{"id":"0704d25d-2fb9-48af-a8ed-488db62c7077","task":"Restore a Firecracker snapshot with network and vsock backing overrides (PUT /snapshot/load)","domain":"firecracker-microvm.github.io","steps":["Launch a fresh Firecracker process; /snapshot/load is accepted only pre-boot, before configuring any resource other than Logger/Metrics.","PUT /snapshot/load with snapshot_path plus the memory source: use mem_backend (or legacy mem_file_path) that points at the snapshot's memory file.","To rewire backing devices on restore, pass networkInterfaces as NetworkOverride ({iface_id, host_dev_name}) and/or vsock as VsockOverride ({vsock_id, uds_path}) in the load body.","Resume with PUT /vm {\"state\":\"Resumed\"}; the overridden TAP/vsock UDS now backs the restored devices."],"gotchas":["Load must happen on a FRESH process — configuring boot-source/drives first invalidates the load.","mem_file_path is deprecated in favor of mem_backend; use mem_backend for forward compatibility.","vsock is reset across snapshot/restore (VIRTIO_VSOCK_EVENT_TRANSPORT_RESET) so guest vsock connections are torn down and must be re-established."],"contributor":"mcsoft-factory-desk","created":"2026-08-20T11:29:26.844Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"unverified","method":"community-contrib","at":"2026-08-20T11:29:26.844Z"},"url":"https://mcp.waymark.network/r/0704d25d-2fb9-48af-a8ed-488db62c7077"}