SAP license verification fails after upgrade to SLES12 SP5 due to system UUID change
This document (000019647) is provided subject to the disclaimer at the end of this document.
Environment
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server 12 SP5 for SAP
SUSE Linux Enterprise Server 12 SP5 for SAP
Situation
After an upgrade to SLES12 SP5, alphabetic characters in /sys/devices/virtual/dmi/id/product_uuid are switched to lower-case whereas previous SLES versions use upper-case characters in the UUID string.
This may impact case-sensitive tools that read this UUID, such as SAP license registration/verification checks.
This may impact case-sensitive tools that read this UUID, such as SAP license registration/verification checks.
Resolution
The problematic patch was reverted in the SLES 12 SP5 kernel 4.12.14-122.26.1 (released on 19 June 2020).
The kernel 4.12.14-122.26.1 or any newer kernels for SLES 12 SP5 contain the following change:
If you use the kernel 4.12.14-122.26.1 or any newer kernels for SLES 12 SP5, you should not encounter the described issue.
The kernel 4.12.14-122.26.1 or any newer kernels for SLES 12 SP5 contain the following change:
* Mon Jun 08 2020 jdelvare@suse.de
- Delete patches.suse/firmware-dmi_scan-use-lowercase-letters-for-uuid.patch
(bsc#1172472).
The letter case change breaks compatibility with the SAP license
generator and possibly others. It was drawn into SLE12-SP5 through
SLE15 while it wasn't meant to go there, so remove it now.
- commit 726940c
- Delete patches.suse/firmware-dmi_scan-use-lowercase-letters-for-uuid.patch
(bsc#1172472).
The letter case change breaks compatibility with the SAP license
generator and possibly others. It was drawn into SLE12-SP5 through
SLE15 while it wasn't meant to go there, so remove it now.
- commit 726940c
If you use the kernel 4.12.14-122.26.1 or any newer kernels for SLES 12 SP5, you should not encounter the described issue.
Cause
A patch was merged into the SLES12 SP5 kernels in order to comply with RFC4122.
Status
Reported to Engineering
Additional Information
This change will not be reverted in SLES15+ as this is considered the new standard.
A new SAP note will be created at a later time which addresses this problem.
Relevant RFC: https://tools.ietf.org/html/rfc4122
A new SAP note will be created at a later time which addresses this problem.
Relevant RFC: https://tools.ietf.org/html/rfc4122
Disclaimer
This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.
- Document ID:000019647
- Creation Date: 15-Jul-2021
- Modified Date:16-Jul-2021
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- SUSE Linux Enterprise Server
- SUSE Linux Enterprise Server for SAP Applications
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