Unable To Clear Startup Configuration / NVRAM

Aug 14, 2012

I was working on a Cisco 2600 series router earlier today running IOS 12.4. I ran into an issue where I could not clear the startup-config. I tried:

router#erase startup-config
router#reload
router#erase nvram
router#reload

[code]....

each time IP addresses and things got cleared but other aspects did not which should have been. In the nvram there were several files:

Router#dir
Directory of nvram:/
126 -rw- 2143 <no date> startup-config
127 ---- 5 <no date> private-config
128 -rw- 2143 <no date> underlying-config
1 ---- 49 <no date> persistent-data
2 -rw- 0 <no date> ifIndex-table

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