Users are unable to successfully authenticate at preboot on one system when using the correct password. The same user ID can authenticate successfully on a different system.
A DE emergency boot fails to resolve the problem when using
DETech recovery media.
MfeEpe.log (section 1) records the following error:
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Policy enforcement has completed |
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Writing user index |
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Session notification: EPEPC_DRIVER_SESSION_STANDBY |
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DRIVER |
Session notification: EPEPC_DRIVER_SESSION_CONSOLE_DISCONNECT |
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LoggingService |
=========================== |
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Service Started successfully |
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Service Started successfully |
The above log example is missing several expected messages after the log entry
Writing user index.
The following example includes the expected entries in that section of the
MfeEpe.log:
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Policy enforcement has completed |
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Writing user index |
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Session notification: EPEPC_DRIVER_SESSION_STANDBY |
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DRIVER |
Session notification: EPEPC_DRIVER_SESSION_CONSOLE_DISCONNECT |
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MfeEpeCredentialProviderServiceV2 |
MfeEpeCredentialProviderServiceV2c84fe7fe-1baa-11e5-833c-8086f2daf5e2 initialized successfully |
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MfeEpeCredentialProviderServiceV2
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Service Started Successfully |
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MfeEpeCredentialProviderServiceV2
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Service Stopped Successfully |
INFO |
EpoPlugin |
userHandler: handling UserUpdatesAndAcknowledgement response |
INFO |
StatusService |
Updating Drive Encryption users |
MfeEpe.log (section 2) records the following error:
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== Start of policy enforcement == |
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Policy enforcement has started |
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enforceUserPolicy: Dispatching enforce policy event. |
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EpoPlugin |
policyHandler: handling EnforcePolicy event |
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EpoPlugin |
policyHandler: checking for machine ID/ePO server change. |
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userHandler: handling AddLocalDomainUsers event |
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userHandler: handling AddLocalDomainUsers response |
INFO |
EpoPlugin |
userHandler: processing user updates/requests |
WARNING |
MfeEpePcEncryptionProviderPlugin |
MfeEpePcEncryptionProviderPlugin ..\..\..\Src\EpeGenUserHandler.cpp: EPE_gen_user_handler::get_updated_users: 530: [0xEE050014] Could not read \Users\updated.pb from the PBFS: expected identifier UpUs but found üpÝ |
INFO |
EpoPlugin |
epoAudit: dispatching audits to AgentHandler |
ERROR |
EpoPlugin |
userHandler: failed to perform user updates: [0xEE010002] [0xEE050014] Could not read \Users\updated.pb from the PBFS: expected identifier UpUs but found üp |
ERROR |
StatusService |
Failed to process a batch of user data received |
The above section of the
MfeEpe.log shows that the PreBoot File System (PBFS) is corrupted.