Oh, sorry , I have no serial device now。。

Is there any other way?

在 2018年8月30日星期四 UTC+8下午10:24:00,Robert Nelson写道:
>
> On Thu, Aug 30, 2018 at 9:22 AM Lang Gu <[email protected] <javascript:>> 
> wrote: 
> > 
> > Hi,Robert , 
> > 
> > When I used sudo dd if=/dev/zero of=/dev/mmcblk1 bs=1M count=10 
> > 
> > i find my BBB can not start without SDcard(my BBB sys is debian 7.5  2G 
> eMMC ), 
> > 
> > but I insert SDcard(brun debian 8.7 machinekit  2017-02-12)  can start 
> (debian 8.7) 
> > 
> > when I burn debian 9.X into SDcard and insert to BBB , it's still can 
> not start . sometimes  4 LED  bright。。 
>
> serial log? 
>
> Regards, 
>
> -- 
> Robert Nelson 
> https://rcn-ee.com/ 
>

-- 
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