Help with Ubr900 cable router password recovery 1

[SQL2KDBA69]

I did password recovery on th ubr900 and this is what i did -
connect with hyperterminal - press the break key - rommon 1>confreg 0x0 - rebooted router - reset passwords. now i dont know what to set the config-register back to. Please help.

 

[tecnikall]

just do the following:

r>en
r#conf t
configuration-register 0x2102
end
sh ver
on next reload the conf register should be 0x2102, reload ... you will be promted to save, save and that should be it.

 

[SQL2KDBA69]

thanks but im still in the Router(Boot)> mode i think my IOS Image file is corupt. Do you have a ubr920-k1v4y5-mz.121-7.bin image file.

 

[tecnikall]

hi, in boot mode can you do a show flash: to see if you have a image in there? If you do have a image then use the command verify flash:<filename> to see if corrupted or not. Also, check for any bootsytem commands which may point to a different image, if all fails you will need a new image, with the new image I will not be able to help you out... cheers.

 

[SQL2KDBA69]

this is the result i got from the verify flash: command - "verified flash:" then it went back to the Router(boot)# prompt.

this is the first few lines of my startup-config file.

Using 741 out of 131072 bytes
!
version 12.1
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Router
!
boot system flash ubr920-k1v4y5-mz.121-7.bin
enable secret 5 $1$Bq3D$XX/41lbsNu3hqROBIQXy40


this is my flash dir :

System flash directory:
File Length Name/status
1 2957028 ubr920-k1v4y5-mz.121-7.bin
[2957092 bytes used, 1106140 available, 4063232 total]
3968K bytes of processor board System flash (Read/Write)

this is what i get from sh boot

Boot flash directory:
File Length Name/status
1 1318256 ubr920-rboot-mz_121-1_T.bin
[1572864 bytes used, 0 available, 1572864 total]
1536K bytes of processor board Boot flash (Read/Write)

this is from sh ver

Cisco Internetwork Operating System Software
IOS (tm) 920 Software (UBR920-RBOOT-M), Version 12.1(1)T, RELEASE SOFTWARE (fc1
)
Copyright (c) 1986-2000 by cisco Systems, Inc.
Compiled Sun 19-Mar-00 22:19 by ccai
Image text-base: 0x800100A0, data-base: 0x80278FD8

ROM: System Bootstrap, Version 12.0(6r)T3, RELEASE SOFTWARE (fc1)

Router uptime is 5 hours, 10 minutes
System returned to ROM by reload
System image file is "bootflash:ubr920-rboot-mz_121-1_T.bin"

cisco uBR920 CM (MPC850) processor (revision 4.d) with 15872K/1024K bytes of mem
ory.
Processor board ID FAA0440Q1HQ
1 Ethernet/IEEE 802.3 interface(s)
1 Cable Modem network interface(s)
3968K bytes of processor board System flash (Read/Write)
1536K bytes of processor board Boot flash (Read/Write)

Configuration register is 0x2102


maybe im missing someting but is still boot to BootFlash and not to flash where the IOS Image is. thanks

 

[tecnikall]

hi, it looks like we only have one image only in the flash thus the boot system command is not needed. Please remove the boot system command:
r#conf t
no boot system flash ubr920-k1v4y5-mz.121-7.bin
end
wr mem
reload

I did check you image and the amount of ram and flash needed run it and eveything looks ok.... If the router still fails to load the main image without any boot system command, I will need a capture of your booting process... Something else we can try is to send the router into rommon mode and from there to use the boot command to load the main image ignoring the boot image.... I did notice that your boot image is on a T train and the main image is on a plain train... sometimes the router will not boot properly if the boot image and the main image are not on the same train....
rommon1>boot flash:ubr920-k1v4y5-mz.121-7.bin

pls note no space between flash:<imagename>...

If the router comes up now we will have either to upgrade the boot image or the main image to be on the same train... cheers.

 

[SQL2KDBA69]

Cool the rommon1>boot flash:ubr920-k1v4y5-mz.121-7.bin
worked it back to the full IOS. what image and how do i get the Image.

thanks alot.

 

[tecnikall]

I am happy to see you back into the action. Did you try to remove the boot statement command first? If so, I am making the assumption that it didn't work, just confirm. One more thing, can you try to reload the router one more time ignoring the startup config file: just change the conf reg to 0x2142 and reload.... If the router comes up fine there is no need to replace the bootimage nor the main image and we could suspect something in the configs which stops the router to load. On the other hand if the router ends up in the boot mode I would try to change the boot image from T train just to the same train as you main image. I will be more than happy to help you with the upgrade but I can't help you getting the image. Maybe somebody else will... Cheers and Good Luck!!!

 

[SQL2KDBA69]

i tried to change the conf reg and it didnot work so i have to get a bootimage for that train i have. which i dont know what train my main image has. can you tell me what train i need or maybe the file name i need and do i use the copy tftp bootflash command to upgrade it. thanks for you help

 

[tecnikall]

Hello there, after all it looks like you need the following bootimage:

ubr920-rboot-mz.121-7c.bin

At this stage your router should work fine with your existing image, the only incoveniance is that you will have to manually boot it from rommon mode until you get this bootimage. Cheers!

 

[SQL2KDBA69]

ok i got a 1600-r and i have a problem with the boot Image 12.0 is older that the IOS 21.1 does any one have a 12.1 boot image for the 1600-r series. also i have no idea on how to configure the T1 Wic card. Please help.

 

[tecnikall]

for this platform 1600-r you don't need to upgrade the boot image, it comes with the router on a chip which is non upgradable. Pls be more specific on the T1 card configs...

 

[SQL2KDBA69]

this is the model number for the T1 Card - WIC-1DSU-T1