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Model BMC firmware capability catalog + OS-install mechanism solve + srv3 boot-once-CD (structured Disposition) - #5765
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…ame expression line Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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This was referenced Jun 24, 2026
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Re-lands the content of #5748 and #5750 with structured
std.disposition—Disposition::Scaffold { dissolves_to, bind }— instead of prose strings for scaffold markers.What
extdeps/bmc/capability.dag(new)BmcCapabilityclosed coproduct (PowerControl | BootSourceOverride | AccountManagement | FirmwareUpdate | VirtualMedia | BiosAttributeConfig),BmcFirmwareVersion,BmcFirmwareCapabilityRowcatalog type. One grounded row:openbmc_2_07_00_capabilitiesfrom a live Redfish probe of srv3's BMC (2026-06-24) — has Power/BootOverride/AccountManagement/FirmwareUpdate; lacks VirtualMedia (404) and BiosAttributeConfig.§3 dissolution
Deleted
RedfishVirtualMediaSupportfromextdeps/bmc/types.dagandasrock_altrad8ud_virtual_media_supportfromextdeps/boards/asrock_rack.dag— these modeled VirtualMedia as a board property when it is a firmware property. Now it's capability membership:CapabilityVirtualMedia ∈ row.capabilities.gunbc/os_install_mechanism.dag(new)OsInstallMechanism = VirtualMediaInstall | PxeHttpInstall | FirmwareUpdateThenVirtualMedia+solve_install_mechanism(current, catalog). VirtualMediaInstall preferred; when absent but UpdateService present and catalog knows a VM-capable firmware →FirmwareUpdateThenVirtualMedia(firmware update as a capability-acquiring transition).srv3_install_mechanismsolves toPxeHttpInstalltoday — add a VM-capable row → it flips with no edit to the solve.gunbc/srv3_boot_once_cd.dag(new)srv3_boot_once_cd(): stage netrc (factory creds) → PATCH/Systems/systemBoot Target=Cd/Enabled=Once → POSTComputerSystem.ResetForceRestart. Secret-on-disk scaffold marked withDisposition::Scaffold { dissolves_to: RealizationDispatch, bind: extdeps.filesystem.filesystem_io.Filesystem }— NOT prose strings.Witnesses (green by local execution)
bmc_capability_solve_witness_test.dag(5 tests): capabilities grounded; catalog has no VM firmware today; srv3 → PXE today; VM-capable row flips to FirmwareUpdateThenVirtualMedia; node with VirtualMedia solves direct.srv3_boot_once_cd_witness_test.dag(3 tests): boot-override body wires Cd/Once; reset body wires ForceRestart; wire labels grounded.srv3_os_install_witness_test.dag: removed stale board-level virtual-media test (dissolved by capability model).🤖 Generated with Claude Code