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-rw-r--r--docs/ENVIRONMENT.md4
1 files changed, 3 insertions, 1 deletions
diff --git a/docs/ENVIRONMENT.md b/docs/ENVIRONMENT.md
index 3ec5573ff9..f29ca9226b 100644
--- a/docs/ENVIRONMENT.md
+++ b/docs/ENVIRONMENT.md
@@ -328,7 +328,9 @@ the journal instead of only when logging in debug mode.
paths. Only "real" file systems and directories that only contain "real" file
systems as submounts should be used. Do not specify API file systems such as
`/proc/` or `/sys/` here, or hierarchies that have them as submounts. In
- particular, do not specify the root directory `/` here.
+ particular, do not specify the root directory `/` here. Similarly,
+ `$SYSTEMD_CONFEXT_HIERARCHIES` works for confext images and supports the
+ systemd-confext multi-call functionality of sysext.
`systemd-tmpfiles`: