A collection of technical problems and solutions that I want to save for the future

Reset or recover password lost or forgotten alcatel OS6850 switch

Connect with putty.exe to the switch, make sure you are connected (press Enter key couple times)

Then reboot and press enter key almost immediately to stop Auto boot

Wait for the message Hit any key to stop autoboot: 0 and hit any key. Hit any key to stop autoboot: 0

Then type the following commands

=> fatls ide :1,0

=> fatls ide :1,0 /network

=> fatdelete ide :1,0 /network/usertable5 OR usertable4

Now powercycle the switch or type “run miniboot” on the U-Boot; => Reboot or =>boot Now back switch will be factory default “admin/switch”.

1 Comment

  1. TP

    sadly, this effectively destroyed the switch. it just kept rebooting producing an error

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