Tagged with #linux

40 results found.

elementaryOS 6 refresh

Sander November 12, 2021 at 4:50 am

I refreshed the olde Thinkpad to elementaryOS 6, and thought it would be useful to me and others to document the process.

As they don't support an upgrade from elementaryOS 5, I backed up my repositories using repoman and paved the rest, as I use this laptop for side-projects and have a sync solution in place.

The first install resulted in a black screen (perhaps it went into standby and did not respond to mouse or keyboard presses), but a restart continued the installation successfully. Further OS setup was straightforward and simple. I thought about creating a /home partition but as I was happy with my migration process I decided to go with the convenient default.

The first app to install I had to get from FlatHub, which is nicely integrated. This first flatpakref loaded on the second try and installed using the integration included in the OS.

Syncthing's introducer feature allows a device to introduce shares to connected devices and this helps setting up the shared folder containing my new-device scripts. It's important to untick "Receive only" so that it's a two way sync.

This post will be updated as more thoughts become available.

#elementaryos #linux #technology
Auto-Update Nextcloud

Sander March 16, 2020 at 3:20 pm
I run my own Nextcloud server, and every other week there's an update to the server, or one of the plugins I've enabled. The following steps enable automatic updates to the Nextcloud server.

This assumes Nextcloud is installed under /var/www/nextcloud:

Add a scheduled task as the webserver user:

$ sudo -u www-data crontab -e

Add the following line to run the upgrade script once a day at 4:05am. Instead of running the upgrade process directly we run a script so that we can also run it from the shell if needed:
```
5     4  *  *  * cd /var/www/nextcloud && ./upgrade.sh
```
Now create the script and make it executable:
```
$ cd /var/www/nextcloud
``` ```
$ nano upgrade.sh && sudo chmod +x upgrade.sh 
```
The script itself runs the server updater, the no-interaction argument prevents prompting for questions, followed by the occ utility to update all installed apps.
```
 pushd $(dirname $0)/updater /usr/bin/php updater.phar --no-interaction cd ..; ./occ app:update --all popd
```
```
#linux #nextcloud
```
Sander August 16, 2019 at 9:23 am

It turns out if you enable the otherwise amazing Gnome Tweaks " Keyboard & Mouse > Pointer Location" setting then all your keyboard shortcuts using CTRL require doubling up, took me a week to figure that one out! #Linux on the desktop.
How to install the NVIDIA drivers on Ubuntu 18.04

Sander August 6, 2019 at 2:14 pm
How to install the NVIDIA drivers on Ubuntu 18.04
```
sudo ubuntu-drivers autoinstall
```
If this fails because of a dependency that won't be installed, use apt for both the driver and the dependencies. #ubuntu #linux

Fixing Virtualbox host network adapter cannot be created error

July 27, 2019 at 10:07 am

If when trying to start a vm, for example using vagrant, you get the error message that the host network adapter cannot be created:

There was an error while executing `VBoxManage`, a CLI used by Vagrant<br></br>for controlling VirtualBox. The command and stderr is shown below.<br></br><br></br>Command: ["hostonlyif", "create"]<br></br><br></br>Stderr: 0%...<br></br>Progress state: NS_ERROR_FAILURE<br></br>VBoxManage: error: Failed to create the host-only adapter<br></br>VBoxManage: error: VBoxNetAdpCtl: Error while adding new interface: failed to open /dev/vboxnetctl: No such file or directory<br></br>VBoxManage: error: Details: code NS_ERROR_FAILURE (0x80004005), component HostNetworkInterfaceWrap, interface IHostNetworkInterface<br></br>VBoxManage: error: Context: "RTEXITCODE handleCreate(HandlerArg*)" at line 94 of file VBoxManageHostonly.cpp

Make sure to first start the virtualbox GUI application. It does some extra checks, and sometimes highlights the permission problem:

In my case (OpenSuse 15.1 Leap), my user was not added to the vboxusers group. Via Yast > Users and Security .... and editing my user account it was a simple checkbox away. Remember to relog.

If that doesn't work, reloading the kernel extensions could help:

$ sudo dpkg-reconfigure virtualbox-dkms$ sudo dpkg-reconfigure virtualbox $ sudo modprobe vboxdrv $ sudo modprobe vboxnetadp



#opensuse #virtualbox #linux #vagrant

Countdown - a bash countdown timer

May 1, 2019 at 11:40 am

I was looking for a tea timer countdown but quickly realised I might as well use a countdown script for this. I based my script on the linked script but added a customizable notification at the end

$ nano ~/bin/countdown

#!/bin/bash<br></br># v2 - 2019-05-01<br></br>secs=$1<br></br>msg=${2:-$1 seconds passed.}<br></br>while [ $secs -gt 0 ]; do<br></br>   echo -ne "$secs\033[0K\r"<br></br>   sleep 1<br></br>   : $((secs--))<br></br>done<br></br>notify-send 'Countdown Finished' "$msg"<br></br><br></br>

$ chmod +x ~/bin/countdown<br></br>$ countdown 180 "Tea is ready."

#linux

Spotify how to hide the "Find friends" bar

Sander January 16, 2019 at 12:13 pm

On Linux operating systems, Spotify does not always show the file and view menus. This makes it harder to hide the "Find Friends" bar as there is no close button on the sidebar itself.

However there's another way: Click on the chevron in the top right corner next to your spotify username, then on Settings > Display Options > untick Show Friend Activity.

#linux #howto

Install Python 3.7.1 on OpenSUSE Tumbleweed

December 11, 2018 at 1:11 pm

After another hour of resolving issues with pyenv and a personal project that requires Python 3.7 I thought it best to note the steps I used to install Python 3.7.1 on OpenSUSE Tumbleweed:

# Install requirements for compiling Python
sudo zypper in zlib-devel bzip2 libbz2-devel libffi-devel libopenssl-devel readline-devel sqlite3 sqlite3-devel xz xz-devel 

# Compile Python
cd ~/Downloads
wget <a href="https://www.python.org/ftp/python/3.7.1/Python-3.7.1.tar.xz" target="_blank">https://www.python.org/ftp/python/3.7.1/Python-3.7.1.tar.xz</a>
tar xf Python-3.7.1.tar.xz
cd Python-3.7.1
./configure
make

# AltInstall ensures 3.7.1 is installed alongside your system python
sudo make altinstall

# Fix dynamic library loading
sudo ln -s /usr/local/lib64/python3.7/lib-dynload /usr/local/lib/python3.7/lib-dynload

I've updated the Common build problems · pyenv/pyenv Wiki page to reflect the updated required packages. Thanks to Andrew Cooke for the dynamic library fix

#python #linux

Howto install Cryptomator for OpenSuse

Sander November 3, 2018 at 11:51 am
Linux is so userfriendly, so the rpm that can be downloaded is missing dependencies. However, I'm quickly becoming a fan of zypper and OpenSUSE's dependency handling, and comes to the rescue:
```
sudo zypper in cryptomator.rpm
```
Even though cryptomator made a mistake in signing part of the application, it can still be installed by pressing ignore. Are you sure you want to do that? It seems a bit crap for such an essential utility.

#linux
Installing Dropbox on OpenSUSE Tumbleweed

Sander November 3, 2018 at 11:45 am
Both the official RPM and the discover package failed for me due to missing dependencies, without specifying what those are. However the following worked:
```
sudo zypper install dropbox-cli
dropbox start -i
dropbox autostart
```
#linux