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Archive for 2021

Debian bullseye: changes in util-linux #newinbullseye

Monday, July 5th, 2021

Continuing with #newinbullseye. One package that isn’t new but its tools are used by many of us is util-linux, providing many essential system utilities. There is util-linux v2.33.1 in Debian/buster and util-linux v2.36.1 in Debian/bullseye, and as usual there are many new features and options available. I don’t want to replicate the release notes provided […]

Bookdump 02/2021

Monday, July 5th, 2021

Bücher, die ich in 2021 seit meinem letzten Bookdump gelesen habe: Abenteuerliche Reise durch mein Zimmer, Karl-Markus Gauß. Auf den 221 Seiten begleitet man den Autor bei Geschichten, die es zu den unterschiedlichsten Gegenständen in seiner Wohnung in Salzburg zu erzählen gibt, blickt mit ihm auf die Geschichte seiner Familie wie auch seine Büchersammlung, und […]

efivars is gone with Debian/bullseye #newinbullseye

Wednesday, June 9th, 2021

Continuing with #newinbullseye, it’s worth being aware of, that efivars is gone with the kernel version shipped as of Debian/bullseye. Quoting from wiki.debian.org/UEFI: The Linux kernel gives access to the UEFI configuration variables via a set of files under /sys, using two different interfaces. The older interface was showing files under /sys/firmware/efi/vars, and this is […]

What to expect from Debian/bullseye #newinbullseye

Thursday, May 27th, 2021

Debian v11 with codename bullseye is supposed to be released as new stable release soon-ish (let’s hope for June, 2021! :)). Similar to what we had with #newinbuster and previous releases, now it’s time for #newinbullseye! I was the driving force at several of my customers to be well prepared for bullseye before its freeze, […]

A Ceph war story

Friday, April 9th, 2021

It all started with the big bang! We nearly lost 33 of 36 disks on a Proxmox/Ceph Cluster; this is the story of how we recovered them. At the end of 2020, we eventually had a long outstanding maintenance window for taking care of system upgrades at a customer. During this maintenance window, which involved […]

Bookdump 01/2021

Friday, April 2nd, 2021

Bücher, die ich in 2021 bisher gelesen habe: Sei Kein Mann, von JJ Bola. Auf 149 Seiten schreibt der Autor und Aktivist JJ Bola über Einflüsse aus nichtwestlichen Traditionen, aus Popkultur und der LGBTQ+-Community und zeigt, wie vielfältig Männlichkeit sein kann. Kluge Worte. Die Katze des Dalai Lama, von David Michie. David Michie hat eine […]

How to properly use 3rd party Debian repository signing keys with apt

Tuesday, February 16th, 2021

(Blogging this, since this is a recurring anti-pattern I noticed at several customers and often comes up during deployments of 3rd party repositories.) Update on 2021-02-19: clarified, that Signed-By requires apt >= 1.1, thanks Vincent Bernat Many upstream projects provide Debian repository instructions like this: curl -fsSL https://example.com/stable/debian.gpg | sudo apt-key add – Do not […]

Revisiting 2020

Saturday, January 16th, 2021

Mainly to recall what happened last year and to give thoughts and plan for the upcoming year(s) I’m once again revisiting my previous year (previous editions: 2019, 2018, 2017, 2016, 2015, 2014, 2013 + 2012). Due to the Coronavirus disease (COVID-19) pandemic, 2020 was special™ for several reasons, but overall I consider myself and my […]

Mein Lesejahr 2020

Wednesday, January 6th, 2021

In 2020 habe ich in meinen Bookdumps versucht, kurze Reviews zu den von mir gelesenen Büchern zu geben (wobei sich das auf Belletristik- und Sachbücher beschränkt, also keine Fachbücher bzw. IT-Bücher). Dazu erschienen 2020 folgende Bookdumps: Bookdump 1/2020 Bookdump 2/2020 Bookdump 3/2020 Bookdump 4/2020 Bookdump 5/2020 Die Reviews helfen mir beim Erinnern an die gelesenen […]

Bookdump 05/2020

Tuesday, January 5th, 2021

Bücher, die ich in 2020 seit meinem letzten Bookdump gelesen habe: Die Möglichkeit einer Insel, von Michel Houellebecq. Dieses Buch spielt in 443 Seiten mit zwei unterschiedlichen Zeitebenen. Einmal ca. im Jahr ~2000 in der ersten Generation (Daniel1), und einmal rund um das Jahr 4000 in der 24. und 25. Generation des Protagonisten Daniel (Daniel24 […]