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Questions tagged [18.04]

New questions about 18.04 are now off-topic, unless asking how to update to a supported version. Seventh LTS (Long Term Support) release of Ubuntu, code-named "Bionic Beaver". Released on April 26, 2018. Reached End of Standard Support (ESS) in April 2023.

Ubuntu 18.04 (Bionic Beaver) was released on April 26, 2018 and entered ESM in April 2023.

New questions on Ubuntu 18.04 are off-topic, unless you are asking how to upgrade to a version in current standard support.

Release notes: Bionic Beaver

  • Two years of support included hardware updates
  • Remaining three years consisted of maintenance upgrades.

Notable new features:

  • Linux kernel 4.15
  • Preliminary support for WiFi 6 (802.11ax)
  • BTRFS swap file support
  • ifupdown has been deprecated in favor of netplan.io and is no longer present on new installs

Flavors and editions:

Ubuntu Flavors available under 18.04 LTS:

Ubuntu 18.04 LTS variants are not commercially supported by Canonical.

Ubuntu Editions available under 18.04 LTS:

Ubuntu releases:

15460 questions
103
votes
4 answers

System program problem detected?

I keep getting, since several days, "System program problem detected" error message: I always clicked on Report problem button but nothing happens. I also run update and upgrade everyday. What causes this ? How to get rid of it ?
Billal Begueradj
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60
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7 answers

Host name reverts to old name after reboot in 18.04 LTS

This may be related to running 18.04 LTS as a virtual machine (Host is Win 2016 DC) but I can't figure it out how. I have tried every method of I know of to change the hostname but it always reverts to the hostname I entered when I built the…
Andy Wylde
  • 601
49
votes
2 answers

Anydesk remote server display not supported e.g Wayland

I downloaded Anydesk (4.0.1 64bit) on both my laptop and desktop and when I run it from one pc and try to connect to the other I get the following error remote server display not supported e.g Wayland. Both PCs are running Ubuntu 18.04.2. I tried…
Konstantinos A
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37
votes
9 answers

Ubuntu 18.04: Authentication Error on loging after lock

I'm on Ubuntu 18.04 and since today whenever I lock my system and try to log back in using my password, it shows the 'in progress' spinner for few seconds then I get the error message "Authentication error". I can successfully log in on the first…
Harshil Sharma
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24
votes
6 answers

dual boot no efi system partition was found

I am trying to install ubuntu along side with windows 10, following the official instructions given at [install ubuntu 18.04] https://vitux.com/how-to-install-ubuntu-18-04-along-with-windows-10/. Here are screen shots of storage management (I have…
jingweimo
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22
votes
2 answers

org.freedesktop.PolicyKit1 was not provided by any .service files

I need some help with the PolicyKit1 thing. I'm running mastodon (joinmastodon.org) on Ubuntu 18.04 server and I'm not able to start back the services. When I run systemctl start mastodon-web mastodon-sidekiq mastodon-streaming I get this: Failed to…
Adrian
  • 323
18
votes
19 answers

Ubuntu 18.04 on login loop, even with correct password

I installed Ubuntu 18.04 yesterday, done some app installation and configurations and went to sleep. This morning, the login simply didn't work: the system is unable to log into my session, even with the correct password. Every time I try it, it…
wowbagger
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18
votes
2 answers

17.10 to 18.04 upgrade freezes during boot

I just took a working Gateway P4 desktop computer and upgraded it from 16.04LTS all the way to 17.10 without any problem. As soon as I tried to install 18.04LTS, I had trouble booting. I've reinstalled in many different ways, with no improvement in…
heynnema
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17
votes
2 answers

sudo modprobe v4l2loopback modprobe: ERROR: could not insert 'v4l2loopback': Bad address

When I follow the steps of Using a digital camera ( Canon) as webcam My linux is Ubuntu 18.04 I have an error with the following command : sudo modprobe v4l2loopback modprobe: ERROR: could not insert 'v4l2loopback': Bad address I found nothing at…
Eric Reboisson
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16
votes
1 answer

Mounting /cow on root failed: Invalid argument overlay mount failed

I am using an xps 13 9365, which was data wiped from bios by a friend who then gave it to me thinking it was dead. I tried booting with a USB (current LTS distro (18.04 or similar)) boot disk and got into the language selection / setup menu. By…
Craig Cammann
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16
votes
4 answers

Boot problem after update - missing 'lowerdir'

My Ubuntu 18.04 updated last night and now when I boot the system up it shows this message: aufs aufs_fill_super:912:mount[1089]: no arg overlayfs: missing 'lowerdir' Any clues?
Gabriel Panza
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16
votes
2 answers

Ubuntu 18.04 Pulse secure won't start

I am trying to understand why Pulse secure installed via Debian package is not starting at all. I am able see it in the GUI menu, when clicked the Menu disappears and now the application should start, but it doesn't. In terminal with Sudo access I…
gkamboj
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16
votes
4 answers

Postman not launching anymore in 18.04

I downloaded postman tar from the official website and extracted the files, just like I did it the exact same way when I was using Ubuntu 16.04. Extracting is working but When I want to launch the application by double clicking the executable, it is…
SebastienPattyn
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15
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3 answers

Version `CURL_OPENSSL_3' not found

I have just upgraded from Ubuntu 16.04 to 18.04. It seems to work fine (problems of AMD drivers fixed) though it seems the upgrade broke CURL that is used by my Ruby on Rails gem CURB. When I start the Puma server I get this error :…
Maxence
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15
votes
3 answers

Ubuntu 18.04 too slow

I migrated to Ubuntu 18.04 a week ago due my VPN needs, and it works perfectly except that the OS is too slow and I sometimes can't open any applications until I reboot. My laptop has good hardware (a seventh-generation Intel Core i7 and 8 GB of…
JRH
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