Print | Rate this content

Advisory: HPE ProLiant MicroServer Gen10 - Red Hat Enterprise Linux 7 Will Not Boot if the Input/Output Memory Management Unit (IOMMU) Is Enabled Until the amd_iommo=on iommu=pt Boot Parameter is Added to Linux

SUPPORT COMMUNICATION - CUSTOMER ADVISORY

Document ID: a00022034en_us

Version: 1

Advisory: HPE ProLiant MicroServer Gen10 - Red Hat Enterprise Linux 7 Will Not Boot if the Input/Output Memory Management Unit (IOMMU) Is Enabled Until the amd_iommo=on iommu=pt Boot Parameter is Added to Linux
NOTICE: The information in this document, including products and software versions, is current as of the Release Date. This document is subject to change without notice.

Release Date: 2017-08-15

Last Updated: 2017-08-15


DESCRIPTION

On an HPE ProLiant MicroServer Gen10 running Red Hat Enterprise Linux 7, the server will not boot if the Input/Output Memory Management Unit (IOMMU) is enabled in the BIOS unless parameters are passed to the kernel. In addition, IOMMU messages will be logged to the OS log files.

The IOMMU is disabled by default on an HPE ProLiant MicroServer Gen10.

SCOPE

Any HPE ProLiant MicroServer Gen10 running Red Hat Enterprise Linux 7.

RESOLUTION

If IOMMU is enabled in the BIOS on an HPE ProLiant MicroServer Gen10 running Red Hat Enterprise Linux 7, use the following parameter passed to the kernel during boot:

amd_iommo=on iommu=pt

IOMMU is typically not needed unless using virtualization.

The IOMMU messages logged during boot can be safely ignored.




RECEIVE PROACTIVE UPDATES : Receive support alerts (such as Customer Advisories), as well as updates on drivers, software, firmware, and customer replaceable components, proactively via e-mail through HPE Subscriber's Choice. Sign up for Subscriber's Choice at the following URL: Proactive Updates Subscription Form.

NAVIGATION TIP : For hints on navigating HPE.com to locate the latest drivers, patches, and other support software downloads for ProLiant servers and Options, refer to the Navigation Tips document .

SEARCH TIP : For hints on locating similar documents on HPE.com, refer to the Search Tips document.


Hardware Platforms Affected: HPE ProLiant MicroServer Gen10 X3216 8GB-U 1TB 4LFF NHP SATA 200W PS Entry Server, HPE ProLiant MicroServer Gen10 X3421 16GB-U 4LFF NHP SATA 200W PS Performance Server
Operating Systems Affected: Red Hat Enterprise Linux 7 (AMD64/EM64T)
Software Affected: Not Applicable
Support Communication Cross Reference ID: SIK2196
©Copyright 2018 Hewlett Packard Enterprise Development LP
Hewlett Packard Enterprise Development shall not be liable for technical or editorial errors or omissions contained herein. The information provided is provided "as is" without warranty of any kind. To the extent permitted by law, neither HPE nor its affiliates, subcontractors or suppliers will be liable for incidental, special or consequential damages including downtime cost; lost profits; damages relating to the procurement of substitute products or services; or damages for loss of data, or software restoration. The information in this document is subject to change without notice. Hewlett Packard Enterprise Development and the names of Hewlett Packard Enterprise Development products referenced herein are trademarks of Hewlett Packard Enterprise Development in the United States and other countries. Other product and company names mentioned herein may be trademarks of their respective owners.

Legal Disclaimer: Products sold prior to the November 1, 2015 separation of Hewlett-Packard Company into Hewlett Packard Enterprise Company and HP Inc. may have older product names and model numbers that differ from current models.

Provide feedback

Please rate the information on this page to help us improve our content. Thank you!
Document title: Advisory: HPE ProLiant MicroServer Gen10 - Red Hat Enterprise Linux 7 Will Not Boot if the Input/Output Memory Management Unit (IOMMU) Is Enabled Until the amd_iommo=on iommu=pt Boot Parameter is Added to Linux
Document ID: emr_na-a00022034en_us-1
How helpful was this document?
How can we improve this document?
Note: Only English language comments can be accepted at this time.
Please wait while we process your request.