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-rw-r--r--doc/guix.texi13
1 files changed, 12 insertions, 1 deletions
diff --git a/doc/guix.texi b/doc/guix.texi
index 55657ec81c..bf9dbaa726 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -2274,11 +2274,14 @@ traverses @emph{all the files in the store}, this command can take a
long time, especially on systems with a slow disk drive.
@cindex repairing the store
+@cindex corruption, recovering from
Using @option{--verify=repair} or @option{--verify=contents,repair}
causes the daemon to try to repair corrupt store items by fetching
substitutes for them (@pxref{Substitutes}). Because repairing is not
atomic, and thus potentially dangerous, it is available only to the
-system administrator.
+system administrator. A lightweight alternative, when you know exactly
+which items in the store are corrupt, is @command{guix build --repair}
+(@pxref{Invoking guix build}).
@item --optimize
@cindex deduplication
@@ -4859,6 +4862,14 @@ When used in conjunction with @option{--keep-failed}, the differing
output is kept in the store, under @file{/gnu/store/@dots{}-check}.
This makes it easy to look for differences between the two results.
+@item --repair
+@cindex repairing store items
+@cindex corruption, recovering from
+Attempt to repair the specified store items, if they are corrupt, by
+re-downloading or rebuilding them.
+
+This operation is not atomic and thus restricted to @code{root}.
+
@item --derivations
@itemx -d
Return the derivation paths, not the output paths, of the given