A Windows desktop tool for browsing, editing, and managing AxisOS disk images that use the AXFS v2 filesystem and Amiga-style RDB partition tables. Because otherwise you'd have to boot AxisOS itself just to copy files on and off the disk image. And suffer. Bruh.
AxisOS is a custom operating system built for OpenComputers (a Minecraft mod that adds programmable computersssssssss). It uses its own filesystem - AXFS v2 — stored inside virtual disk images with Amiga-style RDB partition tables.
AXFS Explorer lets you work with these disk images from Windows: open them, browse the file tree, view and edit Lua scripts with syntax highlighting, import/export files, inspect inodes, and manage partitions — without needing to boot AxisOS itself.
Requires the .NET 8 SDK and the Windows App SDK workload.
dotnet build AxfsExplorer.sln
- Open an existing
.imgor.bindisk image (compressed.binfiles are auto-extracted) (probably) - Create a new image with a formatted AXFS v2 volume and RDB partition table
- Browse directories, double-click files to view/edit, drag & drop to import
Files can also be imported/exported in bulk, and the built-in editor supports Lua syntax highlighting, find & replace, and hex view.
AXFS v2 is a small extent-based filesystem designed for constrained environments (4KB EEPROM boot code, 512-byte sectors). Key properties:
- Superblock with CRC32 integrity check and generation counter (dual-copy for crash safety)
- Extent-based allocation with indirect block support for larger files
- Inline data for files ≤52 bytes (stored directly in the inode)
- Amiga RDB partition table with linked-list partition entries and block checksums
- Optional EFI partition for encrypted boot chains with HMAC-SHA256 key derivation
The boot EEPROM (axfs_boot.lua) reads the RDB, locates the AXFS partition, and loads the kernel - all in pure Lua within a 4KB size limit (no).
When? Fuck if I know. Maybe if someone contributes a Linux version, or if I get bored enough to do it myself. The code is pretty platform-agnostic, so it shouldn't be too hard to port - just need to replace the WinUI 3 UI layer with something cross-platform like Avalonia or MAUI.
See repository root for license information. Do we even need one? I guess if you want to fork it and add features, go ahead. Just don't make it worse than it already is.