Check for recovery & non-recovery snap shot

• root@juniper> show system snapshot

Delete non-recovery snapshot

• root@juniper> request system snapshot delete <snapshot-name>

Delete recovery snapshot (Repeat the steps for each VC member, From Here to End)

• Mount the OAM partition

root@juniper> start shell user root
root@juniper% mount /dev/gpt/oam/ /oam/
root@juniper% ls -l /oam/

• Delete snapshot

root@juniper% cli
root@juniper> file list /oam/snapshot/
root@juniper> file delete /oam/snapshot/recovery.ufs.uzip

Clear system storage

• root@juniper> request system storage cleanup

Check system storage

• root@juniper> show system storage

fpc0:
--------------------------------------------------------------------------
Filesystem               Size           Used            Avail          Capacity          Mounted on /
dev/gpt/junos           1.3G          995M           301M                89%          /.mount
tmpfs                        81M           200K           80M                    0%          /.mount/tmp
tmpfs                        324M         324M           624K                  0%          /.mount/mfs
/dev/gpt/oam/           484M         70M             375M                16%         /.mount/oam <==== use this directory to upgrade the switch

Copy JUNOS OS to /var/tmp directory using filezilla / WinSCP or FTP

Move JUNOS OS from "/var/tmp" to "/.mount/oam"

• root@juniper> file copy /var/tmp/JUNOS.tgz fpc0:/.mount/oam/

Delete JUNOS OS from "/var/tmp/" directory

• root@juniper> file delete /var/tmp/JUNOS.tgz

Upgrade JUNOS by adding no-validation & force

• root@juniper> request system software add /.mount/oam/JUNOS.tgz no-validate force

• root@juniper> request system reboot at now