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-rw-r--r--docs/usage/check.rst.inc9
-rw-r--r--docs/usage/mount.rst.inc7
2 files changed, 13 insertions, 3 deletions
diff --git a/docs/usage/check.rst.inc b/docs/usage/check.rst.inc
index 738f7d614..e8e1f9fe9 100644
--- a/docs/usage/check.rst.inc
+++ b/docs/usage/check.rst.inc
@@ -66,9 +66,12 @@ Second, the consistency and correctness of the archive metadata is verified:
- Check if archive metadata chunk is present. if not, remove archive from
manifest.
- For all files (items) in the archive, for all chunks referenced by these
- files, check if chunk is present (if not and we are in repair mode, replace
- it with a same-size chunk of zeros). This requires reading of archive and
- file metadata, but not data.
+ files, check if chunk is present.
+ If a chunk is not present and we are in repair mode, replace it with a same-size
+ replacement chunk of zeros.
+ If a previously lost chunk reappears (e.g. via a later backup) and we are in
+ repair mode, the all-zero replacement chunk will be replaced by the correct chunk.
+ This requires reading of archive and file metadata, but not data.
- If we are in repair mode and we checked all the archives: delete orphaned
chunks from the repo.
- if you use a remote repo server via ssh:, the archive check is executed on
diff --git a/docs/usage/mount.rst.inc b/docs/usage/mount.rst.inc
index 1754b0e2c..b8d1fb5ac 100644
--- a/docs/usage/mount.rst.inc
+++ b/docs/usage/mount.rst.inc
@@ -42,3 +42,10 @@ This command mounts an archive as a FUSE filesystem. This can be useful for
browsing an archive or restoring individual files. Unless the ``--foreground``
option is given the command will run in the background until the filesystem
is ``umounted``.
+
+For mount options, see the fuse(8) manual page. Additional mount options
+supported by borg:
+
+- allow_damaged_files: by default damaged files (where missing chunks were
+ replaced with runs of zeros by borg check --repair) are not readable and
+ return EIO (I/O error). Set this option to read such files.