# Machine Owner Key ## Identification [[Ubiquity installer|Ubiquity]] was Ubuntu’s graphical installer; `ubi-usersetup` handles user-creation steps. [[Machine Owner Key|MOK]] variables support shim/Secure Boot trust management. [[CompizConfig Settings Manager|CCSM]] configures Compiz. [[Xen|Xen]] is a hypervisor. ACPI/SPROM errors often identify platform or wireless-driver incompatibilities. ## Notebook evidence - [[Scanned_20260730-1719#PDF page 66 — Ubuntu installer, Macbuntu, MOK errors, Compiz, GRUB, Xen, and ACPI|PDF page 66: Ubuntu installer, Macbuntu, MOK errors, Compiz, GRUB, Xen, and ACPI]] — This is an install log condensed into reminders: interrupt a check, understand installer components, apply Mac-like theming, then interpret trust and hardware errors at boot. ## Relationships and overlays The source places this note in a shared evidence cluster with [[CompizConfig Settings Manager|CompizConfig Settings Manager]] · [[Ubiquity installer|Ubiquity installer]] · [[Xen|Xen]]. Within the larger collection, this evidence extends [[Vendor-Agnostic Recovery|vendor-agnostic recovery]] and [[Continuity Architecture|continuity architecture]] by showing how software, hardware, identity, and pre-OS control depend on recoverable interfaces. ## Evidentiary status and open leads Preserve exact error messages, Secure Boot state, `mokutil` output, hardware IDs, installer image hash, and whether boot ultimately succeeded. ## Source - [[Scanned_20260730-1719|Scanned_20260730-1719]]