Notice: NVRAM invalid, possibly due to write erase.

readtm88readtm88 Posts: 13Member ■□□□□□□□□□
Hey i have a couple of 2501 routers I'm using to practice some of the commands with.

I have notieced this error comes up when i boot it up
Notice: NVRAM invalid, possibly due to write erase.

the router works fine as far as i can tell. i have upgraded from IOS version 11 to 12.3, but i wasn't sure if did something wrong.

Thanks in advance

Comments

  • shednikshednik Posts: 2,005Member
    once you configure your router try a
    copy run start
    
    that will save your running config to NVRAM...that should fix your issue for you.
  • bighornsheepbighornsheep Posts: 1,506Member
    readtm88 wrote:
    I have notieced this error comes up when i boot it up
    Notice: NVRAM invalid, possibly due to write erase.
    

    Todd Lammle's CCNA books will tell you that the "Notice" is a false positive, basically it's saying that the NVRAM was empty, and unless that notice still comes up after you have issue "copy run start", it basically means you don't have a startup-config. Or there was a "write erase" issued.
    Jack of all trades, master of none
  • NetwurkNetwurk Posts: 1,155Member ■■■■□□□□□□
    You can avoid that message by using del nvram:startup-config instead of wr erase when you erase the config. Of course someone else probably erased it before selling or scrapping it

    But as others have stated, it's a false positive.

    Do a copy run star or a wr mem and you'll be all set
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