Firmware Image Shuffle

(2026-09-23)

Our internal standard on updates is to make sure the current firmware version is in image slot 2, and to then upload the new version into image slot 1.

! 'show version':
!
! -----------------------------------------------------------------------------
! AOS-CX
! (c) Copyright 2017-2026 Hewlett Packard Enterprise Development LP
! -----------------------------------------------------------------------------
! Version      : LL.10.17.1020
! Build Date   : 2026-06-18 05:22:14 UTC
! Build ID     : AOS-CX:LL.10.17.1020:36ba34ab6315:202606180447
! Build SHA    : 36ba34ab63151a43f4dc4310753d3011c5d5edf8
! Hot Patches  :
! Active Image : secondary
!
! Service OS Version : LL.01.17.0001
! BIOS Version       : LL.01.0003
!
!
! 'show images':
!
! ---------------------------------------------------------------------------
! AOS-CX Primary Image
! ---------------------------------------------------------------------------
! Version : LL.10.12.0006
! Size    : 576 MB
! Date    : 2023-05-31 22:52:00 UTC
! SHA-256 : a15000ec6f7e84e569d772c69c9977c2cedd3f3106311cf6ef9e33efbe1ee462
!
! ---------------------------------------------------------------------------
! AOS-CX Secondary Image
! ---------------------------------------------------------------------------
! Version : LL.10.17.1020
! Size    : 600 MB
! Date    : 2026-06-18 05:22:14 UTC
! SHA-256 : cb0dedb0f6394960ae5dafed527b1d06fa84a4e16eb92808a0c6f06b21e6e480
!
! Default Image : secondary
! Boot Profile Timeout : 5 seconds

Note the values of Active Image (which tells you which image was booted last) and Default Image (which tells you which image will get booted next)

So at upgrade time:

copy primary secondary
copy tftp:<> primary
boot set-default primary
reboot

In case of fire:

boot set-default secondary
reboot