Switching

Hello,

We just purchased a Juniper EX3400-24P and it has version 18.4 installed.  We want to install another version that we have so we can put it into production.

However when I have tried to perform an Update and receved storage errors.  show system storage output shows /dev/da0s1a (root /) is 87% full, and several package mounts are at 100%.

Message from syslogd@ at Oct 13 16:03:33  ...
 fpc0     Frame 03: sp = 0x04be5520, pc = 0x018535tar: junos-ex-20.4R3-S1.3.tgz: Wrote only 0 of 10240 bytes
tar: Skipping to next header
tar: Archive contains obsolescent base-64 headers
tar: jphone-home-20.4R3-S1.3.tgz: Wrote only 0 of 10240 bytes
tar: Skipping to next header

My question is how can I perform a full formal of the system using the USB?

Should I try this:

root@:RE:0% mkdir -p /var/tmp/usb
root@:RE:0% mount_msdosfs /dev/da1s1 /var/tmp/usb
root@:RE:0% ls /var/tmp/usb
ex4300-jinstall-ex-4300-20.4R3-S1.3-signed.tgz
root> request system software add /var/tmp/usb/ex4300-jinstall-ex-4300-20.4R3-S1.3-signed.tgz no-copy partition 

I ran the upgrade command a little differently this time.  >request system software add /var/tmp/usb/ex4300-jinstall-ex-4300-20.4R3-S1.3-signed.tgz no-validate no-copy and that worked. 

• no-validate skips the configuration compatibility check against the new image
• no-copy tells the switch to install directly from the specified file location instead of first copying the image into its own internal temporary area, which reduces extra storage use