Posts on Dominik Gedon

Tumbleweed with LUKS2 and Argon2

Sun, 31 Mar 2024 16:01:47 +0200

The steps below show you how to install openSUSE Tumbleweed with LUKS2 and Argon2id as Password-Based Key Derivation Function (PBKDF) when using systemd-boot¹ instead of GRUB2 as bootloader.

Perform an installation with full disk encryption
Select Guided Setup during partitioning the disk and use LVM
Change the bootloader by selecting ‘Booting’ at the top ot the summary screen
Select Systemd Boot as bootloader
After the installation is finished, boot into the rescue system of the installation medium. The LUKS conversion cannot be done while the device is in use.

Apple product prices over time

Mon, 06 Nov 2023 00:00:00 +0000

The following table shows the development of Apple product prices in Germany over time¹.

iPhone

Year	Model	Price [EUR]	Base storage [GB]	Last supported OS
2007	1	contract only	4	iOS 3.1.3
2008	3G	contract only	8	iOS 4.2.1
2009	3GS	519	8	iOS 6.1.6
2010	4	629	16	iOS 7.1.2
2011	4S	629	16	iOS 9.3.6
2012	5	679	16	iOS 10.3.4
2013	5S	699	16	iOS 12.5.7
2014	6	699	16	iOS 12.5.7
2015	6S	739	16	iOS 15.8.5
2016	7	759	32	iOS 15.8.5
2017	8	799	64	iOS 16.7.12
2017	X	1149	64	iOS 16.7.12
2018	XS	1149	64	iOS 18.7.1
2019	11	799	64	current
2020	12	899	64	current
2021	13	899	128	current
2022	14	999	128	current
2023	15	949	128	current
2024	16	949	128	current
2025	17	949	256	current
—-	Pro	—	—	—
2019	11 Pro	1149	64	current
2020	12 Pro	1149	128	current
2021	13 Pro	1149	128	current
2022	14 Pro	1299	128	current
2023	15 Pro	1199	128	current
2024	16 Pro	1199	128	current
2025	17 Pro	1299	256	current
—-	Air	—	—	—
2025	Air	1199	256	current
—-	Mini	—	—	—
2020	12 mini	778	64	current
2021	13 mini	799	128	current
—-	Budget	—	—	—
2013	5C	599	16	iOS 10.3.3
2016	SE 1	489	16	iOS 15.8.3
2018	XR	849	64	iOS 18.7.1
2020	SE 2	479	64	current
2022	SE 3	519	64	current
2024	16e	699	128	current

Watch

Year	Model (size)	Price [EUR]	Requirements	Last supported OS
2015	Series 0 (38)	399	iPhone 5 (iOS 8.2)	watchOS 4.3.2
2016	Series 1 (38)	319	iPhone 5 (iOS 10)	watchOS 6.3
2016	Series 2 (38)	419	iPhone 5 (iOS 10)	watchOS 6.3
2017	Series 3 (38)	369	iPhone 5S (iOS 11)	watchOS 8.8.1
2018	Series 4 (40)	429	iPhone 5S (iOS 12)	watchOS 11.6
2019	Series 5 (40)	449	iPhone 6S (iOS 13)	watchOS 11.6
2020	Series 6 (40)	418	iPhone 6S (iOS 14)	current
2021	Series 7 (41)	479	iPhone 6S (iOS 14)	current
2022	Series 8 (41)	499	iPhone 8 (iOS 16)	current
2023	Series 9 (41)	499	iPhone XS (iOS 17)	current
2024	Series 10 (42)	449	iPhone XS (iOS 18)	current
2025	Series 11 (42)	449	iPhone 11 (iOS 26)	current
—-	Ultra	—	—	—
2022	Ultra	999	iPhone 8 (iOS 16)	current
2023	Ultra 2	999	iPhone XS (iOS 17)	current
2024	Ultra 2	999	iPhone XS (iOS 17)	current
2025	Ultra 3	899	iPhone 11 (iOS 26)	current
—-	Budget	—	—	—
2020	SE 1 (40)	299	iPhone 6S (iOS 14)	watchOS 11.6
2022	SE 2 (40)	299	iPhone 8 (iOS 16)	current
2025	SE 3 (40)	269	iPhone 11 (iOS 26)	current

From Apple’s website via archive.org ↩︎

Migrating to GitHub Pages

Sat, 06 May 2023 21:29:28 +0200

Today I migrated this website from a manual workflow to GitHub Pages. I followed the docs for adding a custom domain, which was to set proper A, AAAA and CNAME records for the domain I want to use and enable GitHub pages for the repository. In the beginning GitHub had some issues in finding the new entries and did not went past the following message:

The DNS records, however, were properly set to the GitHub Pages server found in the above documentation.

