Pear / Bare application that owns the canonical system Hyperdrive: it walks a kernel tree on disk, writes /boot/init.js, /bin/*, /etc/* into the drive (no host temp dirs), builds a 512-byte MBR with the drive key, joins Hyperswarm on bare-os-v1, and serves MBR block reads + Protomux bare-os-v1 replication to peers.

When to use: run the seeder when you want to publish the canonical system image for booters to replicate (typical dev: one terminal with npm run os:seeder). Eligible already-booted peers can later mirror block 0, but the seeder remains the trust anchor for initial publication.

Documentation: Concepts — Boot · Seeder reference · User manual ch.3 · Protocol reference.

Run

From package directory (after npm ci at repo root):

node index.js

Or with Bare/Pear:

npm run pear:dev

From repo root (recommended — fixes workspace node_modules for Pear):

npm run os:seeder

Environment

BARE_OS_KERNEL_ROOT — Absolute path to kernel tree to stage (default: package kernel/ vendored copy, or repo kernel/ under Node file: URL)
BARE_OS_HOST_DATA — Base directory for host state (default ~/.bare-os)
BARE_OS_SEED_STORE — Corestore directory (default ~/.bare-os/corestore/seeder)
BARE_OS_SEED_CAPABILITY_ATTESTATION_JSON — Optional JSON string for seed RPC bare_os.capability_attestation (operators verify on host; guest does not crypto-verify)

Pear vs Node

import.meta.url is file: — seeder may dynamically import bare-os-coreutils/build.mjs and bare-os-bare-libs/build.mjs, rebuilding /bin and kernel/lib/bare before staging.
pear: bundle — coreutils and /lib/bare bundles must be pre-built into kernel/; run npm run build -w bare-os-coreutils and npm run build -w bare-os-bare-libs before pear run (root npm run os:seeder does both).

Layout

index.js — Entry: Corestore, Hyperdrive, stageKernelTree, swarm, setupSeedChannel (RPCs include optional bare_os.snapshot_hints and bare_os.peer_firewall_stats when implemented)
lib/paths.js — packageRootDir, kernel root, Corestore path (Pear RTI–aware)
kernel/ — Vendored mirror of repo kernel/ for Pear staging — must match kernel/ byte-for-byte (npm test pretest runs scripts/verify-kernel-seeder-parity.mjs)

Dependencies

bare-os-protocol (workspace), hyperdrive, corestore, hyperswarm, protomux, b4a, compact-encoding, safety-catch, bare-os.

README.md Unescape Escape

bare-os-seeder

Run

Environment

Pear vs Node

Layout

Dependencies

See also

README.md