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Rule #1: “Do not fix, if it’s not broken”
I’ve had version phpMyAdmin 5.0.2 since 2020 without any problem (PHP 7.+, 8.0) until I decided to look at PHP 8.1. Number of “Deprecated” messages from twig/twig package just killed the system, and Composer failed to update outdated packages.
Rule #2 extends #1: If you do not have a VERY GOOD REASON to use PHP 8.1, stay with the current version
Let’s Encrypt Apache on Raspberry Pi
To install let’s encrypt using “Apache on PIP“
sudo apt install python3 python3-venv libaugeas0 sudo python3 -m venv /opt/certbot/ sudo /opt/certbot/bin/pip install --upgrade pip sudo /opt/certbot/bin/pip install certbot certbot-apache sudo ln -s /opt/certbot/bin/certbot /usr/bin/certbot
Next command will ask for:
— e-mail
— space or comma separated domain names
— config file (e.g. 000-default-le-ssl.conf)
sudo certbot --apache
You can check renewal:
sudo certbot renew --dry-run
Install/Upgrade Composer on Raspberry OS
To install/upgrade the Composer:
- make sure you are in the home directory (cd ~)
- download the installer
- [optional] verify the installer (the line is commented, check the current hash from the Composer website)
php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
# php -r "if (hash_file('sha384', 'composer-setup.php') === 'dac665fdc30fdd8ec78b38b9800061b4150413ff2e3b6f88543c636f7cd84f6db9189d43a81e5503cda447da73c7e5b6') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"
Logitech’s Unifying Receiver on Linux
- Tested on Mint, all 64 bit distros for Raspberry Pi
- Shows options and state for all devices connected only (!!) for the root user
sudo apt install solaar
Source: ‘Solaar’ Lets You Manage Logitech’s Unifying Receiver on Linux – OMG! Ubuntu
Missing Python Idle
It’s missing as the most of tools and applications in Pi 64-bit Buster, so far (Sep 2020), but it could be handy. So, idle3 could be back with:
sudo apt install idle
Source: Missing Python 3 Idle in the Programming Menu – Raspberry Pi Forums
Woodworm: Remote Desktop (XRDP)
Unable to create directory
the title was “WordPress: Unable to create directory”, but unfortunately, error “unable to create directory” occurred with trying to add theme, plugin, media file, update WordPress or any other websites uploaded with sftp
First step is to add the current user to the group www-data (Apache):
sudo gpasswd -a "$USER" www-data
sudo chown -R “$USER”:www-data /var/www – not sure in this step
Change the rights for group for modifications and executions
(more…)Change default Python version (Obsolete)
Change to default python3 version on Raspberry Pi OS:
sudo update-alternatives --install /usr/bin/python python /usr/bin/python2.7 1 sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.7 2 # check the list sudo update-alternatives --list python /usr/bin/python2.7 /usr/bin/python3.7 # Change the default version sudo update-alternatives --config python There are 2 choices for the alternative python (providing /usr/bin/python). Selection Path Priority Status ------------------------------------------------------------ * 0 /usr/bin/python3.7 2 auto mode 1 /usr/bin/python2.7 1 manual mode 2 /usr/bin/python3.7 2 manual mode Press <enter> to keep the current choice[*], or type selection number: # now Python 3 is default python Python 3.7.3 (default, Jul 25 2020, 13:03:44) [GCC 8.3.0] on linux Type "help", "copyright", "credits" or "license" for more information. >>>
Source: Change default python version on Raspbian GNU/Linux – LinuxConfig.org
Setup Samba Server on Raspberry Pi
Install pgAdmin 4 on Debian Buster
Make sure you have the latest version of pip
python3 -m pip install --upgrade pip
Create the virtual environment
python3 -m venv pgadmin4(more…)