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-rw-r--r--crypttab.58
1 files changed, 8 insertions, 0 deletions
diff --git a/crypttab.5 b/crypttab.5
index 73bd8aed..5a172eae 100644
--- a/crypttab.5
+++ b/crypttab.5
@@ -49,6 +49,14 @@ If the field is not present or the password is set to \fBnone\fR,
the password has to be manually entered during system boot.
Otherwise the field is interpreted as a path to a file
containing the encryption password.
+This field does not support spaces, whether escaped with back slashes
+or quotes. Back slashes or quotes will cause this field
+to be interpreted as a path to a password file. If you wish
+to use a password with spaces in it, please use a password file.
+If using a password file, please note that the entire contents of the
+password file is used, including new lines and non-printable characters.
+A password file without a line feed can be created with the "echo" command's "-n"
+option. For example: echo -n "pass phrase" > MyPasswordFile
For swap encryption
.B /dev/urandom
can be used as the password file;