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37 lines
1.2 KiB
Markdown
37 lines
1.2 KiB
Markdown
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# Name
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`nix-store --verify` - check Nix database for consistency
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# Synopsis
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`nix-store` `--verify` [`--check-contents`] [`--repair`]
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# Description
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The operation `--verify` verifies the internal consistency of the Nix
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database, and the consistency between the Nix database and the Nix
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store. Any inconsistencies encountered are automatically repaired.
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Inconsistencies are generally the result of the Nix store or database
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being modified by non-Nix tools, or of bugs in Nix itself.
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This operation has the following options:
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- `--check-contents`\
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Checks that the contents of every valid store path has not been
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altered by computing a SHA-256 hash of the contents and comparing it
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with the hash stored in the Nix database at build time. Paths that
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have been modified are printed out. For large stores,
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`--check-contents` is obviously quite slow.
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- `--repair`\
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If any valid path is missing from the store, or (if
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`--check-contents` is given) the contents of a valid path has been
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modified, then try to repair the path by redownloading it. See
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`nix-store --repair-path` for details.
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{{#include ./opt-common.md}}
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{{#include ../opt-common.md}}
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{{#include ../env-common.md}}
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