[j-nsp] Rebuilding an M20 from a HD crash

[Alex]

I don't think you can partition HDD from scratch with "request system 
snapshot partition".
In fact, you cannot run "request system snapshot partition" even if HDD has 
JUNOS 8.5 on it and flash has <8.5.
Temporarily pulling a flash out and using a PCMCIA card to repartition and 
reinstall the same version of JUNOS on
HDD only will get you an operational HDD. Then you can put the flash back 
and make sure the boot sequence is right
so that router boots from flash. Then you can run "request system snapshot 
partition" and you're done.
Rgds
Alex

----- Original Message ----- 
From: "Jonas Frey" <jf at probe-networks.de>
To: "Lucas T" <ltobey2 at gmail.com>
Cc: <juniper-nsp at puck.nether.net>
Sent: Tuesday, August 05, 2008 5:32 PM
Subject: Re: [j-nsp] Rebuilding an M20 from a HD crash


> Hello,
>
> its not that hard to do. In general you do the following:
>
> If the flash is still working the RE should boot up fine saying that it
> is creating an emergency /var partition in ram.
> You should be able to login.
> Issue the following command:
> request system snapshot partition
>
> This will partition the hdd and copy JunOS over to it.
> Basically this should be all you need to do. However it might be
> required to reinstall JunOS via a jinstall package. YMMV.
>
> Regards,
> Jonas Frey
>
> On Tue, 2008-08-05 at 17:22, Lucas T wrote:
>> Hello All,
>>
>> We had an M20 hard drive die on our routing engine. We ordered a used
>> IBM hard drive and the Juniper seems to be detecting it. The problem
>> we are having,however, is figuring out how to get JunOS back onto the
>> hard drive.
>>
>> I was reading the "JunOS Cookbook" and there's a section for making
>> and using an emergency boot disk. I tried that out, but it's not
>> working.
>>
>> Has anyone else had this problem or has ideas about how to get the M20
>> back up and running from a crashed HD?
>>
>> Thanks for the help!
>>
>> -Lucas
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>
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