Re: Rollback steps from Everest-16.06.06 -> Gibraltar-16.12.4 for Catalyst 3650

loytakmem · ‎10-05-2020

Require to upgrade Cisco 3650 from Everest-16.06.06 -> Gibraltar-16.12.4. The 16.12 release note below list the step of upgrading process. Part of the process will remove the existing and new images.

Question : What is the process/steps of recovery in situation that this didn't go well and require to "roll-back" back to original version 16.06.06.

Upgrading from Cisco IOS XE Denali 16.x.x in Install Mode

[ref] https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3850/software/release/16-12/release_notes/ol-16-12-3850.html#task_g24_vgq_k3b

Leo Laohoo · ‎10-05-2020

Post the complete output to the following command:

dir

loytakmem · ‎10-05-2020

Output

Directory of flash:/

54210  -rw-         19167872  May 15 2019 01:28:17 +00:00  cat3k_caa-guestshell.16.06.06.SPA.pkg
54211  -rw-         27926203  May 15 2019 01:28:15 +00:00  cat3k_caa-rpbase.16.06.06.SPA.pkg
54212  -rw-        336437880  May 15 2019 01:28:17 +00:00  cat3k_caa-rpcore.16.06.06.SPA.pkg
54213  -rw-          5051008  May 15 2019 01:28:15 +00:00  cat3k_caa-srdriver.16.06.06.SPA.pkg
54214  -rw-         16263804  May 15 2019 01:28:15 +00:00  cat3k_caa-webui.16.06.06.SPA.pkg
54215  -rw-             4742  May 15 2019 01:28:35 +00:00  packages.conf
77441  drwx             4096  Jul 18 2019 04:51:23 +00:00  .installer
54216  -rw-              185  Jul 18 2019 04:51:23 +00:00  bootloader_evt_handle.log
85185  drwx             4096  May 15 2019 01:35:44 +00:00  core
   11  drwx             4096  May 15 2019 01:41:24 +00:00  .prst_sync
15489  drwx             4096  May 15 2019 01:30:57 +00:00  .rollback_timer
23233  drwx             4096  May 15 2019 01:31:06 +00:00  gs_script
30977  drwx             4096  Jul 18 2019 04:51:40 +00:00  dc_profile_dir
54217  -rw-           128103  Jul 18 2019 04:52:00 +00:00  memleak.tcl
54218  -rw-          2097152  Jul 17 2020 12:07:49 +00:00  nvram_config
54219  -rw-          2097152  Jul 17 2020 12:07:49 +00:00  nvram_config_bkup
54220  -rw-               35  Jul 22 2019 12:14:34 +00:00  pnp-tech-time
54221  -rw-           104642  Jul 22 2019 12:14:37 +00:00  pnp-tech-discovery-summary
54222  -rw-              976  Nov 22 2019 01:53:10 +00:00  vlan.dat

1621966848 bytes total (1126948864 bytes free)

Do let me know what we looking for from the output to determine the steps. TIA

Leo Laohoo · ‎10-05-2020

Before starting the unpacking process, enter this command:

more flash:packages.conf | b for NOVA

Notice all the right-hand are pointing to 16.6.6?

Once the unpacking of 16.12.4 is complete, run the same command again and it should be pointing to 16.12.4.

However, if you execute the "dir" command again, the old packages.conf pointing to the 16.6.6 gets renamed to "packages.conf.00-" or something like that.

To roll back to 16.6.6, just rename that file from "packages.conf.00-" to "packages.conf" and reboot the switch.

loytakmem · ‎10-07-2020

Thanks Leo for the explanation.

Found a technote which searching more on packages.conf.00-

[REF] Catalyst 3850 Series Switch Upgrade, Management, and Recovery Techniques
https://www.cisco.com/c/en/us/support/docs/switches/catalyst-3850-series-switches/117552-technote-cat3850-00.html