Setting up a knowledge base

Sat, 06 May 2023 21:29:28 +0200

The idea of migrating my website from a custom workflow to GitHub Pages was born after setting up a knowledge base I always wanted to be able to collect my knowledge in a central place. Since I really like Hugo, I had a look if I can find a good theme that works well as a knowledge base. I came across Geekdoc that looked really promising. I created a fork of it to be able to make some own adjustments and added it as a git submodule to my main GitHub repository for the knowledge base. This theme is heavily relying on NodeJS, so I had to add the following to my Hugo GitHub Action workflow for publishing it.

Moving from Thunderbird to NeoMutt

Tue, 09 Jun 2020 18:16:30 +0200

In order to use Neomutt which is only a mail user agent, you need to install tools to fetch and send mail. I use mbsync for delivering mail and msmtp for sending mail.

zypper in mbsync msmtp neomutt

Configuring mbsync

The instructions on how to setup mbsync can be found in the man page (man 1 mbsync) under the section “configuration”. Below you find a basic .mbsyncrc configuration file which uses one email account for receiving email.

Moving from KeePassXC to pass

Mon, 01 Jun 2020 19:29:30 +0200

Prerequisites

I use several plugins for pass and the tool tomb to be more flexible and secure:

# requisities for pass-import
zypper in python3-setuptools
pip3 install python3-yaml pykeepass

# pass-import
git clone https://github.com/roddhjav/pass-import/
cd pass-import
make
sudo make install # For OSX: make install PREFIX=/usr/local

# pass-update
git clone https://github.com/roddhjav/pass-update/
cd pass-update
sudo make install # For OSX: make install PREFIX=/usr/local

# pass-audit
git clone https://github.com/roddhjav/pass-audit/
cd pass-audit
make
sudo make install

# pass-tomb
git clone https://github.com/roddhjav/pass-tomb/
cd pass-tomb
sudo make install

# Tomb
wget https://files.dyne.org/tomb/Tomb-2.7.tar.gz
tar xvfz Tomb-2.7.tar.gz
cd Tomb-2.7
make install

Generate GPG key to open pass

gpg --gen-full-key --expert
(...)

pub ed25519/0xxxxx 2020-06-09 [SC]
 Key fingerprint = xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx
uid (Password Store) (Password Store) <xxxx@xxxx.de>
sub cv25519/0xxxxx 2020-06-09 [E]

Initialize pass and tomb

With the newly created GPG key we create a new tomb and inside this tomb a initialize the passwort store.

Working with npm

Tue, 18 Feb 2020 08:29:30 +0200

Installing npm

Since npm is bundled with Node.js it is sufficient to install Node.js:

zypper in nodejs14
# check versions
node -v
npm -v

Updating npm

npm install -g npm

Updating dependencies

A convenient way to update dependencies is using the tool npm-check-updates:

npm install -g npm-check-updates
# check for updates
ncu
# apply updates
ncu -u
# necessary to fetch the new dependencies
npm install

Linking packages

When building a package you usually want to test it. You can either publish it directly but when you change something you have to publish it again. This is not an ideal process. The better way is to locally link the package and test it afterwards. This process has 2 steps:

Coreboot on the Lenovo T420

Mon, 09 Dec 2019 00:00:00 +0000

Since 2014 the Lenovo T420 is replacing my broken Dell XPS M1710. The first thing I did was replacing the HDD with a 256 GB Samsung 840 SSD and installing Arch Linux on it. In the same year I stumbled across coreboot after gathering information related to the Snowden leaks the year before. Until October 2015 there was no support for the T420 in coreboot and the T420 wiki page gave little information about the topic. Months have passed and finally in March 2017 I dealt with the subject again and successfully flashed coreboot 4.5 on my T420, replacing the proprietary BIOS from Lenovo. The wiki page has now much more content and a guide on how to compile and build coreboot, too.

Going Live

Sun, 25 Jan 2015 19:35:14 +0100

The blog is live! It is powered by the static page generator Hugo and the ~~Hemingway2 After Dark~~ Hermit theme. Maybe I edit this post to add some instructions on how to set up and use Hugo (on uberspace 7).