Another quick aide-memoir describing the recovery of a corrupted
JUNOS image – the EX3300 series LAN switch has booted from the backup
image.
— JUNOS 11.4R5.5 built 2012-08-25 05:29:29 UTC
***********************************************************************
** **
** WARNING: THIS DEVICE HAS BOOTED FROM THE BACKUP JUNOS IMAGE **
** **
** It is possible that the primary copy of JUNOS failed to boot up **
** properly, and so this device has booted from the backup copy. **
** **
** Please re-install JUNOS to recover the primary copy in case **
** it has been corrupted. **
** **
***********************************************************************
darenm@coresw1# show version
## Last changed: 2015-02-13 10:50:43 UTC
version 11.4R5.5;
darenm@coresw1> exit
darenm@coresw1> show version
fpc0:
————————————————————————–
Hostname: coresw1
Model: ex3300-48p
JUNOS Base OS boot [11.4R5.5]
JUNOS Base OS Software Suite [11.4R5.5]
JUNOS Kernel Software Suite [11.4R5.5]
JUNOS Crypto Software Suite [11.4R5.5]
JUNOS Online Documentation [11.4R5.5]
JUNOS Enterprise Software Suite [11.4R5.5]
JUNOS Packet Forwarding Engine Enterprise Software Suite [11.4R5.5]
JUNOS Routing Software Suite [11.4R5.5]
JUNOS Web Management [11.4R5.5]
JUNOS FIPS mode utilities [11.4R5.5]
{master:0}
darenm@coresw1>
UPLOAD NEW IMAGE OF CORRECT VERSION:
darenm@coresw1> ping 10.15.52.74
PING 10.15.52.74 (10.15.52.74): 56 data bytes
64 bytes from 10.15.52.74: icmp_seq=0 ttl=122 time=201.971 ms
64 bytes from 10.15.52.74: icmp_seq=1 ttl=122 time=201.505 ms
^C
— 10.15.52.74 ping statistics —
2 packets transmitted, 2 packets received, 0% packet loss
round-trip min/avg/max/stddev = 201.505/201.738/201.971/0.233 ms
request system software add ftp://dst:dst@10.15.52.74/jinstall-ex-3300-12.3R3.4-domestic-signed.tgz
darenm@coresw1> …ex-3300-12.3R3.4-domestic-signed.tgz
Checking pending install on fpc0
Fetching package…
Validating on fpc0
Done with validate on all virtual chassis members
fpc0:
WARNING: A reboot is required to install the software
WARNING: Use the ‘request system reboot’ command immediately
{master:0}
darenm@coresw1>
darenm@coresw1> request system reboot
Reboot the system ? [yes,no] (no) yes
Shutdown NOW!
[pid 1270]
{master:0}
darenm@coresw1>
*** FINAL System shutdown message from darenm@coresw1 ***
System going down IMMEDIATELY
NOW VERIFY:
darenm@coresw1> show chassis routing-engine
Routing Engine status:
Slot 0:
Current state Master
Temperature 34 degrees C / 93 degrees F
CPU temperature 34 degrees C / 93 degrees F
DRAM 1024
Memory utilization 37 percent
CPU utilization:
User 1 percent
Background 0 percent
Kernel 0 percent
Interrupt 0 percent
Idle 99 percent
Model EX3300 48-Port POE+
Serial ID GB0212528309
Start time 2015-02-13 11:43:31 UTC
Uptime 7 minutes, 59 seconds
Last reboot reason Router rebooted after a normal shutdown.
Load averages: 1 minute 5 minute 15 minute
0.13 0.72 0.46
{master:0}
darenm@coresw1>
darenm@coresw1> show version
fpc0:
————————————————————————–
Hostname: coresw1
Model: ex3300-48p
JUNOS Base OS boot [12.3R3.4]
JUNOS Base OS Software Suite [12.3R3.4]
JUNOS Kernel Software Suite [12.3R3.4]
JUNOS Crypto Software Suite [12.3R3.4]
JUNOS Online Documentation [12.3R3.4]
JUNOS Enterprise Software Suite [12.3R3.4]
JUNOS Packet Forwarding Engine Enterprise Software Suite [12.3R3.4]
JUNOS Routing Software Suite [12.3R3.4]
JUNOS Web Management [12.3R3.4]
JUNOS FIPS mode utilities [12.3R3.4]
{master:0}
darenm@coresw1>
darenm@coresw1> show system storage partitions
fpc0:
————————————————————————–
Boot Media: internal (da0)
Active Partition: da0s2a <========== ** THIS IS THE ACTIVE SLICE **
Backup Partition: da0s1a
Currently booted from: active (da0s2a) <========== ** THIS IS THE ACTIVE SLICE **
Partitions information:
