{"id":2119,"date":"2015-02-17T12:03:11","date_gmt":"2015-02-17T12:03:11","guid":{"rendered":"http:\/\/mccltd.net\/blog\/?p=2119"},"modified":"2015-03-06T17:22:47","modified_gmt":"2015-03-06T17:22:47","slug":"junos-boot-from-backup-image-recovery","status":"publish","type":"post","link":"http:\/\/darenmatthews.com\/blog\/?p=2119","title":{"rendered":"JUNOS Boot from Backup Image &#8211; Recovery"},"content":{"rendered":"<blockquote><p>Another quick aide-memoir describing the recovery of a corrupted JUNOS image &#8211; the EX3300 series LAN switch has booted from the backup image.<\/p>\n<p>&#8212; JUNOS 11.4R5.5 built 2012-08-25 05:29:29 UTC<\/p>\n<p>***********************************************************************<br \/>\n**\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 **<br \/>\n**\u00a0 WARNING: THIS DEVICE HAS BOOTED FROM THE BACKUP JUNOS IMAGE\u00a0\u00a0\u00a0\u00a0\u00a0 **<br \/>\n**\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 **<br \/>\n**\u00a0 It is possible that the primary copy of JUNOS failed to boot up\u00a0 **<br \/>\n**\u00a0 properly, and so this device has booted from the backup copy.\u00a0\u00a0\u00a0 **<br \/>\n**\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 **<br \/>\n**\u00a0 Please re-install JUNOS to recover the primary copy in case\u00a0\u00a0\u00a0\u00a0\u00a0 **<br \/>\n**\u00a0 it has been corrupted.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 **<br \/>\n**\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 **<br \/>\n***********************************************************************<\/p>\n<p><strong>darenm@coresw1# show version<\/strong><br \/>\n## Last changed: 2015-02-13 10:50:43 UTC<br \/>\nversion 11.4R5.5;<!--more--><\/p>\n<p><strong>darenm@coresw1&gt; exit<\/strong><\/p>\n<p><strong>darenm@coresw1&gt; show version<\/strong><br \/>\nfpc0:<br \/>\n&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br \/>\nHostname: coresw1<br \/>\nModel: ex3300-48p<br \/>\nJUNOS Base OS boot [11.4R5.5]<br \/>\nJUNOS Base OS Software Suite [11.4R5.5]<br \/>\nJUNOS Kernel Software Suite [11.4R5.5]<br \/>\nJUNOS Crypto Software Suite [11.4R5.5]<br \/>\nJUNOS Online Documentation [11.4R5.5]<br \/>\nJUNOS Enterprise Software Suite [11.4R5.5]<br \/>\nJUNOS Packet Forwarding Engine Enterprise Software Suite [11.4R5.5]<br \/>\nJUNOS Routing Software Suite [11.4R5.5]<br \/>\nJUNOS Web Management [11.4R5.5]<br \/>\nJUNOS FIPS mode utilities [11.4R5.5]<\/p>\n<p>{master:0}<br \/>\ndarenm@coresw1&gt;<\/p>\n<p><span style=\"text-decoration: underline;\"><strong>UPLOAD NEW IMAGE OF CORRECT VERSION:<\/strong><\/span><\/p>\n<p><strong>darenm@coresw1&gt; ping 10.15.52.74<\/strong><br \/>\nPING 10.15.52.74 (10.15.52.74): 56 data bytes<br \/>\n64 bytes from 10.15.52.74: icmp_seq=0 ttl=122 time=201.971 ms<br \/>\n64 bytes from 10.15.52.74: icmp_seq=1 ttl=122 time=201.505 ms<br \/>\n^C<br \/>\n&#8212; 10.15.52.74 ping statistics &#8212;<br \/>\n2 packets transmitted, 2 packets received, 0% packet loss<br \/>\nround-trip min\/avg\/max\/stddev = 201.505\/201.738\/201.971\/0.233 ms<\/p>\n<p><strong>request system software add ftp:\/\/dst:dst@10.15.52.74\/jinstall-ex-3300-12.3R3.4-domestic-signed.tgz<\/strong><\/p>\n<p>darenm@coresw1&gt; &#8230;ex-3300-12.3R3.4-domestic-signed.tgz<\/p>\n<p>Checking pending install on fpc0<br \/>\nFetching package&#8230;<\/p>\n<p>Validating on fpc0<br \/>\nDone with validate on all virtual chassis members<\/p>\n<p>fpc0:<br \/>\nWARNING: A reboot is required to install the software<br \/>\nWARNING:\u00a0\u00a0\u00a0\u00a0 Use the &#8216;request system reboot&#8217; command immediately<\/p>\n<p>{master:0}<br \/>\ndarenm@coresw1&gt;<\/p>\n<p><strong>darenm@coresw1&gt; request system reboot<\/strong><br \/>\nReboot the system ? [yes,no] (no) yes<\/p>\n<p>Shutdown NOW!