feat: Create minimal Zero-OS initramfs with console support

- Fixed build system to clone source repositories instead of downloading binaries
- Enhanced scripts/fetch-github.sh with proper git repo cloning and branch handling
- Updated scripts/compile-components.sh for RFS compilation with build-binary feature
- Added minimal firmware installation for essential network drivers (73 modules)
- Created comprehensive zinit configuration set (15 config files including getty)
- Added util-linux package for getty/agetty console support
- Optimized package selection for minimal 27MB initramfs footprint
- Successfully builds bootable vmlinuz.efi with embedded initramfs
- Confirmed working: VM boot, console login, network drivers, zinit init system

Components:
- initramfs.cpio.xz: 27MB compressed minimal Zero-OS image
- vmlinuz.efi: 35MB bootable kernel with embedded initramfs
- Complete Zero-OS toolchain: zinit, rfs, mycelium compiled from source
This commit is contained in:
2025-08-16 23:25:59 +02:00
parent 446eb02fb3
commit bf62e887e8
109 changed files with 7645 additions and 1945 deletions

View File

@@ -6,8 +6,8 @@ Modern Alpine Linux based approach to building Zero-OS initramfs with source com
This system uses:
- **Alpine Linux 3.22** as base system with latest packages
- **Rust workspace** with git subtrees for Zero-OS Rust components (zinit, mycelium, rfs)
- **Unified compilation** via `cargo build --workspace` for all Rust components
- **Individual Rust workspaces** with git subtrees for Zero-OS components (zinit, mycelium, rfs)
- **Component-based compilation** - each component built in its own workspace
- **Alpine packages** for system tools (busybox, openssh, btrfs-progs, etc.)
- **Smart caching** with Docker layers and volumes
- **Same init flow** as original Zero-OS
@@ -16,15 +16,14 @@ This system uses:
```
alpine-initramfs/
├── Cargo.toml # Rust workspace configuration
├── build/ # Build orchestration
│ ├── Dockerfile.alpine # Alpine build environment
│ ├── Dockerfile.cached # Multi-stage cached build
│ └── docker-compose.yml # Build orchestration with caching
├── components/ # Git subtrees (Rust workspace members)
│ ├── zinit/ # Init system (Rust subtree)
│ ├── mycelium/ # Networking layer (Rust subtree)
│ └── rfs/ # Filesystem (Rust subtree)
├── components/ # Git subtrees (individual workspaces)
│ ├── zinit/ # Init system (Rust subtree with workspace)
│ ├── mycelium/ # Networking layer (Rust subtree with workspace)
│ └── rfs/ # Filesystem (Rust subtree with workspace)
├── configs/ # Configuration files
│ ├── packages-alpine.txt # Alpine packages to install
│ ├── kernel-version # Kernel version to build
@@ -54,7 +53,7 @@ alpine-initramfs/
## Build Flow
1. **Environment Setup**: Alpine Docker container with Rust and build tools
2. **Workspace Compilation**: Single `cargo build --workspace` for all Rust components
2. **Component Compilation**: Individual cargo builds for each Rust component
3. **Binary Downloads**: Download CoreX (Go binary) from GitHub releases
4. **Package Installation**: Install Alpine packages to initramfs root
5. **Initramfs Assembly**: Create filesystem structure with compiled binaries
@@ -79,13 +78,13 @@ cd build/
# Interactive development shell
docker-compose run dev-shell
# Build entire workspace
cargo build --workspace --release --target x86_64-unknown-linux-musl
# Build all components (automated)
../scripts/compile-components.sh
# Build specific component
cargo build -p zinit --release --target x86_64-unknown-linux-musl
cargo build -p mycelium --release --target x86_64-unknown-linux-musl
cargo build -p rfs --release --target x86_64-unknown-linux-musl
# Build individual components manually:
cd ../components/zinit && cargo build --release --target x86_64-unknown-linux-musl
cd ../components/mycelium && cargo build --release --target x86_64-unknown-linux-musl
cd ../components/rfs && cargo build --release --target x86_64-unknown-linux-musl
```
### Smart Build (with caching)
@@ -96,10 +95,10 @@ docker-compose run builder # Uses build-smart.sh automatically
## Key Features
-**Rust workspace** - Unified build system for all Rust components
-**Component workspaces** - Each component maintains its own workspace
-**Git subtrees** - Source code included, no submodule complexity
-**Single build command** - `cargo build --workspace` builds everything
-**Shared dependencies** - Consistent versions across all components
-**Automated build** - `scripts/compile-components.sh` builds all components
-**Shared target directory** - Efficient build artifact sharing
-**Smart caching** - Docker layer and volume caching for fast rebuilds
-**Alpine packages** - System tools from Alpine repositories
-**Development mode** - Full IDE support and integrated tooling
@@ -112,13 +111,13 @@ docker-compose run builder # Uses build-smart.sh automatically
cd build/
docker-compose run dev-shell
# Inside container - workspace build:
cargo build --workspace --release --target x86_64-unknown-linux-musl
# Inside container - build all components:
../scripts/compile-components.sh
# Or build specific packages:
cargo build -p zinit --release --target x86_64-unknown-linux-musl
cargo build -p mycelium --release --target x86_64-unknown-linux-musl
cargo build -p rfs --release --target x86_64-unknown-linux-musl
# Or build specific components manually:
cd ../components/zinit && cargo build --release --target x86_64-unknown-linux-musl
cd ../components/mycelium/myceliumd && cargo build --release --target x86_64-unknown-linux-musl
cd ../components/rfs && cargo build --release --target x86_64-unknown-linux-musl
```
### Cleanup