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Juniper ex2200 upgrade boot loader software .

‎05-17-2019 03:49 AM

Hi all ! I have juniper ex2200-24t-4g switch with junos 10.4R2.6 with U-Boot 1.1.6 ,i want upgrade junos up to 12.3R12 but in this case i must upgrade bootloader before upgrading junos .I understand that the process will be non-trivial, especially because this switch is located in a remote office, so i need to update the firmware and bootloader as safely as possible and not lose access to the switch in the process ...So my question is:  how to perform bootloader upgrade on ex series switches ? 

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Re: Juniper ex2200 upgrade boot loader software .

‎05-17-2019 05:46 PM

Hi GloomyDay, 

 

You can do the jloader upgrade using this technical bulletin, is very straight forward , but you have reboot the switch to install the jloader firmware, then you can do the normal upgrade ... for example : 10.4R3 > 11.4 > 12.3R12

 

https://kb.juniper.net/InfoCenter/index?page=content&id=TSB15524

 

Hope this help!

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