<br \/>\n[pid 1270]<\/p>\n<p>{master:0}<br \/>\ndarenm@coresw1&gt;<br \/>\n*** FINAL System shutdown message from darenm@coresw1 ***<\/p>\n<p>System going down IMMEDIATELY<\/p>\n<p><strong>NOW VERIFY:<\/strong><\/p>\n<p><strong>darenm@coresw1&gt; show chassis routing-engine<\/strong><br \/>\nRouting Engine status:<br \/>\nSlot 0:<br \/>\nCurrent state\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Master<br \/>\nTemperature\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 34 degrees C \/ 93 degrees F<br \/>\nCPU temperature\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 34 degrees C \/ 93 degrees F<br \/>\nDRAM\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1024<br \/>\nMemory utilization\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 37 percent<br \/>\nCPU utilization:<br \/>\nUser\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1 percent<br \/>\nBackground\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0 percent<br \/>\nKernel\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0 percent<br \/>\nInterrupt\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0 percent<br \/>\nIdle\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 99 percent<br \/>\nModel\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 EX3300 48-Port POE+<br \/>\nSerial ID\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 GB0212528309<br \/>\nStart time\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2015-02-13 11:43:31 UTC<br \/>\nUptime\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 7 minutes, 59 seconds<br \/>\nLast reboot reason\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Router rebooted after a normal shutdown.<br \/>\nLoad averages:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1 minute\u00a0\u00a0 5 minute\u00a0 15 minute<br \/>\n0.13\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.72\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.46<\/p>\n<p>{master:0}<br \/>\ndarenm@coresw1&gt;<\/p>\n<p><strong>darenm@coresw1&gt; show version<\/strong><br \/>\nfpc0:<br \/>\n&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br \/>\nHostname: coresw1<br \/>\nModel: ex3300-48p<br \/>\nJUNOS Base OS boot [12.3R3.4]<br \/>\nJUNOS Base OS Software Suite [12.3R3.4]<br \/>\nJUNOS Kernel Software Suite [12.3R3.4]<br \/>\nJUNOS Crypto Software Suite [12.3R3.4]<br \/>\nJUNOS Online Documentation [12.3R3.4]<br \/>\nJUNOS Enterprise Software Suite [12.3R3.4]<br \/>\nJUNOS Packet Forwarding Engine Enterprise Software Suite [12.3R3.4]<br \/>\nJUNOS Routing Software Suite [12.3R3.4]<br \/>\nJUNOS Web Management [12.3R3.4]<br \/>\nJUNOS FIPS mode utilities [12.3R3.4]<\/p>\n<p>{master:0}<br \/>\ndarenm@coresw1&gt;<\/p>\n<p><strong>darenm@coresw1&gt; show system storage partitions<\/strong><br \/>\nfpc0:<br \/>\n&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br \/>\nBoot Media: internal (da0)<br \/>\nActive Partition: da0s2a <strong>&lt;========== ** THIS IS THE ACTIVE SLICE **<\/strong><br \/>\nBackup Partition: da0s1a<br \/>\nCurrently booted from: active (da0s2a) <strong>&lt;========== ** THIS IS THE ACTIVE SLICE **<\/strong><\/p>\n<p>Partitions information:<br \/>\nPartition\u00a0 Size\u00a0\u00a0 Mountpoint<br \/>\ns1a\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 183M\u00a0\u00a0 altroot<br \/>\ns2a\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 184M\u00a0\u00a0 \/<br \/>\ns3d\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 369M\u00a0\u00a0 \/var\/tmp<br \/>\ns3e\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 123M\u00a0\u00a0 \/var<br \/>\ns4d\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 62M\u00a0\u00a0\u00a0 \/config<\/p>\n<p>{master:0}<br \/>\ndarenm@coresw1&gt;<\/p>\n<p><span style=\"text-decoration: underline;\"><strong>PROBLEM: LOWER VERSION ON (CURRENT) BACKUP PARTITION:<\/strong><\/span><\/p>\n<p>darenm@coresw1&gt; show system snapshot media internal<br \/>\nfpc0:<br \/>\n&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br \/>\nInformation for snapshot on\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 internal (\/dev\/da0s1a) (backup)<br \/>\nCreation date: Aug 25 10:00:09 2012<br \/>\nJUNOS version on snapshot:<br \/>\njbase\u00a0 : ex-11.4R5.5<br \/>\njkernel-ex-3300: 11.4R5.5<br \/>\njweb-ex: 11.4R5.5<br \/>\njcrypto-ex: 11.4R5.5<br \/>\njdocs-ex: 11.4R5.5<br \/>\njswitch-ex: 11.4R5.5<br \/>\njpfe-ex33x: 11.4R5.5<br \/>\njroute-ex: 11.4R5.5<br \/>\nfips-mode-arm: 11.4R5.5<br \/>\nInformation for snapshot on\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 internal (\/dev\/da0s2a) (primary)<br \/>\nCreation date: Feb 13 11:42:23 2015<br \/>\nJUNOS version on snapshot:<br \/>\njbase\u00a0 : ex-12.3R3.4<br \/>\njkernel-ex-3300: 12.3R3.4<br \/>\njweb-ex: 12.3R3.4<br \/>\njcrypto-ex: 12.3R3.4<br \/>\njdocs-ex: 12.3R3.4<br \/>\njswitch-ex: 12.3R3.4<br \/>\njpfe-ex33x: 12.3R3.4<br \/>\njroute-ex: 12.3R3.4<br \/>\nfips-mode-arm: 12.3R3.4<\/p>\n<p>{master:0}<br \/>\ndarenm@coresw1&gt;<\/p>\n<p><strong>darenm@coresw1&gt; show virtual-chassis status<\/strong><\/p>\n<p>Preprovisioned Virtual Chassis<br \/>\nVirtual Chassis ID: b9fc.2725.cccf<br \/>\nVirtual Chassis Mode: Enabled<br \/>\nMstr\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Mixed Neighbor List<br \/>\nMember ID\u00a0 Status\u00a0\u00a0 Serial No\u00a0\u00a0\u00a0 Model\u00a0\u00a0\u00a0\u00a0 prio\u00a0 Role\u00a0\u00a0\u00a0\u00a0\u00a0 Mode ID\u00a0 Interface<br \/>\n0 (FPC 0)\u00a0 Prsnt\u00a0\u00a0\u00a0 GB0212528309 ex3300-48p 129\u00a0 Master*\u00a0\u00a0\u00a0\u00a0 NA\u00a0 1\u00a0 vcp-255\/1\/2<br \/>\n1\u00a0 vcp-255\/1\/3<br \/>\n1 (FPC 1)\u00a0 Prsnt\u00a0\u00a0\u00a0 GB0212528262 ex3300-48p 129\u00a0 Backup\u00a0\u00a0\u00a0\u00a0\u00a0 NA\u00a0 0\u00a0 vcp-255\/1\/2<br \/>\n0\u00a0 vcp-255\/1\/3<\/p>\n<p>{master:0}<br \/>\ndarenm@coresw1&gt;<\/p>\n<p><strong>darenm@coresw1&gt; show virtual-chassis vc-port<\/strong><br \/>\nfpc0:<br \/>\n&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br \/>\nInterface\u00a0\u00a0 Type\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Trunk\u00a0 Status\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Speed\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Neighbor<br \/>\nor\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ID\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (mbps)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ID\u00a0 Interface<br \/>\nPIC \/ Port<br \/>\n1\/2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Configured\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 5\u00a0\u00a0\u00a0 Up\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 10000\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1\u00a0\u00a0 vcp-255\/1\/2<br \/>\n1\/3\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Configured\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 5\u00a0\u00a0\u00a0 Up\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 10000\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1\u00a0\u00a0 vcp-255\/1\/3<\/p>\n<p>fpc1:<br \/>\n&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br \/>\nInterface\u00a0\u00a0 Type\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Trunk\u00a0 Status\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Speed\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Neighbor<br \/>\nor\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ID\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (mbps)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ID\u00a0 Interface<br \/>\nPIC \/ Port<br \/>\n1\/2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Configured\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 5\u00a0\u00a0\u00a0 Up\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 10000\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0 vcp-255\/1\/2<br \/>\n1\/3\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Configured\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 5\u00a0\u00a0\u00a0 Up\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 10000\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0 vcp-255\/1\/3<\/p>\n<p>{master:0}<br \/>\ndarenm@coresw1&gt;<\/p>\n<p><span style=\"text-decoration: underline;\"><strong>COPY IMAGE FROM PRIMARY TO BACKUP:<\/strong><\/span><\/p>\n<p><strong>darenm@coresw1&gt; request system snapshot slice alternate<\/strong><br \/>\nfpc0:<br \/>\n&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br \/>\nFormatting alternate root (\/dev\/da0s1a)&#8230;<br \/>\nCopying &#8216;\/dev\/da0s2a&#8217; to &#8216;\/dev\/da0s1a&#8217; .. (this may take a few minutes)<br \/>\nThe following filesystems were archived: \/<\/p>\n<p>fpc1:<br \/>\n&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br \/>\nFormatting alternate root (\/dev\/da0s1a)&#8230;<br \/>\nCopying &#8216;\/dev\/da0s2a&#8217; to &#8216;\/dev\/da0s1a&#8217; .. (this may take a few minutes)<br \/>\nThe following filesystems were archived: \/<\/p>\n<p>{master:1}<br \/>\ndarenm@coresw1&gt;<\/p>\n<p><strong>VERIFY:<\/strong><\/p>\n<p><strong>darenm@sajoncoresw1&gt; show system snapshot media internal<\/strong><br \/>\nfpc0:<br \/>\n&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 &#8212;-<br \/>\nInformation for snapshot on\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 internal (\/dev\/da0s1a) (backup)<br \/>\nCreation date: Mar 3 12:04:17 2015<br \/>\nJUNOS version on snapshot:<br \/>\njbase\u00a0 : ex-12.3R3.4<br \/>\njkernel-ex-3300: 12.3R3.4<br \/>\njweb-ex: 12.3R3.4<br \/>\njcrypto-ex: 12.3R3.4<br \/>\njdocs-ex: 12.3R3.4<br \/>\njswitch-ex: 12.3R3.4<br \/>\njpfe-ex33x: 12.3R3.4<br \/>\njroute-ex: 12.3R3.4<br \/>\nfips-mode-arm: 12.3R3.4<br \/>\nInformation for snapshot on\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 internal (\/dev\/da0s2a) (primary)<br \/>\nCreation date: Feb 13 11:42:23 2015<br \/>\nJUNOS version on snapshot:<br \/>\njbase\u00a0 : ex-12.3R3.4<br \/>\njkernel-ex-3300: 12.3R3.4<br \/>\njweb-ex: 12.3R3.4<br \/>\njcrypto-ex: 12.3R3.4<br \/>\njdocs-ex: 12.3R3.4<br \/>\njswitch-ex: 12.3R3.4<br \/>\njpfe-ex33x: 12.3R3.4<br \/>\njroute-ex: 12.3R3.4<br \/>\nfips-mode-arm: 12.3R3.4<\/p>\n<p>fpc1:<br \/>\n&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br \/>\nInformation for snapshot on\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 internal (\/dev\/da0s1a) (backup)<br \/>\nCreation date: Mar 3 12:09:49 2015<br \/>\nJUNOS version on snapshot:<br \/>\njbase\u00a0 : ex-12.3R3.4<br \/>\njkernel-ex-3300: 12.3R3.4<br \/>\njweb-ex: 12.3R3.4<br \/>\njcrypto-ex: 12.3R3.4<br \/>\njdocs-ex: 12.3R3.4<br \/>\njswitch-ex: 12.3R3.4<br \/>\njpfe-ex33x: 12.3R3.4<br \/>\njroute-ex: 12.3R3.4<br \/>\nfips-mode-arm: 12.3R3.4<br \/>\nInformation for snapshot on\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 internal (\/dev\/da0s2a) (primary)<br \/>\nCreation date: Jun 14 03:12:32 2013<br \/>\nJUNOS version on snapshot:<br \/>\njbase\u00a0 : ex-12.3R3.4<br \/>\njkernel-ex-3300: 12.3R3.4<br \/>\njweb-ex: 12.3R3.4<br \/>\njcrypto-ex: 12.3R3.4<br \/>\njdocs-ex: 12.3R3.4<br \/>\njswitch-ex: 12.3R3.4<br \/>\njpfe-ex33x: 12.3R3.4<br \/>\njroute-ex: 12.3R3.4<br \/>\nfips-mode-arm: 12.3R3.4<\/p>\n<p>{master:1}<br \/>\ndarenm@sajoncoresw1&gt;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>Another quick aide-memoir describing the recovery of a corrupted JUNOS image &#8211; the EX3300 series LAN switch has booted from the backup image. &#8212; JUNOS 11.4R5.5 built 2012-08-25 05:29:29 UTC *********************************************************************** **\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ** **\u00a0 WARNING: THIS DEVICE HAS BOOTED FROM THE BACKUP JUNOS IMAGE\u00a0\u00a0\u00a0\u00a0\u00a0 ** **\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ** **\u00a0 It is possible that the primary copy [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[63,1],"tags":[],"_links":{"self":[{"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/2119"}],"collection":[{"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2119"}],"version-history":[{"count":7,"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/2119\/revisions"}],"predecessor-version":[{"id":2162,"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/2119\/revisions\/2162"}],"wp:attachment":[{"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2119"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2119"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2119"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}