how to reinstall junos

[Rohit]

todeay when i login my juniper srx 100 i got this error on my terminal window

WARNING :THE DEVICE HAS BOOTED FROM THE BACKUP JUNOS IMAGE,IT IS POSSIBLE THAT FIRST COPYU OF JUNOS FAILED TO BOOT SO PLEASE REINSTALL TO RECOVER IT

how can i find out the reason behind my junos image failue and how can i restore it and what can be done best to avoid this failure in the future,

Thanks 

[Aigarz]

It may be simple power outage that forces Junos boot from the backup partition.
Issue the
show system snapshot media internal

If primary partition shows normal version – simply reboot the device. It will boot from primary.

how to reinstall:

http://kb.juniper.net/InfoCenter/index?page=content&id=KB16652 

[Rohit]

i run that command it is showing me the same vers which is present in backup imaje,i reboot the device but the problem did not solved,my quistion is if this backup imaje also failed then do i need to install both the imaje or i need to install only primary,

[SSHSSH]

after u use the above mentioned command , reboot using " request system reboot slice 1" 

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[Visitor]

Hi Rohit,

It looks like the device is not able to load the junos from primary media. Once the srx boots us from secondary partition you can issue command > request system snapshot media internal slice alternate

This will copy the image of the secondary media to the primary media and the next time you boot the srx it should load from the primary media.

Hope this helps.

Regards,

Visitor

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[Rohit]

Thanks to all that issue was resolved after rebooting the device supar contri thanks for sharing this command ,