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-rw-r--r--qemu-doc.texi2
1 files changed, 2 insertions, 0 deletions
diff --git a/qemu-doc.texi b/qemu-doc.texi
index 0f1e7ccf5a..0d869ed192 100644
--- a/qemu-doc.texi
+++ b/qemu-doc.texi
@@ -274,6 +274,8 @@ These options have the same definition as they have in @option{-hdachs}.
Specify which disk @var{format} will be used rather than detecting
the format. Can be used to specifiy format=raw to avoid interpreting
an untrusted format header.
+@item serial=@var{serial}
+This option specifies the serial number to assign to the device.
@end table
By default, writethrough caching is used for all block device. This means that