assume the partition offset is zero when the device name terminates with /raw

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24649 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/bin/makebootable/platform/bios_ia32/makebootable.cpp

@@ -478,7 +478,7 @@ main(int argc, const char *const *argv)
 		#ifdef __BEOS__
 
 			// get a partition info
-			if (!noPartition) {
+			if (!noPartition && strncmp("/raw", fileName + strlen(fileName) - 4, 4)) {
 				partition_info partitionInfo;
 				if (ioctl(fd, B_GET_PARTITION_INFO, &partitionInfo) == 0) {
 					partitionOffset = partitionInfo.offset;