Upgrading Juniper J2320 Compact Flash
This week I had to upgrade both the DRAM and the Compact Flash on a Juniper J2320 router. Normally used to configuring and building the larger MX routers, this was the first time I got my hands on one of the smaller J-series routers.
The DRAM upgrade was straightforward - pop the lid open and insert the new memory strip. But the new CF supplied by Juniper was blank and needed to be formatted and JUNOS loaded before you use it. The Juniper support guide only details how to remove and install the CF, not format it. However I found a very quick and easy way:
Inset the new CF card into the rear CF slot of the router.
On the CLI, type the following command:
request system snapshot partition media removable-compact-flash
This will prepare (format) the new CF and copy the JUNOS and config across from the internal CF. This process took about 5 mins to complete.
Once the new CF is prepared, power down the router, replace the internal CF with the newly prepared CF and reboot.