Author: Daniel

SAP IGS

Sometimes still needed, the SAP IGS is a pure source of joy.. The Internet Graphics Service (IGS) helps to display graphics in an Internet browser. It’s used eg. in HTML GUI or Web Dynpro ABAP/Java and “provides a server architecture where data from an SAP system or another source can be used to generate graphical or non-graphical output.” The component...

VSCode devcontainer (part 1)

Coding SAP is Eclipse based ADT, it’s Business Application Studio and.. oh sure it’s VSCode. I’m playing around with CDS, UI5 and CAP. But – and this is important – i don’t want to pollute my system with strange dependencies like npm (see here). But there is a solution for that.. – using devcontainers in VSCode. What is a Devcontainer?...

invalid or corrupted package (PGP signature)

Problem: On arch-update via pacman the following error occurs: Error: rubberband: signature from “David Runge ” is marginal trust :: File /var/cache/pacman/pkg/rubberband-3.0.0-2-x86_64.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)). Do you want to delete it? [Y/n] n error: failed to commit transaction (invalid or corrupted package) Errors occurred, no packages were upgraded. -> error installing repo packages Steps taken:...

Lighttpd on arch

lighttpd, PHP, MariaDB https://wiki.ubuntuusers.de/lighttpd/ https://redmine.lighttpd.net/projects/lighttpd/wiki/TutorialConfiguration Installation pacman -S lighttpd pacman -S php php-cgi mariadb mariadb-clients mariadb-install-db –user=mysql –basedir=/usr –datadir=/var/lib/mysql Infos: Two accounts: root@localhost, mysql@localhost To start mysqld at boot time you have to copy support-files/mysql.server to the right place for your system You can start the MariaDB daemon with: cd ‘/usr’ ; /usr/bin/mysqld_safe –datadir=’/var/lib/mysql’ You can test the MariaDB daemon...

Set Default Kernel entry in GRUB2

Problem: After installing Wireguard in Ubuntu 18.04. the kernel vesrion 5.3.0.1026.13 (linux-image-gke-5.3) is automatically installed, as well. However on my system it broke several things like display-resolution and keyboard… So i’d like to reset the former kernel linux-image-generic 4.15.0.106.94 as the new default kernel in GRUB 2 again. Solution: 1) Backup grub config file: > sudo cp /etc/default/grub /etc/default/grub.bak 2)...

This is not an exit

it’s just a collection of personal notes. The primary audience is not the public. it’s just for me and myself. If anybody else stumble upon this and can gain something it’s also fine.