IOS image automatically erased from Flash

[aryarahul]

Hi,

I have a cisco 2821 Router , it was operating fine but for the past 2 days its having a weird problem.

During operation suddenly the connection is lost and when checked through console there is no IOS image on the Router (all configuration is erased and the router boots up in rommon mode and there is no IOS on dir Flash:

I installed ios on it through tftp but again after some random time the IOS is automatically erased from flash

i checked the config register value and its fine at 0x2102.

Kindly Help.

[janickle]

Hi,

I cannot think of anything that would cause the flash to delete like that but there is a way to secure your startup and IOS to the flash in case of deletion.  You can use the “secure boot-image” and “secure boot-config” commands to ensure that your startup-config and IOS reside on the flash.  I have included a link to more documentation on these commands below:

http://www.cisco.com/en/US/docs/ios/12_3t/12_3t8/feature/guide/gtrescfg.html

I hope this helps.

Thank you,

Jason Nickle

[Richard Burts]

I have had some issues where ISR routers (like the 2800 routers) appear to have lost their IOS image files and the problems turns out to be that the compact flash is no longer correctly seated in its slot. Is it possible that the problem of the original poster might be something like that?

HTH

Rick

[aryarahul]

Thanks Richard , i checked tht part as well

[aryarahul]

Thanks for the reply Jason..

I completed the mentioned steps , now lets see how it goes.

One more thing i have noticed that sometime suddenly the ip route command to the next hop also automatically is erased from the router ,  all the other settings remain intact.

Due to that i cannot ping the next hop and everything goes down...i observed that i made 2 changes in the configuraion including the ip route command , but suddenly after 3 days those 2 changes were rolled back automatically

what can be the cause of this ?

[aryarahul]

Issue still exists ??

anybody has any clue to it ???