SLES installer may hang when updating megaraid_sas driver during SLES installation
This document (7022804) is provided subject to the disclaimer at the end of this document.
Environment
SUSE Linux Enterprise Server 12 Service Pack 3 (SLES 12 SP3)
Situation
When updating the megaraid_sas driver during SLES 12 SP3 installation, the installer may hang on the interface when searching for storage devices.
Resolution
This issue can be resolved by using a new version of the SLES 12 SP3 kernel that includes a patch for this bug. Use SLES 12 SP3 maintenance kernel update version 4.4.92-6.18.1 or newer.
There is also a work around that does not involve updating the kernel. The work around is to only update the megaraid_sas driver after completing the installation of SLES.
Steps to update the driver after SLES installation:
1. Open a terminal and change to root user.
2. Change directory:
cd /run/media/(USERNAME)/CDROM/linux/suse/x86_64-sles12/install
3. Install new megaraid_sas driver:
rpm -ivh lsi-megaraid_sas-kmp-xxx.x86_64.rpm
4. Reboot the system.
Cause
This issue is caused by a bug in the megaraid_sas driver that is in SLES 12 SP3. When the driver is unloaded it does not completely release the pci io resource. This causes the installer to hang when attempting to search for storage devices and load the new megaraid_sas driver.
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:7022804
- Creation Date: 02-Apr-2018
- Modified Date:03-Mar-2020
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- SUSE Linux Enterprise Server
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