Cisco Aironet 2800 Image Recovery

[KSI]

I have several AP2802E with boot issues and I would like to reload the image. I have done image recovery on Cisco Aironet 2600 and 2700 before. Cisco Aironet 2800 has a completely different OS. Does anyone have a document with image recovery process for AP2800E. Is there are any similar commands to check and repair flash such as fsck -test flash: ? Please note that I am working with a Lightweight Images.

[balaji.bandi]

When you boot AP, what you see on the screen ( on console ?)  - until they are Mobilioty express loaded ?

[KSI]

Basically it is going through the boot loop. However here is the screen of the initial boot process:

BootROM - 1.78
Booting from SPI flash, Secure mode
BootROM: RSA Public key verification PASSED
BootROM: CSK block signature verification PASSED
BootROM: Boot header signature verification PASSED
BootROM: Box ID verification PASSED
BootROM: JTAG is disabled


General initialization - Version: 1.0.0
Detected Device ID 6920
Master bootloder version 1.24
High speed PHY - Version: 2.0
BoardId = 0x21board SerDes lanes topology details:
| Lane # | Speed| Type |
------------------------------|
| 1 | 0 | SGMII1 |
| 2 | 5 | PCIe1 |
| 4 | 5 | PCIe2 |
| 5 | 0 | SGMII2 |
-------------------------------
:** Link is Gen1, check the EP capability
PCIe, Idx 1: Link upgraded to Gen2 based on client cpabilities
:** Link is Gen1, check the EP capability
PCIe, Idx 2: Link upgraded to Gen2 based on client cpabilities
High speed PHY - Ended Successfully
DDR4 Training Sequence - Ver TIP-0.23.(Sublib 0.8)0
DDR4 Training Sequence - Switching XBAR Window to FastPath Window
DDR4 Training Sequence - Ended Successfully
BootROM: Image checksum verification PASSED
BootROM: Boot image signature verification PASSED

____ _
/ ___|(_) ___ ___ ___
| | | |/ __| / __|/ _ \
| |___ | |\__ \| (__| (_) |
\____||_||___/ \___|\___/
_ _ ____ _
| | | | | __ ) ___ ___ | |_
| | | |___| _ \ / _ \ / _ \| __|
| |_| |___| |_) | (_) | (_) | |_
\___/ |____/ \___/ \___/ \__|
** LOADER **


U-Boot 2013.01-gf899470 (Aug 16 2018 - 15:50:45) SDK version: 2015_T2.0p10

Board: Barbados-2K
SoC: MV88F6920 Rev A1
running 2 CPUs
CPU: ARM Cortex A9 MPCore (Rev 1) LE
CPU 0
CPU @ 1800 [MHz]
L2 @ 900 [MHz]
TClock @ 250 [MHz]
DDR4 @ 900 [MHz]
DDR4 32 Bit Width,FastPath Memory Access, DLB Enabled, ECC Disabled
DRAM: 1 GiB

RST I2C0
NAND: 256 MiB
SF: Detected MX25L3205D with page size 64 KiB, total 4 MiB
PCI-e 1 (IF 0 - bus 0) Root Complex Interface, Detected Link X1, GEN 2.0
PCI-e 2 (IF 1 - bus 1) Root Complex Interface, Detected Link X1, GEN 2.0

Map: Code: 0x3fed9000:0x3ffad5c4
BSS: 0x3ffef080
Stack: 0x3f9c8f20
Heap: 0x3f9c9000:0x3fed9000
U-Boot Environment: 0x00100000:0x00110000 (SPI)

Board configuration:
| port | Interface | PHY address |
|--------|------------|--------------|
| egiga1 | SGMII | 0x01 |
| egiga2 | SGMII | 0x00 |

[Flavio Miranda]

Hi

  If this AP is lightweight, they should get the image from the WLC and you should not worry about it unless you are trying to join them in a wlc and you are failing.

[KSI]

Thank you for your suggestion but my AP2802E is resetting and rebooting before it gets connected to our Cisco Wireless controller. I am looking for a process of testing and repair of flash drive and image recovery process for AP2800 since it has a different OS from previous AP2700 and AP2600.

[Flavio Miranda]

But this is the expected behavior of a lightweight AP when it does not joing the wlc. It will try, fail, rebóot and try again.

 Which wlc do you have and which version?

And show the command

>show ap bundle

[Leo Laohoo]

If the AP boots up in u-boot, contact Cisco TAC and organize for an RMA. 

The process to upload the firmware (per AP) via console & u-boot is about 45 minutes and requires TAC access.  

It is faster to get the AP RMA-ed.  

[KSI]

Thank you for your suggestions, however all our units of Cisco AP2802E are out of warranty and out of contract support. I need to figure out how to do it without TAC support.

I am reloading software on AP2602E and AP2702E using TFTP server on regular basis. I am looking for reloading process for AP2802E. It has an OS that is completely different from previous models. I would like to have a feedback from someone who has an experience with that process.

[Leo Laohoo]

---

@KSI wrote:
Thank you for your suggestions, however all our units of Cisco AP2802E are out of warranty and out of contract support. I need to figure out how to do it without TAC support.

---

Oh sweet summer child, please carefully read the Warranty Information section of the 2800 Data Sheet: 

The Cisco Aironet 2800 Series Access Points come with a limited lifetime warranty that provides full warranty coverage of the hardware for as long as the original end user continues to own or use the product. The warranty includes 10-day advance hardware replacement and ensures that software media are defect-free for 90 days. 

---

[Rich R]

@Leo Laohoo already answered above ^^^ "requires TAC access"