A developer has made significant progress on an ext4 filesystem driver for OpenBSD, achieving read-only support at 200MB/s and read/write support at nearly 500KB/s. The driver was built using AI assistance (ChatGPT and Claude) without referencing Linux source code, with full compatibility for Linux ext4 formats and tools. The project represents a notable advancement in OpenBSD's filesystem capabilities.
Background
OpenBSD has historically lacked native ext4 filesystem support, requiring users to rely on FUSE or other workarounds for accessing Linux-formatted ext4 drives. The ext4 filesystem is widely used in Linux environments for its performance and reliability features.
- Source
- Lobsters
- Published
- Mar 12, 2026 at 12:05 AM
- Score
- 6.0 / 10