Installing OpenBSD on Pomera DM250 Devices: Technical Notes and Custom Images
By
jandeboevrie
An everything bagel for the brain. Substantive, layered, well-seasoned.
Summary
This article provides technical notes and pre-built images for installing OpenBSD-current on Japanese-model Pomera DM250 devices (DM250, DM250X, DM250XY). The author warns that much of the work hasn't been committed upstream yet, requiring custom kernel and U-Boot images, and cautions that OpenBSD support is still improving and may not be stable. The article includes specific warnings about risks and notes that the instructions should not be used for the US-model DM250US yet.
Key quotes
· 4 pulledThese are my notes and pre-built images for getting OpenBSD-current installed on the Japanese-model Pomera DM250, DM250X, and DM250XY.
Much of my work has not yet been committed upstream so installation currently requires a custom kernel and U-Boot image which are provided here.
OpenBSD support is still improving and may not be stable at any given time. Install at your own risk.
Note: Do not use these instructions for the US-model DM250US yet.
You might also wanna read
KernelUNO: Lightweight Unix-like Shell for Arduino UNO R3
KernelUNO is a lightweight RAM-based shell for Arduino UNO R3 that simulates a Unix-like environment with filesystem simulation, hardware co
github.com·1mo ago
Ada Programming for Embedded Systems: Open-Source Neorv32 BIOS Project Demonstrates Alternative to C
This article discusses the Neorv32 BIOS project, which demonstrates using Ada programming language as an alternative to C for open-source em
blog.adacore.com·7mo ago
Copyparty: A Lightweight File Server That Runs as a Single Python Script
Copyparty is a lightweight, full-featured file server that runs as a single Python script, making it extremely easy to set up without needin
hackaday.com·1h ago
Netflix engineer's open-source tool cuts AI token usage by up to 90%
Netflix senior engineer Tejas Chopra created software called "Project Headroom" that prunes redundant tokens from AI agent instructions befo
theregister.com·4h ago
Researcher's "ADHD" tool for Claude Code claims 2x improvement; experts call for more evidence
Solo researcher Udit Akhouri released a third-party Agent SDK tool called "ADHD" for Claude Code on Reddit, claiming it makes the coding age
bit.ly·1d ago
wolfCOSE: A Lightweight COSE + CBOR Library for Embedded Systems with PQC and FIPS 140-3 Support
wolfCOSE is a lightweight C library implementing CBOR (RFC 8949) and COSE (RFC 9052/9053) for embedded systems, using wolfSSL as the crypto
github.com·1d ago