[thin_check] --override-mapping-root

2017-10-04 11:43:13 +01:00
parent dcb0fe1148
commit 24931b3bda
2 changed files with 24 additions and 2 deletions
--- a/man8/thin_check.txt
+++ b/man8/thin_check.txt
@@ -33,6 +33,12 @@ OPTIONS
    is needed to fix any issues. After thin_repair succeeded, you may run
    thin_check again.

+  --override-mapping-root <block>	Specify a mapping root to use.
+
+    Don't use this.  This overrides what's specified in the superblock.  Only
+    use this if you really understand the metadata format and are trying to
+    recover damaged metadata.
+
 EXAMPLE
  Analyses thin provisioning metadata on logical volume /dev/vg/metadata: