Update of 18.10 fails with python FileNotFoundError

I cannot update my 18.10 any longer, see error below. The solutions offered to similar questions Problem with sudo apt update in Ubuntu 18.04 and Error occur during updating through sudo apt, did not help. The errors described there are slightly different.

Maybe my interupted upgrade to 19.04 a while back could have caused this? I am on ARMBIAN 5.60 stable Ubuntu 18.10 4.14.70-cubox

sudo apt update Hit:1 http://ports.ubuntu.com disco InRelease Hit:2 http://ports.ubuntu.com disco-security InRelease Hit:3 http://ports.ubuntu.com disco-updates InRelease Hit:4 http://ports.ubuntu.com disco-backports InRelease Traceback (most recent call last):                   File "/usr/lib/cnf-update-db", line 26, in <module>     col.create(db)   File "/usr/lib/CommandNotFound/db/creator.py", line 93, in create     self._fill_commands(con)   File "/usr/lib/CommandNotFound/db/creator.py", line 127, in _fill_commands     self._parse_single_commands_file(con, fp)   File "/usr/lib/CommandNotFound/db/creator.py", line 165, in _parse_single_commands_file     suite=tagf.section["suite"] KeyError: 'suite' Error in sys.excepthook: Traceback (most recent call last):   File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 145, in apport_excepthook     os.O_WRONLY | os.O_CREAT | os.O_EXCL, 0o640), 'wb') as f: FileNotFoundError: [Errno 2] No such file or directory: '/var/crash/_usr_lib_cnf-update-db.0.crash'  Original exception was: Traceback (most recent call last):   File "/usr/lib/cnf-update-db", line 26, in <module>     col.create(db)   File "/usr/lib/CommandNotFound/db/creator.py", line 93, in create     self._fill_commands(con)   File "/usr/lib/CommandNotFound/db/creator.py", line 127, in _fill_commands     self._parse_single_commands_file(con, fp)   File "/usr/lib/CommandNotFound/db/creator.py", line 165, in _parse_single_commands_file     suite=tagf.section["suite"] KeyError: 'suite' Reading package lists... Done E: Problem executing scripts APT::Update::Post-Invoke-Success 'if /usr/bin/test -w /var/lib/command-not-found/ -a -e /usr/lib/cnf-update-db; then /usr/lib/cnf-update-db > /dev/null; fi' E: Sub-process returned an error code 

Ubuntu 18.10 to 19.04, end of life version

I am facing this issue when attempting an upgrade to ubuntu 19.04.

Checking for a new Ubuntu release Your Ubuntu release is not supported anymore. For upgrade information, please visit: http://www.ubuntu.com/releaseendoflife  Please install all available updates for your release before upgrading. 

Apparently my release is not supported anymore… which doesn’t allow me to upgrade. Seems like I am stuck.

WiFi connected but can’t reach most sites (18.10)

There is this computer that i got from work, it works well on work’s wifi, but when i bring it home wifi is connected but does not work. All my other devices, including my personal pc works just fine at my wifi.

I can access sites like google, youtube and fast.com, but if i try to ping 8.8.8.8 i get 100% packet loss. Or if i try to access basically any other site it doesn’t work (i get timed out)

Things i tried:

Disabling IPV6.

Adding 8.8.8.8 and 8.8.4.4 to /etc/resolv.conf

screen flickering, turning off, 18.10 Intel

I recently moved my work computer home and hooked it to new monitors. One monitor works perfectly, the other (an AOC monitor connected via displayport) flickers and tears occasionally, and then will put itself to sleep and I have to disconnect/reconnect it to the computer to wake it up.

I never had this problem previously with other Dell monitors at the office. I had the problem with 18.04 so tried updating to 18.10 and the problem persists. I’ve also tried changing the refresh rate to no avail.

This is the output of xrandr:

