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NVRAM: Unable to read configuration

I am facing a problem while saving the configuration on Cisco 3750E. When i try to save below error appears

wr

NVRAM: Unable to read configuration. Try again later.

The switches are in stack. So i checked the configuration lock message as well, It says that the deivce is free to configure but still i could'nt able to save it. The ouput s as below

sh configuration lock

Parser Configure Lock

---------------------

Owner PID                        : -1

User                             : unknown

TTY                              : -1

Type                             : NO LOCK

State                            : FREE

Class                            : unknown

Count                            : 0

Pending Requests                 : 0

User debug info                  :

Session idle state               : TRUE

No of exec cmds getting executed : 0

No of exec cmds blocked          : 0

Config wait for show completion  : FALSE

Remote ip address                : Unknown

Lock active time (in Sec)        : 0

Lock Expiration timer (in Sec)   : 0

Current running IOS :        c3750e-universalk9-mz.122-55.SE3.bin

6 REPLIES
Cisco Employee

NVRAM: Unable to read configuration

Vijay,

This is expected behavior. When we exit config-mode we need to send the
configuration  to all switches in the stack, so that every switch will have
config on any switchovers. 

As the config size increases it might take slightly more time. 

Try to do it again it should work for you. Else use the secure crt you will not face this issue.

HTH

Regards

Inayath

New Member

Re: NVRAM: Unable to read configuration

Inayath,

Thanks for the reply.

Tried many times but still the same,i am using secure crt only.

      

Can i know what is that Owner PID : -1 means?

Cisco Employee

NVRAM: Unable to read configuration

Vijay,

Whats the firmware running on the devices?

And also have you disable the http server?

Regards

Inayath

New Member

Re: NVRAM: Unable to read configuration

Firmware is Current running IOS :c3750e-universalk9-mz.122-55.SE3.bin

I have disabled http server as well.

Can i know what is that Owner PID : -1 means?

I found the cause and the reason, Totally 8 switches are stacked and when i give write command without modifying the config it works fine. But when i modify it wont work for few seconds, later it does. Can i know the reason with the cisco document

Cisco Employee

NVRAM: Unable to read configuration

I found the cause and the reason, Totally 8 switches are stacked and when i give write command without modifying the config it works fine. But when i modify it wont work for few seconds, later it does. Can i know the reason with the cisco document

Answer: As I said this is the expected behavour.

{

When we exit config-mode we need to send the
configuration  to all switches in the stack, so that every switch will have
config on any switchovers. 

As the config size increases it might take slightly more time

}

We have recorded internal bug for the same.

==================

HTH

Regards

Inayath

*PLz rate all usefull posts.

New Member

Re: NVRAM: Unable to read configuration

Inayathulla,

Thanks for the answer.

It could be helpful, if u share a cisco document which says the below

When we exit config-mode we need to send the configuration  to all switches in the stack, so that every switch will have

config on any switchovers.

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