A native AmigaOS 2.x hard disk partition editor with full RDB (Rigid Disk Block) support.
Note: AmiPart is the software formerly known as DiskPart — renamed to avoid confusion with the unrelated Microsoft Windows tool of the same name. Same program, same author, new name.
Latest build — including the executable, an autoboot ADF, and a native Linux CLI binary. Click Assets on that page to see the downloadable files.
AmiPart also builds as a native Linux command-line tool from the same
source — the full CLI and script engine, operating on disk image files
(.hdf), with backups made on the Amiga verifiable on Linux and vice
versa:
make linux # builds host/amipart (plain gcc, no deps)
./host/amipart IMAGE=disk.hdf INFO
./host/amipart SCRIPT prep.script FORCE
./host/amipart ?
Same commands and syntax as the Amiga version (see cmdline.txt).
Raw devices work too — sudo ./host/amipart DEV=/dev/sdb INFO — with
the disk opened exclusively (mounted disks are refused by the kernel).
Quick-format works here too: AmiPart's internal formatter writes FFS/OFS,
PFS3 and SFS volumes itself, byte-identical to the real handlers.
See host/README.txt for details.
AmiPart is a partition management tool for the Amiga, built as a clean GadTools application that runs directly on Kickstart 2.x with no external library dependencies beyond the ROM. It was created out of a simple conviction: the Amiga deserves a good, modern partition editor — and it is better to have one now than never.
"Vibecoded software might be argued with, but this is an experiment in what AI-assisted development can produce when given a clear goal and a demanding user."
Director: John Hertell — john(at)hertell.nu
Code: Claude Code (Anthropic)
- AmigaOS 2.x (Kickstart 2.04 or later)
- Intuition, GadTools, DOS libraries (all standard ROM)
- ASL library optional (enables the Browse file requester in the filesystem driver dialog)
Run AmiPart from the Shell or double-click from Workbench.
- A device selector appears listing all detected disk controllers. Use Filter / Show All to toggle between storage-only and full device lists.
- Select a device and click Select — a progress window shows each unit being probed.
- Select a unit and click Select to open the partition editor.
- Use the buttons along the bottom to manage partitions and filesystem drivers.
- Click Write when satisfied to commit changes to disk.
When launched by double-clicking its icon, AmiPart reads these tooltypes from the icon (set them via the icon's Information window, or NOWARNING on the CLI):
NOWARNING— suppresses the startup disclaimer.WINDOW=left/top/width/height— restores the partition editor window to this position and size on open, e.g.WINDOW=50/30/640/400. Ignored (falls back to the default centered size) if the saved geometry no longer fits the current screen — for example after switching to a smaller resolution. Not read when AmiPart is run from the Shell.
Supports two m68k toolchains, auto-detected by make:
- Bebbo (
m68k-amigaos-gcc, default/opt/amiga) - Bartman/Abyss (
m68k-amiga-elf-gcc)
make # auto-detect (prefers Bartman when its VS Code extension is installed, else Bebbo)
make TOOLCHAIN=bebbo # force Bebbo
make TOOLCHAIN=bartman # force BartmanOr build with the Bebbo toolchain via Docker (no host install required):
./docker.shmake adf builds out/AmiPart.adf, an autoboot floppy image that boots
straight into AmiPart (no Workbench needed). Requires amitools
(pip install amitools) for its xdftool.
Output: out/AmiPart
This project was developed through AI-assisted ("vibecoded") collaboration — the architecture, decisions, and direction came from a human; the implementation was written by an AI. Whether that makes the software more or less trustworthy is a fair question. The answer offered here is: judge it by what it does, read the source if you want, and always keep a backup before touching partition tables.
MIT License
Copyright (c) 2026 John Hertell
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.