Screen 0: minimum 320 x 200, current 3840 x 1080, maximum 8192 x 8192 HDMI-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 597mm x 336mm    1920x1080     63.69*+  60.00    60.00    50.00    59.94    24.00    23.98      1920x1080i    60.00    60.00    50.00    59.94      1680x1050     59.88      1600x900      60.00      1280x1024     75.02    60.02      1280x960      60.00      1280x800      59.91      1280x720      60.00    60.00    50.00    59.94      1024x768      75.03    70.07    60.00      800x600       72.19    75.00    60.32    56.25      720x576       50.00    50.00      720x576i      50.00    50.00      720x480       60.00    60.00    59.94    59.94    59.94      720x480i      60.00    60.00    59.94    59.94      640x480       75.00    72.81    66.67    60.00    59.94    59.94      720x400       70.08   DP-1 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 509mm x 286mm    1920x1080     60.00*+  60.00    50.00    59.94      1920x1080i    60.00    50.00    59.94      1680x1050     59.95      1280x1024     75.02    60.02      1440x900      59.89      1280x960      60.00      1280x720      60.00    60.00    50.00    59.94      1024x768      75.03    70.07    60.00      832x624       74.55      800x600       72.19    75.00    60.32    56.25      720x576       50.00    50.00    50.00      720x480       60.00    60.00    59.94    59.94    59.94      640x480       75.00    72.81    66.67    60.00    59.94    59.94      720x400       70.08    HDMI-2 disconnected (normal left inverted right x axis y axis) DP-2 disconnected (normal left inverted right x axis y axis) HDMI-3 disconnected (normal left inverted right x axis y axis) DP-3 disconnected (normal left inverted right x axis y axis) 

And calling lspci | grep VGA gives:

00:02.0 VGA compatible controller: Intel Corporation HD Graphics 530 (rev 06) 

I’m stumped. Any suggestions welcome.

Vypr VPN no more works in 18.10

I have tried to find some solution online, but none has turned up so far, so I ask here: I have a paid VPN connection using VYPR-VPN. After updating to 18.10, I find quite a strange situation:

  • The new network manager widget opens a terminal based program to configure my connections, but there is no VPN option (or is “VLAN” what I need? If yes, it seems quite complicated?).
  • In preferences (main menu) I find a network connection app which actually works as desired (like the ones in the previous lubuntu versions), but whatever I enter there seems to have no influence on the network widget down in the launch bar, and these connections are not offered to me anywhere.

Since I pay for my VPN service, I’d really like to USE it. Does anybody have any idea how to configure my VPN without first having to make a PhD in Linux System Administration? Does it work better in 19.XX? Thanks in advance!

Sound only works via bluetooth 18.10

My laptop was totally fine until I wanted to try some Bluetooth speaker I have, since then I can’t have sound through the laptop speaker or anything connected to the mini-plug connector. I tried several things, re installing pulseaudio alsa-base, deleting and ./config/pulse and restart. I don’t know what else to do. I know the speakers work because I have the laptop on dual boot and they work just fine on windows.

Any explanation for why X fails every couple of weeks ? Ubuntu 18.10

I am running Ubuntu 18.10 on an i7-8 with 32Gb RAM and an NVIDIA RX-2080. We installed and x failed after a while. I had installed NVIDIA drivers. It seemed like the nouveau driver started running, no idea why. A couple of weeks later the resolution suddenly went to hell one morning, and the machine is barely responding.

Now it happened again. We blacklisted the nouveau driver, still didn’t work, re-installed NVIDIA. Now that the machine works again, can anyone explain why this happens, and whether blacklisting is likely to solve this problem? Is there anything else I can do?

Kubuntu 18.10 and Kubuntu 19.04 – Grub Error: Couldn’t find suitable memory target

When installing Kubuntu 18.10 and 19.04, I have run into the issue of seeing a grub error message “couldn’t find suitable memory target” and then after the kernel starts there is kernel panic message of “not syncing: VFS: Unable to mount rooot fs on unknown-block(0,0)” When I downgrade to Kubuntu 17.04 everthing works.

My computer is running a asrock x99 extreme6 with >32G ram with a E5-2690v3 Xeon cpu. The bios is a full UEFI bios with CSM disabled. I have only 1 SSD present in the system and have removed all other storage devices (except for the installation USB drive). I am clicking through the install procedure to make the installation as generic as possible.

I have managed to figure out that the initramfs images of the newer OS distributions are greater than 55M where the the 17.04 Distro initramfs is 41M. Searching around I have found that this is a problem if /boot is full and the kernel is unable to load the initramfs image. However, I am installing from a liveUSB and there are no issues booting the liveUSB and installing from the USB. I have successfully installed 19.04 on my laptop which has 16G of ram and is an older i7.

What does “couldn’t find suitable memory target” actually mean and if its a lack of memory issue, how do I increase the amount of ram for the initramfs image. I am stumped on why the kernel is unable to load the root file system when the UUID is correctly specified via the installer.

What more information can I provide to help properly solve this problem. A google search shows this coming up in previous and much older releases, however, the solutions provided there do not work for my current problem manifestation.

I am not dual booting my desktop but I AM dual booting my laptop that is running Kubuntu 19.04

Thanks.