I like fresh, reproducible installs when a new version of your preferred Linux distro (in my case openSUSE) comes out. Ensuring the perceived (!) feeling that a system is a “clean” state is hard enough during its lifecycle already and ensuring it is so after doing an upgrade installation is even harder. That’s why I… Continue reading Introducing a custom Yast module for importing libvirt configuration files from existing installations
I don’t know yet if it’s really a bug or not but I’ve seen some weird behavior while trying to programmatically set up a VM in EFI mode with libvirt which involves a blank VM console unless I explicitly disable suspend-to-mem for the EFI firmware.
The enterprise world is one that is fond of funny, crappy hardware gadgets such as KVM (Keyboard-Video-Mouse) switches, often in the matrix variant: you have one or more consoles connected matrix-style to different computers, for the obvious benefit of not having to connect keyboard, mouse and monitor when needed let alone have a set connected… Continue reading Why your kernel’s drm.edid_firmware parameter doesn’t work anymore in libvirt environments
Getting your custom OS installation ISO to boot from both DVDs and USB sticks is but the first step in making the whole installation working from USB sticks as well. There can still be unexpected pitfalls in the course of the installation process as I encountered yesterday and while my experience was with a specific… Continue reading Consistent udev storage names during and after OS installation: when minimal is too minimal
This may seem to some of you like a blast from a long forgotten past but that’s what an Enterprise world often looks like: I’ve been seeing scripting that creates a custom Linux installation ISO from given public images, adds extra software repositories, install automation, provisioning for delegating to a dedicated config management tool (Puppet,… Continue reading Recreating ISOs that boot from both DVD and mass storage such as USB sticks and in both legacy BIOS and UEFI environments
In a previous post I described the Mikrotik hAP lite (RB941-2nD-TC) and its RouterOS and already suggested that I prefer to run OpenWrt on it. Because Mikrotik routers behave a bit different than the usual TP-Link, GL.iNet etc. devices and because there were some pitfalls I had to master myself, here’s some advice to keep… Continue reading Bringing OpenWrt to the Mikrotik hAP lite (RB941-2nD-TC)
In a small series on rspamd configuration I did back in August last year I had a diagram illustrating the configuration file structure of the then-current rspamd version.
The MikroTik hAP lite (RB941-2nD-TC) is the result of my search for a cheap but maintained/maintainable LAN router. In this post I’m going to introduce it in a bit more detail for the curious reader.
Recently I’ve been tasked with the problem of finding a router that had to fulfill five key requirements: it had to offer in total four to five LAN ports, have an internal or a detachable Wifi antenna (if at all), offer a maintained/maintainable firmware, be compact and, most of all, better be cheap, for a… Continue reading Choosing a cheap but maintained/maintainable LAN router
While working on my python-netsnmpagent project, I regularly smilint the MIBs used for conformance with the SMI spec to ensure they are proper MIBs.