diff -Nru ntfs-3g-2012.1.15AR.1/debian/changelog ntfs-3g-2012.1.15AR.1/debian/changelog
--- ntfs-3g-2012.1.15AR.1/debian/changelog	2012-08-25 20:19:22.000000000 +0000
+++ ntfs-3g-2012.1.15AR.1/debian/changelog	2012-09-11 03:51:11.000000000 +0000
@@ -1,3 +1,10 @@
+ntfs-3g (1:2012.1.15AR.1-1ubuntu1.2) precise-proposed; urgency=low
+
+  * Add readonly-devices.patch: Mount read-only devices as read-only instead
+    of failing. Thanks to Jean Pierre Andre for the patch! (LP: #435192)
+
+ -- Martin Pitt <martin.pitt@ubuntu.com>  Tue, 11 Sep 2012 05:49:00 +0200
+
 ntfs-3g (1:2012.1.15AR.1-1ubuntu1.1) precise-proposed; urgency=low
 
   * ntfs-3g-junction-point-fix.patch: Return the correct type (DT_LINK) for
diff -Nru ntfs-3g-2012.1.15AR.1/debian/patches/readonly-devices.patch ntfs-3g-2012.1.15AR.1/debian/patches/readonly-devices.patch
--- ntfs-3g-2012.1.15AR.1/debian/patches/readonly-devices.patch	1970-01-01 00:00:00.000000000 +0000
+++ ntfs-3g-2012.1.15AR.1/debian/patches/readonly-devices.patch	2012-09-11 03:51:11.000000000 +0000
@@ -0,0 +1,66 @@
+Description: Mount read-only devices as read-only instead of failing.
+Author: Jean Pierre Andre (https://launchpad.net/~jean-pierre-andre)
+Bug-Ubuntu: https://launchpad.net/bugs/435192
+Bug-Debian: http://bugs.debian.org/686914
+
+Index: ntfs-3g-2012.1.15AR.1/src/lowntfs-3g.c
+===================================================================
+--- ntfs-3g-2012.1.15AR.1.orig/src/lowntfs-3g.c	2012-02-01 11:02:41.000000000 +0100
++++ ntfs-3g-2012.1.15AR.1/src/lowntfs-3g.c	2012-09-10 07:49:47.833583959 +0200
+@@ -4090,6 +4090,12 @@
+ 	if (err)
+ 		goto err_out;
+         
++	/* Force read-only mount if the device was found read-only */
++	if (!ctx->ro && NVolReadOnly(ctx->vol)) {
++		ctx->ro = TRUE;
++		if (ntfs_strinsert(&parsed_options, ",ro")) 
++                	goto err_out;
++	}
+ 	/* We must do this after ntfs_open() to be able to set the blksize */
+ 	if (ctx->blkdev && set_fuseblk_options(&parsed_options))
+ 		goto err_out;
+Index: ntfs-3g-2012.1.15AR.1/src/ntfs-3g.c
+===================================================================
+--- ntfs-3g-2012.1.15AR.1.orig/src/ntfs-3g.c	2012-02-01 11:02:41.000000000 +0100
++++ ntfs-3g-2012.1.15AR.1/src/ntfs-3g.c	2012-09-10 07:49:47.837583959 +0200
+@@ -3739,6 +3739,12 @@
+ 	if (err)
+ 		goto err_out;
+ 	
++	/* Force read-only mount if the device was found read-only */
++	if (!ctx->ro && NVolReadOnly(ctx->vol)) {
++		ctx->ro = TRUE;
++		if (ntfs_strinsert(&parsed_options, ",ro")) 
++                	goto err_out;
++	}
+ 	/* We must do this after ntfs_open() to be able to set the blksize */
+ 	if (ctx->blkdev && set_fuseblk_options(&parsed_options))
+ 		goto err_out;
+Index: ntfs-3g-2012.1.15AR.1/libntfs-3g/volume.c
+===================================================================
+--- ntfs-3g-2012.1.15AR.1.orig/libntfs-3g/volume.c	2012-02-01 11:02:41.000000000 +0100
++++ ntfs-3g-2012.1.15AR.1/libntfs-3g/volume.c	2012-09-10 07:49:47.837583959 +0200
+@@ -513,8 +513,20 @@
+ 	
+ 	/* ...->open needs bracketing to compile with glibc 2.7 */
+ 	if ((dev->d_ops->open)(dev, NVolReadOnly(vol) ? O_RDONLY: O_RDWR)) {
+-		ntfs_log_perror("Error opening '%s'", dev->d_name);
+-		goto error_exit;
++		if (!NVolReadOnly(vol) && (errno == EROFS)) {
++			if ((dev->d_ops->open)(dev, O_RDONLY)) {
++				ntfs_log_perror("Error opening read-only '%s'",
++						dev->d_name);
++				goto error_exit;
++			} else {
++				ntfs_log_info("Can only open '%s' as read-only\n",
++						dev->d_name);
++				NVolSetReadOnly(vol);
++			}
++		} else {
++			ntfs_log_perror("Error opening '%s'", dev->d_name);
++			goto error_exit;
++		}
+ 	}
+ 	/* Attach the device to the volume. */
+ 	vol->dev = dev;
diff -Nru ntfs-3g-2012.1.15AR.1/debian/patches/series ntfs-3g-2012.1.15AR.1/debian/patches/series
--- ntfs-3g-2012.1.15AR.1/debian/patches/series	2012-08-25 20:16:54.000000000 +0000
+++ ntfs-3g-2012.1.15AR.1/debian/patches/series	2012-09-11 03:51:11.000000000 +0000
@@ -1,2 +1,3 @@
 syncio-compat.patch
 ntfs-3g-junction-point-fix.patch
+readonly-devices.patch