A “Checksum Mismatch” error in WIPERAPP occurs when the verification process detects inconsistencies between the expected wipe pattern and the actual data read from the drive. This issue can arise due to incomplete wiping, bad sectors, mismatched verification settings, or drive-specific behaviors (such as SSD firmware handling). Below are the key steps to resolve this issue:
If the wipe process is interrupted before completion, certain sectors may not be properly overwritten, leading to a checksum mismatch. Allow WIPERAPP to complete the wiping operation without interruptions. If the error persists, rerun the wipe from the beginning.
Drives with damaged or failing sectors may not store data accurately, causing checksum errors during verification.
Ensure that the verification method in WIPERAPP matches the selected wiping pattern. If a different pattern was used for verification, reconfigure WIPERAPP to align with the pattern used during wiping. Mismatched settings can lead to false checksum mismatches.
For detailed steps on modifying verification settings, refer to the WIPERAPP Settings Documentation.
For SSDs and self-encrypting drives (SEDs), standard overwriting methods may not work effectively due to firmware-level encryption and wear leveling. Use Secure Erase or manufacturer-specific erasure tools to reset the drive at the firmware level for a more reliable wipe.