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SimonZ
Beginner

Cisco 3650 boots continuously

Hello,

 

I have three cisco 3650 switches that lost power this morning.

Two booted as usual but one of them is stuck in a boot loop.

 

When connected via console I see this.


Booting...
Interface GE 0 link down***ERROR: PHY link is down
The "IP_ADDR" environment variable is not set.

Getting rest of image
Reading full image into memory...Check base package header ...: done = 16384
Getting rest of image
Reading full image into memory....done
Reading full base package into memory...: done = 22300199
Bundle Image
--------------------------------------
Kernel Address : 0x53740388
Kernel Size : 0x34e9e1/3467745
Initramfs Address : 0x53a8ed69
Initramfs Size : 0x119d0be/18469054
Compression Format: mzip

Bootable image at @ ram:0x53740388
Bootable image segment 0 address range [0x81100000, 0x81b8adc0] is in range [0x80180000, 0x90000000].
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@boot_system: 518
Loading Linux kernel with entry point 0x816902d0 ...
Bootloader: Done loading app on core_mask: 0xf

### Launching Linux Kernel (flags = 0x5)

 


Booting...

 

I fail to see how I can interrupt this process or what is actually wrong.

Also I could not find any case here where the boot process was interrupted so early.

 

Anybody seen this before and know how to resolve this?

 

 

Thanks,

Simon

5 REPLIES 5
Julio E. Moisa
VIP Mentor

Hi,

It could be a software failure after the blackout, you could make a record of all the process with Putty in order to see what is going on. 




>> Marcar como útil o contestado, si la respuesta resolvió la duda, esto ayuda a futuras consultas de otros miembros de la comunidad. <<

Hi Julio,

 

thanks a lot for your input!

 

What you see is actually all that is happening on the switch.

Except there is another level I'm not aware of.

 

How would you do the recording you advised?

 

Many Thanks,

Simon

Hi

You are welcome,

Please open the attachment, with that you will create a notepad file so every line you see on the screen will be saved on that file. 

Probably you will need to re upload the image on the device or open a case with the Cisco TAC in order to verify it deeply based on the information saved in the notepad file.

:-)




>> Marcar como útil o contestado, si la respuesta resolvió la duda, esto ayuda a futuras consultas de otros miembros de la comunidad. <<
Leo L
VIP Community Legend

CSCva30394

SimonZ
Beginner

Hi,

 

thanks again to everyone who tried to help.

Hoping this will help others.

Even after setting the switch in express setup to be able to get to the IOS again it was not possible to work on it. 

In the end I had to replace the hardware.

 

Best,

Simon