On SRX, try "show system software backup". And on EX, "show system snapshot media internal". Hope that answers your query.
Example:
root> run show version
Model: srx3400
JUNOS Software Release [12.3X48-D30.7]
root> show system software backup
Backup JUNOS package information:
File name: /cf/packages/junos-12.3X48-D75.4-domestic
File size: 278776304
root> request system software rollback
Restoring boot file package
junos-12.3X48-D75.4-domestic will become active at next reboot
WARNING: A reboot is required to load this software correctly
WARNING: Use the 'request system reboot' command
WARNING: when software installation is complete
root@EX3200-24T-r001-S1> show version
Hostname: EX3200-24T-r001-S1
Model: ex3200-24t
JUNOS Base OS boot [12.3R12.4]
JUNOS Base OS Software Suite [12.3R12.4]
JUNOS Kernel Software Suite [12.3R12.4]
JUNOS Crypto Software Suite [12.3R12.4]
JUNOS Online Documentation [12.3R12.4]
JUNOS Enterprise Software Suite [12.3R12.4]
JUNOS Packet Forwarding Engine Enterprise Software Suite [12.3R12.4]
JUNOS Routing Software Suite [12.3R12.4]
JUNOS Web Management [12.3R12.4]
JUNOS FIPS mode utilities [12.3R12.4]
root@EX3200-24T-r001-S1> show system storage partitions ?
Possible completions:
<[Enter]> Execute this command
| Pipe through a command
root@EX3200-24T-r001-S1> show system storage partitions
Boot Media: internal (da0)
Active Partition: da0s2a
Backup Partition: da0s1a
Currently booted from: active (da0s2a)
Partitions information:
Partition Size Mountpoint
s1a 183M altroot
s2a 184M /
s3d 369M /var/tmp
s3e 123M /var
s4d 62M /config
root@EX3200-24T-r001-S1> show system snapshot media internal
Information for snapshot on internal (/dev/da0s1a) (backup)
Creation date: Nov 8 21:59:37 2016
JUNOS version on snapshot:
jdocs-ex: 14.1X53-D40.8
jweb-ex: 14.1X53-D40.8
fips-mode-powerpc: 14.1X53-D40.8
WARNING: snapshot format is incompatible with the software currently running
Information for snapshot on internal (/dev/da0s2a) (primary)
Creation date: Jan 19 23:05:04 2016
JUNOS version on snapshot:
jbase : ex-12.3R12.4
jkernel-ex: 12.3R12.4
jcrypto-ex: 12.3R12.4
jdocs-ex: 12.3R12.4
jswitch-ex: 12.3R12.4
jpfe-ex42x: 12.3R12.4
jroute-ex: 12.3R12.4
jweb-ex: 12.3R12.4
fips-mode-powerpc: 12.3R12.4
Hope this helps.
Regards,
-r.
--------------------------------------------------
If this solves your problem, please mark this post as "Accepted Solution."
Kudos are always appreciated :).