Router reloads with an old IOS

Unanswered Question
Aug 7th, 2007
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The router was reloaded but came up with an old (12.3

(5a) IOS that does not support the SDSL card providing a backup uplink.

On a further reboot the correct IOS came back up and the config was amended in order that the SDSL interface could be used again.

The boot statement of the device contained the correct IOS - Version 12.4


The router is a 2651XM running c2600-entservicesk9-mz.124-8.bin



boot system flash c2600-entservicesk9-mz.124-8.bin


Is there a bug that can cause that?

I have included below a show flash

System flash directory:

File Length Name/status

addr fcksum ccksum

1 17088624 c2600-is-mz.123-5a.bin

0x40 0xB765 0xB765

2 26121948 c2600-entservicesk9-mz.124-8.bin

0x104C0F0 0xED17 0xED17

[43210700 bytes used, 6596656 available, 49807356 total]

49152K bytes of processor board System flash (Read/Write)

Chip Bank Code Size Name

1 1 8917 8192KB INTEL 28F640J3

2 1 8917 8192KB INTEL 28F640J3

1 2 8918 16384KB INTEL 28F128J3

2 2 8918 16384KB INTEL 28F128J3


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glen.grant Wed, 08/08/2007 - 05:37
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Register is right . You might to see if you have adequate RAM to use 12.4 , do a show version and see if you have enough as 12.4 is considerably bigger in most cases . If you do a show boot or show bootvar what does it say ?

wochanda Wed, 08/08/2007 - 07:14
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Your boot statement looks a little funny to me. See if one of these works better:

boot system flash flash:c2600-entservicesk9-mz.124-8.bin


boot system flash:c2600-entservicesk9-mz.124-8.bin


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