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-rw-r--r--doc/guix.texi6
1 files changed, 5 insertions, 1 deletions
diff --git a/doc/guix.texi b/doc/guix.texi
index 2f9fcbe3bf..2345617b2e 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -3385,7 +3385,7 @@ deleted. The set of garbage collector roots (``GC roots'' for short)
includes default user profiles; by default, the symlinks under
@file{/var/guix/gcroots} represent these GC roots. New GC roots can be
added with @command{guix build --root}, for example (@pxref{Invoking
-guix build}).
+guix build}). The @command{guix gc --list-roots} command lists them.
Prior to running @code{guix gc --collect-garbage} to make space, it is
often useful to remove old generations from user profiles; that way, old
@@ -3451,6 +3451,10 @@ This prints nothing unless the daemon was started with
@option{--cache-failures} (@pxref{Invoking guix-daemon,
@option{--cache-failures}}).
+@item --list-roots
+List the GC roots owned by the user; when run as root, list @emph{all} the GC
+roots.
+
@item --clear-failures
Remove the specified store items from the failed-build cache.