Diagnosing NixOS Activation Failures After nixos-rebuild switch
A step‑by‑step diagnostic guide for common NixOS activation failures after nixos-rebuild switch, with checks, fixes, and rollback advice.
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nixosnixos-rebuild switch aborts with generic attribute‑missing error on missing module import
NixOS Module System When running nixos-rebuild switch with a missing or mis‑named entry in the imports list of /etc/nixos/configuration.nix , the NixOS module system aborts the build and reports a generic attribute‑missing exception. The evaluator does not automatically indicate which file path caused the lookup failure, leaving users to trace the problem ma