96 lines
3.5 KiB
Markdown
96 lines
3.5 KiB
Markdown
# Build and start FDS
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This guide creates a bootable FDS SYSTEM image and starts it in QEMU. Use an
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x86_64 Arch Linux workstation for the complete OS build. To build application
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cartridges on another Linux distribution, use the [workstation guide](workstation.md).
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A prepared set of kernel, initramfs and SYSTEM images can be run on a Linux
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workstation without building the OS locally.
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## Prepare the workstation
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Use a normal user account, a Git checkout with its submodule metadata, and a
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checkout path without spaces. Initial preparation needs Internet access. The
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host must support unprivileged user namespaces and namespaced binfmt_misc
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(Linux 6.7 or newer). Full builds and VM tests use tens of GiB per build tree;
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check free space with `df -h .` and use [cleanup](cleanup.md) between build batches.
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From the checkout directory, install host prerequisites:
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```sh
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sudo pacman -S --needed bash coreutils binutils git curl make file tar xz gzip zstd \
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bubblewrap rustup ca-certificates findutils diffutils grep sed gawk util-linux \
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python e2fsprogs libarchive lz4
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bwrap --ro-bind / / --unshare-user --uid 0 --gid 0 true
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```
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Python must be 3.14 or newer. The namespace check exits successfully without
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output. Build commands below run as your normal user, sequentially; they share
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one project-local Void build container.
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```sh
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make bootstrap
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make smoke-test
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make check
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```
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Bootstrap prepares pinned Rust and XBPS tools and the Void build container.
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The upstream reference stays clean in `vendor/void-packages/`. Generated package
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copies, build configuration and caches live in `.host/void-packages/`; edit
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FDS package sources in `packages/`, not in either generated checkout.
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The smoke test checks the AArch64 build toolchains; `make check` validates the
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build guardrails. Stop and resolve any failed command before continuing. Logs
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are in `out/logs/`. Repeated preparation reuses verified downloads and caches.
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## Build the images
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```sh
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make rootfs PROFILE=cli
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make system-card PROFILE=cli
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make initramfs
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make workstation
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```
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The rootfs build includes the kernel and base packages. These are the three
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inputs needed by the emulator:
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| File | Purpose |
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| --- | --- |
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| `out/kernel/boot/kernel_2712.img` | ARM kernel |
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| `out/fds-initramfs.img` | Early startup and SYSTEM discovery |
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| `out/fds-system-cli.img` | Read-only operating system cartridge |
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`make rootfs PROFILE=development` followed by `make system-card PROFILE=development`
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builds a SYSTEM with compilers, Git, Vim, debuggers and display diagnostics.
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Both profiles include WindowMaker and the Dasung daemon. The desktop starts on
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request. `make all` also assembles recovery, boot and internal-storage images;
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see [internal installation](internal-storage.md) when preparing a physical machine.
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## Start the emulator
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With the project-local QEMU tools:
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```sh
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./tools/in-void xbps-install -y qemu-img
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out/workstation/fds-emulator --session out/my-emulator start --qemu-runner tools/in-void
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out/workstation/fds-emulator --session out/my-emulator console
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```
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If QEMU is installed directly on the workstation, omit `--qemu-runner`.
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The session directory must be new. At the `FDS>` prompt:
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```sh
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fds info
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fds bays
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fds --help
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```
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The shell runs as the ordinary `fds` user. Press **Ctrl-]** to detach from the
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console; the VM remains running. Stop it from the workstation:
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```sh
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out/workstation/fds-emulator --session out/my-emulator stop
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```
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Continue with [building and inserting software cartridges](workstation.md).
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That guide also covers using copied boot images, DATA overlays and USB writing.
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