Cisco ISSU 9500 upgrade issue

[BorislavPenchev0962]

Hi,

we did upgrade from 16.12.5b to 17.3.4 as ISSU.found too late ISSU matrix telling is not supported...
during upgrade chassis fell into a constant bootloop which we had to break using ROMMON.

now we try and stuck at:
switch5#install abort issu

may you advise on how to proceed ?

output log attached: log.txt

Best Regards

[marce1000]

 - You may try this procedure : https://community.cisco.com/t5/switching/c9500-install-mode-issue/m-p/4509141#M514424

 M.

[balaji.bandi]

is this part of SVL ?

why it showing switch 5 ?

--- Starting preparation for software rollback ---
FAILED: No rollback file found for /bootflash/packages.conf

as per the information it not able to find the files, not sure what command you issued.

you need to break the SVL and put them in ROMMON do a traditional way upgrade and bring back to sVL.

[BorislavPenchev0962]

yes SVL - two switches, we are testing now , ps. switch 5 was example name

[Leo Laohoo]

---

@BorislavPenchev0962 wrote:

we did upgrade from 16.12.5b to 17.3.4 as ISSU.found too late ISSU matrix telling is not supported...
during upgrade chassis fell into a constant bootloop which we had to break using ROMMON.

---

Never, ever believe in the hype about ISSU &/or FSU/eFSU.  
ISSU &/or FSU/eFSU usually work in "corner cases" like labs or demos.  

IMPORTANT:  Upgrade to 17.3.5 instead.

Kindly refer to the PDF attached.  I have written an easy-to-understand procedure about how to upgrade the firmware of a stack of 9300 in Install Mode (the document even have pictures!).  

IMPORTANT:  Read the Release Notes carefully.  

[BorislavPenchev0962]

thank you for sharing this document

[BorislavPenchev0962]

l have few questions

should the ISSU have been accepted by 16. IOS if it was explicitly listed as improper upgrade ?

why we got stuck into in progress state ?

Best Regards

[Reza Sharifi]

Usually, ISSU does not work when you upgrade from one major version to another (16.12.5b to 17.3.4), and that is most likely why you got stuck in progress.

HTH

[Leo Laohoo]

@Reza Sharifi, 

Have a look at CSCwc54402, CSCwh29442.  Interesting bugs, no?

[Double U S]

I also seem to have the same problem with C9410 dual SUP with upgrade by DNA-C to 17.3.5 > 17.6.4

Redundant System Information :
------------------------------
Available system uptime = 2 hours, 21 minutes
Switchovers system experienced = 0
Standby failures = 4
Last switchover reason = none

Hardware Mode = Duplex
Configured Redundancy Mode = sso
Operating Redundancy Mode = sso
Maintenance Mode = Disabled
Communications = Up

Current Processor Information :
-------------------------------
Active Location = slot 5
Current Software state = ACTIVE
Uptime in current state = 2 hours, 21 minutes
Image Version = Cisco IOS Software [Bengaluru], Catalyst L3 Switch Software (CAT9K_IOSXE), Version 17.6.4, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2022 by Cisco Systems, Inc.
Compiled Sun 14-Aug-22 08:58 by mcpre
BOOT = bootflash:packages.conf;

Peer Processor Information :
----------------------------
Standby Location = slot 6
Current Software state = in progress to standby cold-config
Uptime in current state = 19 minutes
Image Version = Cisco IOS Software [Bengaluru], Catalyst L3 Switch Software (CAT9K_IOSXE), Version 17.6.4, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2022 by Cisco Systems, Inc.
Compiled Sun 14-Aug-22 08:58 by mcpre
BOOT = bootflash:packages.conf;
CONFIG_FILE =

Same outputs as in bug report for " 

show platform software iomd redundancy 

show redundancy states