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-rw-r--r--README10
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diff --git a/README b/README
index 9c49946..8f59be3 100644
--- a/README
+++ b/README
@@ -35,6 +35,16 @@ INDEX
performs a self-test of all files inside ${install_dir},
and continue booting if ok.
Default: (unset)
+* cow_label= Set the filesystem label where COW (dm-snapshot)
+ files must be stored.
+ Default: (unset)
+* cow_device= Set the device node where COW (dm-snapshot) files
+ must be stored.
+ Default: (unset) or "/dev/disk/by-label/${cow_label}"
+* cow_directory= Set a directory inside ${cow_device}.
+ Default: "/persistent_${archisolabel}/${arch}"
+* cow_persistent= Set if snapshots are persistent "P" or non-persistent "N".
+ Default: "N" (if no ${cow_device} is used) otherwise "P".
* cowspace_size= Set the size of tmpfs /cowspace. This space is used for
Copy-On-Write files of dm-snapshot.
(directory not visible outside initramfs)