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Cisco 1841 Corupt on bootup 1

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krock22

krock22

Technical User
Feb 6, 2010
48
US
My cisco 1841 boots up and displays this

4¯µ>3þ¶£´> 4¯µ>3þ¶£´>4¯µ>3þ6§õ4¯µ>3þ6§õ¶£´>ü4¯µ>3þ¶£´>4¯µ>3þ6§õ¶£´>4¯µ>3þ6§õþ4¯µ
>3þ²Ÿ7ò6§õ4¯µ>3þ¶£´> 4¯µ>3þ¶£´>4¯µ>3þ6§õ4¯µ>3þ6§õ¶£´>ü4¯µ>3þ¶£´>4¯µ>3þ6§õ¶£´>4¯µ>3þ6§õþ4¯µ
>3þ²Ÿ7ò6§õ4¯µ>3þ¶£´> 4¯µ>3þ¶£´>4¯µ>3þ6§õ4¯µ>3þ6§õ¶£´>ü4¯µ>3þ¶£´>4¯µ>3þ6§õ¶£´>4¯µ>3þ6§õþ4¯µ
>3þ²Ÿ7ò6§õ

that is all that it displays. when pressing enter I get more of those weird caracters.

Anyone familiar with this?
 
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Looks like the wrong baud rate to me, but not sure. Try different baud rates, or look into resetting DUART to reset BAUD back to 9600...

/

tim@tim-laptop ~ $ sudo apt-get install windows
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package windows...Thank Goodness!
 
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Do I do that through the hyperterminal???
 
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Baud for the term emulator, yes. Resetting the router to 9600, no. That is usually done on the router. The only ones I have seen a DUART reset are the 2600 series (but I thought I did this on a 1700 series?). I have found no documentation on DUART reset on the 1800/2800 series. So, your only option seems to try different baud rates (in HyperCrap) until the proper output is seen.

I did find a very useful link on rommon commands and uses...


/

tim@tim-laptop ~ $ sudo apt-get install windows
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package windows...Thank Goodness!
 
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OK. Now I found the different baud rates and it got me to the roomon> screen

I typed in

roomon 1> confreg 0x2102 or 0x102 (I know the configuration register on this router was 0x2102
roomon 2> reset

once it reboots it comes right back to
roomon 1> promt

what is happening at this point?

Thanks
 
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What are the messages you get along the way?

Post a

rommon1>dir flash:

/

tim@tim-laptop ~ $ sudo apt-get install windows
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package windows...Thank Goodness!
 
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System Bootstrap, Version 12.3(8r)T9, RELEASE SOFTWARE (fc1)
Technical Support: Copyright (c) 2004 by cisco Systems, Inc.
PLD version 0x10
GIO ASIC version 0x127
c1841 processor with 131072 Kbytes of main memory
Main memory is configured to 64 bit mode with parity disabled


Readonly ROMMON initialized
flash: CompactFlash not present.

System Bootstrap, Version 12.3(8r)T9, RELEASE SOFTWARE (fc1)
Technical Support: Copyright (c) 2004 by cisco Systems, Inc.
PLD version 0x10
GIO ASIC version 0x127
c1841 processor with 131072 Kbytes of main memory
Main memory is configured to 64 bit mode with parity disabled


Readonly ROMMON initialized
flash: CompactFlash not present.

System Bootstrap, Version 12.3(8r)T9, RELEASE SOFTWARE (fc1)
Technical Support: Copyright (c) 2004 by cisco Systems, Inc.
PLD version 0x10
GIO ASIC version 0x127
c1841 processor with 131072 Kbytes of main memory
Main memory is configured to 64 bit mode with parity disabled


Readonly ROMMON initialized
rommon 1 > confreg 0x2102


You must reset or power cycle for new config to take effect
rommon 2 > reset

System Bootstrap, Version 12.3(8r)T9, RELEASE SOFTWARE (fc1)
Technical Support: Copyright (c) 2004 by cisco Systems, Inc.
PLD version 0x10
GIO ASIC version 0x127
c1841 processor with 131072 Kbytes of main memory
Main memory is configured to 64 bit mode with parity disabled


Readonly ROMMON initialized
flash: CompactFlash not present.

System Bootstrap, Version 12.3(8r)T9, RELEASE SOFTWARE (fc1)
Technical Support: Copyright (c) 2004 by cisco Systems, Inc.
PLD version 0x10
GIO ASIC version 0x127
c1841 processor with 131072 Kbytes of main memory
Main memory is configured to 64 bit mode with parity disabled


Readonly ROMMON initialized
flash: CompactFlash not present.

System Bootstrap, Version 12.3(8r)T9, RELEASE SOFTWARE (fc1)
Technical Support: Copyright (c) 2004 by cisco Systems, Inc.
PLD version 0x10
GIO ASIC version 0x127
c1841 processor with 131072 Kbytes of main memory
Main memory is configured to 64 bit mode with parity disabled


Readonly ROMMON initialized
rommon 1 >

I could do this all day long
 
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lol, you have no flash in the router. The flash is where the image resides.

CCNP
 
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lol stupid question I think it came out on the side
 
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No such thing as stupid questions...

ISP, stop it...I know what you're thinkin', bro...lol

/

tim@tim-laptop ~ $ sudo apt-get install windows
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package windows...Thank Goodness!
 
Upvote 0 Downvote
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