Data Domain: "error: invalid PBKDF2 password" Displayed During System Boot

Samenvatting: “error: invalid PBKDF2 password.”

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Symptomen

  • During system boot, the following message is displayed:
    error: invalid PBKDF2 password
  • The message appears while GRUB is processing its configuration.
  • The system continues to boot normally.
  • No administrator intervention is required.

    Oorzaak

    This behavior is expected and occurs as part of a GRUB security-hardening mechanism implemented by DDOS.

    To prevent unauthorized editing of GRUB boot entries, DDOS replaces the GRUB password hash in the configuration with a dynamically generated string that is intentionally not a valid PBKDF2 hash.

    When GRUB parses the configuration during startup, it detects the invalid hash format and displays:

    error: invalid PBKDF2 password

    Despite the message, all configured boot menu entries remain marked as unrestricted and can boot normally without authentication.

    During a DDOS installation or upgrade, the default GRUB password entry in the source grub.cfg file is replaced with a dynamically generated value. Because this value is regenerated, it changes following a DDOS installation, reinstallation, or upgrade.

    Oplossing

    No action is required.

    This message is expected behavior and does not indicate a system fault.

    • The system continues to boot normally.
    • There is no impact to DDOS functionality.
    • There is no security impact.
    • The GRUB menu protection mechanism continues to function as intended.
    • The message is cosmetic and may be observed during boot or troubleshooting activities.

    If the system boots successfully and no additional boot errors are reported, the "error: invalid PBKDF2 password" message can be safely ignored.

    Getroffen producten

    Data Domain
    Artikeleigenschappen
    Artikelnummer: 000502447
    Artikeltype: Solution
    Laatst aangepast: 04 sep. 2026
    Versie:  1
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