Partition Size Mountpoint
s1a 183M altroot
s2a 184M /
s3d 369M /var/tmp
s3e 123M /var
s4d 62M /config
{master:0}
darenm@coresw1>
PROBLEM: LOWER VERSION ON (CURRENT) BACKUP PARTITION:
darenm@coresw1> show system snapshot media internal
fpc0:
————————————————————————–
Information for snapshot on internal (/dev/da0s1a) (backup)
Creation date: Aug 25 10:00:09 2012
JUNOS version on snapshot:
jbase : ex-11.4R5.5
jkernel-ex-3300: 11.4R5.5
jweb-ex: 11.4R5.5
jcrypto-ex: 11.4R5.5
jdocs-ex: 11.4R5.5
jswitch-ex: 11.4R5.5
jpfe-ex33x: 11.4R5.5
jroute-ex: 11.4R5.5
fips-mode-arm: 11.4R5.5
Information for snapshot on internal (/dev/da0s2a) (primary)
Creation date: Feb 13 11:42:23 2015
JUNOS version on snapshot:
jbase : ex-12.3R3.4
jkernel-ex-3300: 12.3R3.4
jweb-ex: 12.3R3.4
jcrypto-ex: 12.3R3.4
jdocs-ex: 12.3R3.4
jswitch-ex: 12.3R3.4
jpfe-ex33x: 12.3R3.4
jroute-ex: 12.3R3.4
fips-mode-arm: 12.3R3.4
{master:0}
darenm@coresw1>
darenm@coresw1> show virtual-chassis status
Preprovisioned Virtual Chassis
Virtual Chassis ID: b9fc.2725.cccf
Virtual Chassis Mode: Enabled
Mstr Mixed Neighbor List
Member ID Status Serial No Model prio Role Mode ID Interface
0 (FPC 0) Prsnt GB0212528309 ex3300-48p 129 Master* NA 1 vcp-255/1/2
1 vcp-255/1/3
1 (FPC 1) Prsnt GB0212528262 ex3300-48p 129 Backup NA 0 vcp-255/1/2
0 vcp-255/1/3
{master:0}
darenm@coresw1>
darenm@coresw1> show virtual-chassis vc-port
fpc0:
————————————————————————–
Interface Type Trunk Status Speed Neighbor
or ID (mbps) ID Interface
PIC / Port
1/2 Configured 5 Up 10000 1 vcp-255/1/2
1/3 Configured 5 Up 10000 1 vcp-255/1/3
fpc1:
————————————————————————–
Interface Type Trunk Status Speed Neighbor
or ID (mbps) ID Interface
PIC / Port
1/2 Configured 5 Up 10000 0 vcp-255/1/2
1/3 Configured 5 Up 10000 0 vcp-255/1/3
{master:0}
darenm@coresw1>
COPY IMAGE FROM PRIMARY TO BACKUP:
darenm@coresw1> request system snapshot slice alternate
fpc0:
———————————————————————-
Formatting alternate root (/dev/da0s1a)…
Copying ‘/dev/da0s2a’ to ‘/dev/da0s1a’ .. (this may take a few minutes)
The following filesystems were archived: /
fpc1:
————————————————————————–
Formatting alternate root (/dev/da0s1a)…
Copying ‘/dev/da0s2a’ to ‘/dev/da0s1a’ .. (this may take a few minutes)
The following filesystems were archived: /
{master:1}
darenm@coresw1>
VERIFY:
darenm@sajoncoresw1> show system snapshot media internal
fpc0:
———————————————————————- —-
Information for snapshot on internal (/dev/da0s1a) (backup)
Creation date: Mar 3 12:04:17 2015
JUNOS version on snapshot:
jbase : ex-12.3R3.4
jkernel-ex-3300: 12.3R3.4
jweb-ex: 12.3R3.4
jcrypto-ex: 12.3R3.4
jdocs-ex: 12.3R3.4
jswitch-ex: 12.3R3.4
jpfe-ex33x: 12.3R3.4
jroute-ex: 12.3R3.4
fips-mode-arm: 12.3R3.4
Information for snapshot on internal (/dev/da0s2a) (primary)
Creation date: Feb 13 11:42:23 2015
JUNOS version on snapshot:
jbase : ex-12.3R3.4
jkernel-ex-3300: 12.3R3.4
jweb-ex: 12.3R3.4
jcrypto-ex: 12.3R3.4
jdocs-ex: 12.3R3.4
jswitch-ex: 12.3R3.4
jpfe-ex33x: 12.3R3.4
jroute-ex: 12.3R3.4
fips-mode-arm: 12.3R3.4
fpc1:
————————————————————————–
Information for snapshot on internal (/dev/da0s1a) (backup)
Creation date: Mar 3 12:09:49 2015
JUNOS version on snapshot:
jbase : ex-12.3R3.4
jkernel-ex-3300: 12.3R3.4
jweb-ex: 12.3R3.4
jcrypto-ex: 12.3R3.4
jdocs-ex: 12.3R3.4
jswitch-ex: 12.3R3.4
jpfe-ex33x: 12.3R3.4
jroute-ex: 12.3R3.4
fips-mode-arm: 12.3R3.4
Information for snapshot on internal (/dev/da0s2a) (primary)
Creation date: Jun 14 03:12:32 2013
JUNOS version on snapshot:
jbase : ex-12.3R3.4
jkernel-ex-3300: 12.3R3.4
jweb-ex: 12.3R3.4
jcrypto-ex: 12.3R3.4
jdocs-ex: 12.3R3.4
jswitch-ex: 12.3R3.4
jpfe-ex33x: 12.3R3.4
jroute-ex: 12.3R3.4
fips-mode-arm: 12.3R3.4
{master:1}
darenm@sajoncoresw1>
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