Troubleshooting
Problem
Installation failure due to an invalid digital signature
Symptom
Installation will fail with the message below indicating that a Windows cabinet (*.cab) file is corrupt.
Error 1330.A file that is required cannot be installed because the cabinet file C:\temp\db2\Windows\BASE0000.cab has an invalid digital signature. This may indicate that the cabinet file is corrupt.
The DB2 installation log will contain:
MSI (s) (B8:68) [09:22:57:577]: Validating digital signature of file 'C:\temp\db2\Windows\BASE0000.cab'
MSI (s) (B8:68) [09:22:57:577]: Hash of signed file 'C:\temp\db2\Windows\BASE0000.cab' does not match hash authored in the installation package
MSI (s) (B8:B4) [09:22:57:577]: Note: 1: 1330 2: C:\temp\db2\Windows\BASE0000.cab 3: 0
MSI (s) (B8:B4) [09:22:57:577]: Product: IBM Data Server Client - DB2 --Error 1330.A file that is required cannot be installed because the cabinet file C:\temp\db2\Windows\BASE0000.cab has an invalid digital signature. This may indicate that the cabinet file is corrupt. Error 0 was returned by WinVerifyTrust.
The location of the DB2 installation log can be found in the Related URL Collecting Data For Installation Problems.
[{"Product":{"code":"SSEPGG","label":"Db2 for Linux, UNIX and Windows"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Component":"Install\/Migrate\/Upgrade - Install\/Setup - Command Line","Platform":[{"code":"PF033","label":"Windows"}],"Version":"9.8;9.7;9.5;9.1;8","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]
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Document Information
Modified date:
30 April 2025
UID
swg21496604