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Cisco Bug: CSCuo34379 - N5K/6K:NXOS upgrade by changing bootvariables & reload isn't recommended

Last Modified

Mar 05, 2019

Products (10)

  • Cisco Nexus 5000 Series Switches
  • Cisco Nexus 5596UP Switch
  • Cisco Nexus 5548P Switch
  • Cisco Nexus 6004 Switch
  • Cisco Nexus 6001 Switch
  • Cisco Nexus 5672UP Switch
  • Cisco Nexus 5020 Switch
  • Cisco Nexus 5548UP Switch
  • Cisco Nexus 5596T Switch
  • Cisco Nexus 5010 Switch

Known Affected Releases

5.2(1)N1(7) 6.0(2)N2(4) 7.0(1)N1(1)

Description (partial)

Symptom:
Configuration loss and other forwarding problems can be seen in Nexus 5000/5500/5600/6000 if switch
was upgraded by changing boot variables and reload. 

This bug is filed to print a warning message when user tries to change boot variables. The only officially 
supported upgrade process supported on Nexus 5000/5500/5600/6000 is by using "install all" process.

Conditions:
Nexus 5000/5500/5600/6000 switch was upgraded by changing boot variables and reload.

Related Community Discussions

Cisco Nexus 5548UP upgrade fail - version 7.2
Hi all, Just wanted to let you know we experienced the following problems when upgrading a 5548UP to Version 7.2 (no issu, plain disruptive reboot) From 5.2(1)N1(4) --> to 7.2(1)N1(1) NOTE: power sequencer module 1 is upgraded from 2.0 -> 3.0 during this process Images will be upgraded according to following table: Module       Image         Running-Version             New-Version  Upg-Required ------  ----------  ----------------------  ----------------------  ------------      1      system             ...
Latest activity: Nov 29, 2016
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
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