unistalling software on ubuntu server 18.04

i need help to uninstall mattermost on ubuntu server 18.04

first of all here is how i installed the app:

wget https://releases.mattermost.com/5.1.0/mattermost-5.1.0-linux-amd64.tar.gz

Extract the Mattermost Server files.

tar -xvzf mattermost*.gz

Move the extracted file to the /opt directory. sudo mv mattermost /opt

Create the storage directory for files. sudo mkdir /opt/mattermost/data

….. Now i tried to unsinstall it using: sudo apt autoremove –purge mattermost

and it didn’t work.(error: unable to locate package mattermost)

Configure Ubuntu 18.04.3 with Intel AX200

I recently received a new ThinkPad P1 Gen 2 Laptop with an Intel AX200 Network Adapter and installed Ubuntu 18.04.3 LTS. Ubuntu didn’t recognize the adapter right off the bat (“No Wi-Fi Adapter Found”), so I searched around and saw the AX200 is supported starting in Linux 5.1, meaning my version falls short:

$ uname -rs Linux 5.0.0-23-generic

I read thru a bunch of posts surrounding similar problems which all pointed towards backport as a solution, so I followed the instructions on the bottom of this page in the “How to install the driver” section (and reproduced in this post). I had no problems with the install, but nothing has changed after rebooting: still no wireless adapter found.

I’m out of ideas at the moment. Does anyone see what I’ve done wrong or have ideas for other solutions?

ubuntu proxy internet configured on file /(etc/apt/apt.conf) but still not working 16.04

i am having issue when configuring proxy configuration. I have done these steps but still it is not working.


Acquire::http::proxy “”; Acquire::ftp::proxy “”; Acquire::https::proxy “”;

then return to main and execute these commands

export http_proxy= export https_proxy=

when i run command env | grep proxy, it shows the proxy setting.

Can you please help me to resolve the issue.

Reconfigure the network on Ubuntu 18.04

Hello everyone I have a problem for more than 5 days I changed my server from one carrier to another to increase the speed of the Internet on the server But I have to reconfigure the network and get the information on the server’s hard drive But I don’t know what to do In addition, the server company does not provide technical support in software can you help me

Ubuntu Bionic Boot Failure googleapis

I recently updated my laptop that has Ubuntu installed on it to hopefully update it to 18.04 but upon boot I got stuck on something like, “Holding Gnome”, I forget what it was. But now I’m in the recovery mode root console and when I type

apt-get update 

I get

Err:1 https://storage.google.apis.com/bazel-apt stable InRelease    Could not resolve 'storage.google.apis.com' Reading package lists... Done W: Failed to fetch https://storage.googleapis.com/bazels-apt/dists/stable/InRelease Could not resolve 'storage.googleapis.com' W: Some index files failed to download. They have been ignored, or old ones used instead. 

I don’t know what to do from here. I was getting other linux-generic issues but I think I fixed those and now I’m stuck with this one. Any suggestions?

nouveau stalled at ffff . -e rror message while trying to convert windows 10 laptop to Ubuntu

i am trying to convert my old gaming msi laptop into a Ubuntu machine.

i followed this tutorial and downloaded and installed ubuntu on a boostable USB.

i then shut my pc and restart it. The Ubuntu start up but then stops with the following message:

nouveau 000:01:00.0 tmr:  stalled at ffff 

Abnormal screen display of ubuntu studio

So I have this problem before .. I already tried Ubuntu Desktop yeah its cool it works fine on my Laptop .. but I want more than that .. for me The best of ubuntu is the Ubuntu Studio because I love multimedia and love editing .. So I tried this flavor of Ubuntu before the Desktop , and I got this problem . and now same problem still exist that’s why I’m here for some answers or advice .. I reformatted my HP laptop AMD Ryzen 3 and tried this ubuntu studio .. anyone can help me ? any idea?

Ubuntu on NVMe SSD, many errors after ‘apt upgrade’


  • Did update BIOS (MB: Asus Z390-F)
  • Did update NVMe SSD firmware (Samsung 970 EVO Plus, 500G)
  • Did run memtest86 for hours (after the problems happened: is OK)
  • The MB (motherboard) has nothing else (no CD, no graphic card…)

Ubuntu install ( The SSD was supposed to be dedicated to Ubuntu 18.04 )

  • Installed fresh Ubuntu 18.04.3
  • Selected “Update while installing” + “Install 3rd party drivers…”
  • Did manual partitioning, all ext4 (then tried also “Erase disk and install”)
  • → Install had a “crash”, is “sorry” and “click to reboot”

So, tried again, the whole thing, without “Update while installing” & “Install 3rd party drivers…” (removed the network to be sure)

  • this time it went through
  • Then did apt update ; apt upgrade
  • Reboot
  • Then after a while, using Ubuntu GUI, suddenly pages and pages of that

enter image description here

get displayed. Had to reset the PC.

My thoughts were for the NVMe SSD… but…

Windows 10 trial-install. So I installed Windows 10 (the free ISO) to confirm the problem is the SSD (Samsung supports only Windows)

  • taking the whole disk,
  • creating as many partitions as what was on Ubuntu
  • did the MS updates
  • did a stress test on all partitions, copying files over and over, filling the partitions
  • rebooted many times
  • → No errors anywhere, nothing in the s.m.a.r.t log (Samsung magician)

Therefore, it seems hard to blame the SSD.

Ubuntu 19.04 install. Then, on the data partitions created in Windows (except the one where Windows is) I installed Ubuntu 19.04 (not 18.04), thus these parts went from ntfs to ext4.

  • All went fine
  • Did apt update && apt upgrade
  • Reboot
  • Using Ubuntu,
  • → then same as before, pages and pages of the same pic above
  • → Reboot: goes to Grub “shell”

Booting (from BIOS) to Windows is OK. Ubuntu boot goes to grub shell.

Not sure what to do next …

  • could be that the Ubuntu upgrade affects Grub (due to NVMe SSD)?
  • could be a bad SSD, but in that case why Windows has no problem?
  • both 18.04.3 and 19.04 use the kernel 5.0.x, could that be linked to the problem?

Ubuntu dual boot window 10 dissappear, with only window boot manager in automatic repair

I have tried these solutions and looked for others but they didnt work. 1) Update grub in terminal. 2) Boot repair in usb and select recommended repair

I dont really know what to do to get back my window 10 and I am a total newbie at this. After Boot repair, My GNU grub only shows ubuntu, advanced option for ubuntu, window bootmanager which always lead me to automatic repair failed, and some other window recovery that doesnt work as well.

My window is in /dev/sda3 but I cant find it on my grub.

I can leave my report in boot repair. https://pastebin.com/KGfFK3B1 Hope someone can kindly help me out I would be extremely grateful to you.