SanJose2(boot)>

Answered Question
Apr 29th, 2010

Turning on a 2501 lab router gives the following prompt, SanJose2(boot)> and enable mode: SanJose2(boot)#.  Why does (boot) show up?


Cisco Internetwork Operating System Software
IOS (tm) 3000 Bootstrap Software (IGS-BOOT-R), Version 11.0(10c), RELEASE SOFTWARE (fc1)
Copyright (c) 1986-1996 by cisco Systems, Inc.
Compiled Fri 27-Dec-96 17:33 by loreilly
Image text-base: 0x01010000, data-base: 0x00001000


ROM: System Bootstrap, Version 11.0(10c), SOFTWARE


SanJose2 uptime is 14 minutes
System restarted by power-on
Running default software


cisco 2500 (68030) processor (revision N) with 14336K/2048K bytes of memory.
Processor board ID 06160672, with hardware revision 00000000
X.25 software, Version 2.0, NET2, BFE and GOSIP compliant.
1 Ethernet/IEEE 802.3 interface.
2 Serial network interfaces.
32K bytes of non-volatile configuration memory.
8192K bytes of processor board System flash partition 1 (Read/Write)
8192K bytes of processor board System flash partition 2 (Read/Write)


Configuration register is 0x2101

Correct Answer by Neeraj Arora about 6 years 10 months ago

"(boot)" means boot mode.. this is kind of a Mini IOS... it means that the main IOS file is not loading up correctly. this Boot mode does not have full routing functionality, its just for Recovery purpose.


there are couple of things I would like to mention:

- Your router is too old, End of life

- The reason why IOS is not booting up properly could be: Bad IOS file in flash, Bad flash itself causing no boot situation, corrupt DRAM which is not able to load the IOS after it is decompressed


So to fix this, you can try the following:

1. Change the config register to 0x2102   (0x2142 is the code which bypasses config from NVRAM) and reload the router

2. if it still comes up in rommon or this Boot mode, then you would have to try and load another IOS to eliminate bad IOS file from the picture



You can follow this document for recovery:

ROMmon Recovery for the Cisco 2500, 3000, AS5100, and uBR900 Series Routers

http://www.cisco.com/en/US/products/hw/routers/ps233/products_tech_note09186a008009464c.shtml


For IOS download:

http://tools.cisco.com/support/downloads/pub/ImageList.x?relVer=12.2.29b&mdfid=268437930&sftType=IOS+Software&optPlat=&nodecount=23&edesignator=GD&modelName=Cisco+2501+Router&treeMdfId=268437899&modifmdfid=null&imname=&treeName=Routers&hybrid=null&imst=null



Hope the above information helps.


Neeraj

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Pronoy Dasgupta Thu, 04/29/2010 - 18:22

Hello Said,


Does the router successfully boot up or reach the rommon mode? If it does, could you provide me with the output of show version command from it?


Make sure to change the config-register value to 0x2102 from 0x2101

saidfarah Thu, 04/29/2010 - 20:54

I believe config-register value 0x2102 does not retrieve configuration that was stored in NVRAM.

Correct Answer
Neeraj Arora Thu, 04/29/2010 - 21:18

"(boot)" means boot mode.. this is kind of a Mini IOS... it means that the main IOS file is not loading up correctly. this Boot mode does not have full routing functionality, its just for Recovery purpose.


there are couple of things I would like to mention:

- Your router is too old, End of life

- The reason why IOS is not booting up properly could be: Bad IOS file in flash, Bad flash itself causing no boot situation, corrupt DRAM which is not able to load the IOS after it is decompressed


So to fix this, you can try the following:

1. Change the config register to 0x2102   (0x2142 is the code which bypasses config from NVRAM) and reload the router

2. if it still comes up in rommon or this Boot mode, then you would have to try and load another IOS to eliminate bad IOS file from the picture



You can follow this document for recovery:

ROMmon Recovery for the Cisco 2500, 3000, AS5100, and uBR900 Series Routers

http://www.cisco.com/en/US/products/hw/routers/ps233/products_tech_note09186a008009464c.shtml


For IOS download:

http://tools.cisco.com/support/downloads/pub/ImageList.x?relVer=12.2.29b&mdfid=268437930&sftType=IOS+Software&optPlat=&nodecount=23&edesignator=GD&modelName=Cisco+2501+Router&treeMdfId=268437899&modifmdfid=null&imname=&treeName=Routers&hybrid=null&imst=null



Hope the above information helps.


Neeraj

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