4507:write erase then reload and NVRAM config is still there!
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-26-2009 12:20 PM - edited 03-06-2019 07:26 AM
This one I do not understand. Yesterday I did 'write erase' on (2) 4507, reload it and that worked fine, the configuration was deleted.
Today I have new set of 4507's. I do 'write erase', reload it, power cycle it and then I see the 'show run' configuration intact.
Image and platform is the same I successfully completed yesterday.
Any ideas what could be wrong?
(2) sup. iv engines like the one yesterday.
cat4500-entservicesk9-mz.122-40.SG.bin
- Labels:
-
Other Switching
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-26-2009 12:27 PM
When you reload, were you prompted to save config? and you said 'y'? If so, you copied the running config back to the startup config thus undoing the write erase routine.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-26-2009 12:43 PM
I did not. Here is the actual output below. Once it came back online, it showed up as 'mysw4-standby>' what is normal given the redundant Sup IV. The problem is that all running-config is intact there. Strange?
mysw4#wri erase
Erasing the nvram filesystem will remove all configuration files! Continue? [confirm]y[OK]
Erase of nvram: complete
mysw4#reload
Proceed with reload? [confirm]y
**********************************************************
* *
* Welcome to Rom Monitor for WS-X4515 System. *
* Copyright (c) 2002 by Cisco Systems, Inc. *
* All rights reserved. *
* *
**********************************************************
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-26-2009 01:54 PM
After typing 'write erase' - can you verify the 'show startup' no longer has the current config?
Can you also verify the config-register is set to 0x2102?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-27-2009 06:31 AM
Immediately after doing the 'write erase', confirm=yes, I do 'show startup' and
#show startup
startup-config is not present
'show ver' tells me that:
Configuration register is 0x2102
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-27-2009 06:38 AM
'Immediately after doing the 'write erase', confirm=yes, I do 'show startup' and
#show startup
startup-config is not present'
at this point, I would do a wri and then reload, see what you get!
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-27-2009 07:45 AM
So the intention is, we would copy from startup-config to running-config?
Since startup-config = nothing, we expect to clear it that way, right?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-27-2009 07:53 AM
well you could say that yeah
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
11-29-2015 11:22 PM
I have seen this response before with wr erase, try:
Edison's suggrestion first, then
erase nvram:startup-config
reload
NB: Do not save the running Config
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
08-27-2009 07:53 AM
Try the command 'erase nvram:' and make sure not to reply 'y' during reload.
__
Edison.
