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-rw-r--r--en/appendix/preseed.xml15
1 files changed, 10 insertions, 5 deletions
diff --git a/en/appendix/preseed.xml b/en/appendix/preseed.xml
index 1dd94237c..1fa47dd17 100644
--- a/en/appendix/preseed.xml
+++ b/en/appendix/preseed.xml
@@ -394,11 +394,16 @@ this appendix instead of the full variable.
</para><para>
-A <quote>--</quote> in the boot options has special meaning.
-Kernel parameters that appear after it will be copied into the installed
-bootloader configuration (if supported by the installer for the
-bootloader). Note that the <quote>--</quote> may already be
-present in the default boot parameters.
+A <quote>--</quote> in the boot options has special meaning. Kernel
+parameters that appear after the last <quote>--</quote> will be copied
+into the installed bootloader configuration (if supported by the
+installer for the bootloader). Note that the <quote>--</quote> may
+already be present in the default boot parameters, which will mean
+that unless you add another <quote>--</quote> all parameters specified
+at the boot prompt will be copied. That being the case, you should
+specify any preseeding options before any options required by the
+hardware in order to boot, and separate them with a <quote>--</quote>
+to ensure that only the latter are copied onto the target system.
</para>
<note><para>