ASR 920 boot fail

[Bekers]

Hello

A few days ago I wanted to install a cisco ASR920 DC.

Configured in advance I thought everything should go smoothly, but this wasn't the case.

The cisco ASR920 keeps rebooting, telling me it does not find any bootflash:/

With other types of cisco I can enter the ROMMON to do some troubleshouting and install a new IOS in order to make it work again.

But on ASR920 as I send a break to enter ROMMON I only get a message if I want to reload the cisco with its default configuration which doesn't work eather because there's no valid IOS anymore.

Can someone tell me how I can troubleshoot this problem and upload a new IOS?

Thanks in advance

[Hector Gustavo Serrano Gutierrez]

Hi, could you please share a few screenshots of what you see on the Router?

[Bekers]

As asked, some screenshots

[Bekers]

ASR keeps doing this.

He is in some sort of loop.

[Hector Gustavo Serrano Gutierrez]

From the screenshot, PASSWORD RECOVERY FUNCTIONALITY IS DISABLED message is seen.

At some point in time, the command no service password-recovery was applied to the running configuration and saved.

This was likely seen at that moment:

Router(config)#no service password-recovery
WARNING:
Executing this command will disable password recovery mechanism.
Do not execute this command without another plan for
password recovery.

Are you sure you want to continue? [yes/no]: yes
Router(config)#

Unfortunately, the instruction is stored in a non-volatile memory in the Router and prevents you from going into ROMMON.

You only have the possibility to restore the configuration from scratch but since the IOS image seems corrupted or removed from bootflash, the Router loops. You probable see the below at some point during the process:

PASSWORD RECOVERY IS DISABLED.
Do you want to reset the router to factory default
configuration and proceed [y/n] ?
Reset router configuration to factory default.

On this platform, bootflash is actually an embedded chip in the motherboard I believe. Hence, cannot be replaced or removed.

I'd suggest to open a Cisco TAC support case looking for a RMA of the unit.

Sorry, there seems to be no workaround.

HTH.

[Bekers]

You are right.

I could upload a IOS and afterwards I configured a basic script in order to make the ASR 920 visible once installed.

I did a reload as I always do to make sure it restarts like it should be and at the office it actually did.

But I had bad luck on the moment I've installed it on clients location, at that point he was giving this problem.

Maybe I missed something or maybe I did cut the power too soon after preconfiguration...

Luckily we have some backup ASR 920 in stock as we need to install it often, so I could resolve the problem with another one.

I hoped to find another solution than giving it back to sender, but thanks anyway for your help.

[Hector Gustavo Serrano Gutierrez]

No problem.
Sorry there was no workaround.
Regards.

[Leo Laohoo]

I really don't appreciate people disabling the password recovery in hoping that no one can break into the appliance without a valid password.
Unfortunately, there are web sites which provides accurate instruction(s) on how to force the appliance into password-recovery mode even though it is disabled.

[a.mitsova]

Thank you very much, Hector!!

[Leo Laohoo]

I want to see the exact boot-up process.

[hafizamhafizam76393]

hi can i ask why this happened??

UEA platform with 3670016 Kbytes of main memory

autoboot entry: NVRAM VALUES: bootconf: 0x2, autobootstate: 0
autobootcount: 8, autobootsptr: 0x0
Checking USB devices..
USB EHCI 1.00
scanning USB bus for devices..
1 USB Device(s) found
scanning bus for storage devices... 0 Storage Device(s) found
No USB storage device found..
Disk Error : Unable to read the drive'spartition table
boot: error executing "boot usb0:asr920-universalk9_npe.03.17.01.S.156-1.S1-std.bin"
autoboot: boot attempts exhausted after 8 tries
autoboot: boot failed, restarting...
þ

Exiting Init
UEA platform with 3670016 Kbytes of main memory

autoboot entry: NVRAM VALUES: bootconf: 0x2, autobootstate: 1
autobootcount: 0, autobootsptr: 0x0
Final autoboot attempt from default boot device...
esdhc_wait_for_status_clr(587) ERR: bitmask=0x00000002 not clr PRSSTAT = 0xff8d0206 i=100000
sd_read_sector(1467) failed
Disk Error : Unable to read the drive'spartition table
boot: cannot determine first file name on device "bootflash:"
autoboot: boot failed, restarting...
þ

Exiting Init
UEA platform with 3670016 Kbytes of main memory

autoboot entry: NVRAM VALUES: bootconf: 0x2, autobootstate: 2
autobootcount: 1, autobootsptr: 0x0
rommon 1 >

[Leo Laohoo]

---

@hafizamhafizam76393 wrote:

No USB storage device found..
boot: error executing "boot usb0:asr920-universalk9_npe.03.17.01.S.156-1.S1-std.bin"

---

Someone configured the router to boot the IOS from a USB thumb drive, however, the USB thumb drive is either missing or not supported. 

In ROMMON, post the complete output to the command "dir bootflash:".

[hafizamhafizam76393]

then after USB detected, here the script.. the it says kernel core dump: missing device/dev/bootflash1..then they repeat again..

USB Mass Storage device detected
1 Storage Device(s) found
Located asr920-universalk9_npe.03.17.01.S.156-1.S1-std.bin, start cluster is 2
#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.
#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.
#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.
#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.
#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.
#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.
#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.
#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.#.
Image loaded
Boot image size = 317133820 (0x12e713fc) bytes
Package header rev 2 structure detected
Calculating SHA-1 hash...done
validate_package: SHA-1 hash:
calculated 4114fa9b:70dd4aa1:017a6c0c:7bdcd931:2b2ed4c5
expected 4114fa9b:70dd4aa1:017a6c0c:7bdcd931:2b2ed4c5
Image validated
Passing control to the main image..
%IOSXEBOOT-4-DEVICE_MISSING: (rp/0): Integrity check for missing device
/dev/bootflash not performed.
%IOSXEBOOT-4-BOOT_ACTIVITY_LONG_TIME: (rp/0): prep_storage took: 30 seconds,
expected max time 10 seconds
%IOSXEBOOT-1-BOOTFLASH_FAILED_MISSING: (rp/0): Required Bootflash disk failed or
missing, reloading system
Kernel core dump: missing device /dev/bootflash1
System Bootstrap, Version 15.4(3r)S4, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 2014 by cisco Systems, Inc.
Compiled Fri 20-Jun-14 17:24 by alnguyen
Boot ROM0UEA platform with 3670016 Kbytes of main memory

[Leo Laohoo]

Raise a TAC Case.
This could be CSCso83288.

[hafizamhafizam76393]

can you explain.. i don't understand

tq