I am unable to erase disk0: from ROMMON mode on ASA 5525-X firewall. The operation starts but ends with errors nb_biosdisk err 3. Does it mean that the internal flash memory is corrupted, could not be repaired and must be replaced?
Thanks a lot.
ASA 5525-X, ROMMON Version2.1(9)8
Indeed, there is an issue with the internal flash memory.Attempt 'erase all' from the rommon mode. Also, try to reboot the device, to validate if the flash gets recovered.
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