD-R - what command(s) would I have to use?



df -h without loop listing??

I don't see an option for df to omit these /dev/loopXX lines,
currently 28 of them.

Latest kernel update hangs

I tried to install the latest kernel update, but the process hangs after

Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.0.0-17-generic
Found initrd image: /boot/initrd.img-5.0.0-17-generic
Found linux image: /boot/vmlinuz-5.0.0-16-generic
Found initrd image: /boot/initrd.img-5.0.0-16-generic
Found linux image: /boot/vmlinuz-5.0.0-15-generic
Found initrd image: /boot/initrd.img-5.0.0-15-generic

What should I do now? Most of the google info about grub hanging looks
fairly old.

It's hard to tell what the problem is and how one might recover.

- Richard.

Looking for suggestions on free/libre open source security scanning and pen testing products

Dear list,

I've been using and supporting OpenVas since about day one, and I like many
others am tired of it breaking every time a package has a minor update. I
don't wish to discuss that as I have decided that it's just not ready for
prime time despite all the work put into it. So my question is this:

What else is there? What do you use in your environment to conduct security
scanning and penetration testing other than OpenVas?

Login loop on 18.04

I have had this problem vexing me for some time, and can't recall the
workaround I used to get this to give me a desktop.

I reboot, or poweroff and restart, and I get to login screen.

It shows username, but when I enter password, does nothing.

I am trying to login to XFCE session.

I can get into a Ubuntu session using that same login.

Where to look?

Home directory files shown on Desktop


This afternoon I rebooted my Laptop running Ubuntu 19.04, with the
default Gnome Desktop, and when I logged back in all the files in my
home directory were shown on the desktop:

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

I have all the check boxes in the Desktop Icons extension disabled.
Whenever I interact with my home directory, in the terminal for
example, the system hangs and then the icons refresh.

Any idea what could be causing this? And any suggestions on how to not
show these on the Desktop?



simple program to send an email

I do not need an emai MTA on my system I only want to send an email from a
script to my hosted email server. Are there any simple programs that a
program/script could use to send an email and retry until it is delivered?

Kubuntu 18.04.2 LTS -> Ubuntu 19.04


I'm about to say KDE goodbye, and switch to Gnome3.

Which is upgraded every half-year as part of Ubuntu. I don't think
there exist PPA's for Gnome, in the same way as for KDE, that give you
the newest Gnome. So I have to drop LTS and "swim with the crowd",
getting a new Gnome version every half-year, as part of Ubuntu.

This means that I have to migrate from my 18.04.2 LTS system to the
newest Ubuntu version.

Can this be done with do-release-upgrade or something like that? I
really don't want to set up everything from scratch _again_. There's a
lot to setup.


Line wrapping for smart phones - Was: 18.04 LTS installation failure

On Mon, 10 Jun 2019 11:50:20 +0200, Liam Proven wrote:
If somebody should be interested, there's a thread at
<a href="" title=""></a>.

Somebody already posted a screenshot of a smart phone text, that is
broken due to line wrapping at 72 chars.

Unity on Bionic

Hi All

My Netbook had 14.04 > 16.04 > 18.04 all 32 bit

I had always had auto logon so I never noticed that if I clicked the cog wheel
I could still have Unity on Bionic, tried it and seems OK but now the touch pad
and buttons don't work

Remind questions

Is this mailing list ok for refind support type questions?

18.04, enabling the accessibility feature of the window menu's keyboard shortcuts?

One of the accessibility features I liked in 16.04 is window menu's
keyboard shortcuts. Alt-Space followed by one of seven control keys.
18.04 seem to have removed them from the window menu. Can anyone tell me
what has to be done to re-enable them?


Upgrading to kernel 4.18.0-21 HWE and updated Xorg server

I'm thinking about upgrading to the above kernel but would like to make
sure that with the updated Xorg server and other Xorg files. Will I
have any issues if I have to drop back to the current 4.15 kernel?

This is a Dell Optiplex 780. If more information is needed just let me
know please.

Unable to login to GNOME Shell xorg session while Wayland session works properly

Hello and thanks in advance for help.

system: Ubuntu 19.04, fully updated, GDM3 only with GNOME Shell,
installed by netinstall image.

GNOME Shell on xorg was working well for weeks, until I installed the
GNOME flashback session (packages: gnome-session-flashback, gnome-
flashback, gnome-flashback-common) or "Applications Menu" the GNOME
Shell extension via GNOME Software from

** I can login to the Wayland session without any problem.

Resizing partition

Hello I have osx installed with Ubuntu and am wanting to resize my main ubuntu partition. gparted won’t let me resize my osx partition. Any ideas why or what I should do? Can I resize my osx partition in osx and have more available space be reflected in Ubuntu. Then increase the ubuntu partition?

Kernel problem with scanner


My Canon CanoScan LiDE 220 scanner had worked reasonably well, until a
new kernel has been installed. It went into stop-and-go mode, and made
funny noises. This is worse in higher resolutions.

I had a notion that it might be a problem with USB, which in turn
resides in the kernel. I was right. The most current kernel, which has
been installed, was version 4.15.0-50. The previous one (which still
is available) was version 4.15.0-48. I tried that version, and the
problem went away.

Will this message be read and the problem fixed?



Periodically snapd seems to hammer my SSD drive for very long periods.
Killall snapd solves this for a while without any apparent effect on the
rest of my system, but it comes back eventually.

Is it OK to remove snapd altogether? Would I lose any important

- Richard.

OT? hardware recommendation?

I'd like to connect an ethernet 10GB port to en external usb3 hub and
can't see a bit on ebay to do this, anyone have a pointer?

Overall I have only a rj-45 socket for i/o to an external HD with a
usb3 connection, that's the issue I want to address. Seems as if it
should be cheap and easy but I can't seem to find one.



Debmirror: *remove* a distro version

I current have a local mirror that is maintained with a daily run of
debmirror. Right now, three versions of Ubuntu are maintained: 14.04, 16.04,
and 18.04. Sometime soon, I am going to drop 14.04. Because of the way the the
Ubuntu mirror is structured (all of the package files for all three versions
are in a single tree of package files), I am not sure how to remove just the
(older) 14.04 versions. With CentOS, this is easy, since its repo is
structured having a separate tree for each major version and removing version
is just a single rm -rf command for that verison's tree.

Re: UBUNTU OSX partition

01 June 2019 at 13:33, Liam Proven wrote:
Re: UBUNTU OSX partition (at least in part)

It does (sort of) you would need "apfs-fuse"

you need to compile it from source, but there are simple to follow newbie
friendly step-by-step instructions

Ubuntu 18.04: systemd-resolved -- crashing or failing to start properly...

I have an *intermittent* problem with systemd-resolved. It is either crashing
or fails to start properly. The sympton is that when I go to do an update (eg
apt-get update), I get name resolver errors to the *local* (LAN only) mirror
host. Doing a "systemctl restart systemd-resolved" cures the problem. I am not
sure exactly what is going on, but it appears that for some reason
systemd-resolved is not seeing (or using) the *local* LAN DNS server (bind9
running on a CentOS 6 server).

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