[j-nsp] Force a reboot from the serial console?

Saku Ytti saku at ytti.fi
Thu May 31 15:31:13 EDT 2018


s/now/no/



On 31 May 2018 at 22:30, Saku Ytti <saku at ytti.fi> wrote:
> Hey Harry,
>
> This is unfortunate news, considering JNPR is shipping now platform
> with true lights-out OOB, port which does not rely on router
> control-plane CPU and Memory, debugger-on-break was only reasonable
> abstraction of OOB. On-band RS232 depending on main OS running is far
> less than ideal.
> I hope there are plans to introduce lights out port in future.
>
> Anyhow, not shooting the messenger, thank you for the information.
>
>
> On 31 May 2018 at 20:44, Harry Reynolds <harry at juniper.net> wrote:
>> As FYI, the ability to enter db from console has been disabled in recent builds for security reasons. In effect this makes system debugger-on-break (hidden) configuration moot. There is a work around in the form of a panic package, which I assume is available externally given the info in below.
>>
>> See pr 1352217 for added info/external content that was to be added to release notes.
>>
>> Regards
>>
>>
>> -----Original Message-----
>> From: juniper-nsp <juniper-nsp-bounces at puck.nether.net> On Behalf Of Saku Ytti
>> Sent: Thursday, May 31, 2018 10:18 AM
>> To: Juniper List <juniper-nsp at puck.nether.net>
>> Subject: Re: [j-nsp] Force a reboot from the serial console?
>>
>> Hey Chris,
>>
>>
>> On 31 May 2018 at 20:04, Chris Adams <cma at cmadams.net> wrote:
>>
>>> Is there any way to for a reboot at that point?  Like, on old Sun
>>> servers, sending a BREAK followed by certain other keys could get to
>>> the firmware and hard-reboot the system, even with the OS was fubar.
>>> Is there anything like that on a Juniper?
>>
>> set system debugger-on-break
>>
>> Break would instruct CPU to start executing code where the debugger lives, and from debugger, insha'allah you could reboot the system.
>>
>> --
>>   ++ytti
>> _______________________________________________
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>
>
>
> --
>   ++ytti



-- 
  ++ytti


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