Hi All,
I am trying to upgrade WLC 2504 LAN controller IOS version from 7.6.130.0 to 8.5.1.171.0. I understand that there is an upgrade path for this. 7.6.130.0 --> 8.3.X.X --> 8.5.X.X. However, there is an information regarding to FUS version upgrade needed for IOS upgrade in the release note.
===========================================================================
In Release note for Wireless LAN Controller Field Upgrade Software for Release 1.9.0.0, it says:
===========================================================================
Field Recovery Image is upgraded from 7.0.112.21 to 7.6.101.1
Bootloader is upgraded to 1.020
Offline field Diagnostic is upgraded from 0.9.28 to 0.9.35
===========================================================================
In Release note for Wireless LAN Controller Field Upgrade Software for Release 2.0.0.0, it says:
===========================================================================
Bootloader version is upgraded to 1.0.20
Firmware PIC will be 20.0
Wireless LAN Controller and AP model
WLC Model: AIR-CT2500-K9
AP Model: AIR-CAP2602I-S-K9
Based on my show sysinfo, WLC field Recovered Image version already upgraded to 7.6.101.1, Firmware version is PIC 20.0 and Bootloader version is 1.0.20. Therefore, I am confused whether I should upgrade FUS version or not. As my output seems to show my FUS version is 2.0.0.0. However, I cannot confirm. Can anyone help me on this? Thanks
(Cisco Controller) >show sysinfo
Manufacturer's Name.............................. Cisco Systems Inc.
Product Name..................................... Cisco Controller
Product Version.................................. 7.6.130.0
Bootloader Version............................... 1.0.20
Field Recovery Image Version..................... 7.6.101.1
Firmware Version................................. PIC 20.0
