Red Hat Enterprise Linux 8 8.1 Release Notes Release Notes for Red Hat Enterprise Linux 8.1 Last Updated: 2020-04-06 Red Hat Enterprise Linux 8 8.1 Release Notes Release Notes for Red Hat Enterprise Linux 8.1 Legal Notice Copyright © 2020 Red Hat, Inc. The text of and illustrations in this document are licensed by Red Hat under a Creative Commons Attribution–Share Alike 3.0 Unported license ("CC-BY-SA"). An explanation of CC-BY-SA is available at http://creativecommons.org/licenses/by-sa/3.0/ . In accordance with CC-BY-SA, if you distribute this document or an adaptation of it, you must provide the URL for the original version. Red Hat, as the licensor of this document, waives the right to enforce, and agrees not to assert, Section 4d of CC-BY-SA to the fullest extent permitted by applicable law. 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The OpenStack ® Word Mark and OpenStack logo are either registered trademarks/service marks or trademarks/service marks of the OpenStack Foundation, in the United States and other countries and are used with the OpenStack Foundation's permission. We are not affiliated with, endorsed or sponsored by the OpenStack Foundation, or the OpenStack community. All other trademarks are the property of their respective owners. Abstract The Release Notes provide high-level coverage of the improvements and additions that have been implemented in Red Hat Enterprise Linux 8.1 and document known problems in this release, as well as notable bug fixes, Technology Previews, deprecated functionality, and other details. Table of Contents Table of Contents .P .R . O. V. .I D. .I N. .G . F. .E .E . D. .B . A. .C . K. O. .N . R. .E .D . .H . .A .T . .D . O. C. .U . M. E. .N . T. .A .T . I.O . .N . 5. .C . H. .A . P. .T .E . R. 1.. .O . .V . E. .R .V . I. E. W. 6. Installer and image creation 6 Red Hat Enterprise Linux System Roles 6 Infrastructure services 6 Security 6 Kernel 6 File systems and storage 6 Dynamic programming languages, web and database servers 7 Compiler toolsets 7 Identity Management 7 Desktop 7 In-place upgrade from RHEL 7 to RHEL 8 7 Additional resources 8 Red Hat Customer Portal Labs 8 .C . H. .A . P. .T .E . R. 2. A. .R . C. .H . I. T. E. .C . T. .U . R. .E . S. 9. .C . H. .A . P. .T .E . R. 3. I. M. .P . O. R. .T .A . N. T. .C . H. A. .N . G. .E . S. T. O. .E .X . T. .E . R. .N . A. .L . .K .E . R. .N . E. .L . .P . A. .R .A . M. E. .T . E. R. .S . 1.0 . New kernel parameters 10 Updated kernel parameters 12 New /proc/sys/kernel parameters 13 New /proc/sys/net parameters 13 Updated /proc/sys/fs parameters 13 Updated /proc/sys/kernel parameters 14 .C . H. .A . P. .T .E . R. 4. .D . I.S . T. R. .I .B .U . .T .I O. N. O. F. .C . O. N. .T . E. .N . T. .I .N . .R . H. .E . L. .8 . 1. 5. 4.1. INSTALLATION 15 4.2. REPOSITORIES 15 4.3. APPLICATION STREAMS 16 .C . H. .A . P. .T .E . R. 5. R. .H . E. .L . .8 .. .1 ..1 .R . E. .L . E. A. .S . E. 1. 7. 5.1. NEW FEATURES 17 .C . H. .A . P. .T .E . R. 6. .R .H . .E .L . .8 . ..1 ..0 . .R . E. .L .E . A. .S . E. .2 . 0. 6.1. NEW FEATURES 20 6.1.1. Installer and image creation 20 6.1.2. Software management 20 6.1.3. Subscription management 20 6.1.4. Infrastructure services 21 6.1.5. Security 22 6.1.6. Networking 25 6.1.7. Kernel 26 6.1.8. Hardware enablement 28 6.1.9. File systems and storage 29 6.1.10. High availability and clusters 31 6.1.11. Dynamic programming languages, web and database servers 32 6.1.12. Compilers and development tools 35 6.1.13. Identity Management 40 6.1.14. Desktop 42 6.1.15. Graphics infrastructures 43 6.1.16. The web console 43 1 Red Hat Enterprise Linux 8 8.1 Release Notes 6.1.17. Red Hat Enterprise Linux System Roles 44 6.1.18. Virtualization 45 6.2. NEW DRIVERS 46 Network Drivers 46 Graphics Drivers and Miscellaneous Drivers 46 Storage Drivers 47 6.3. UPDATED DRIVERS 47 Network Driver Updates 47 Graphics and Miscellaneous Driver Updates 48 Storage Driver Updates 48 6.4. BUG FIXES 48 6.4.1. Installer and image creation 48 6.4.2. Shells and command-line tools 50 6.4.3. Security 50 6.4.4. Networking 52 6.4.5. Kernel 54 6.4.6. Hardware enablement 56 6.4.7. File systems and storage 56 6.4.8. Dynamic programming languages, web and database servers 57 6.4.9. Compilers and development tools 58 6.4.10. Identity Management 58 6.4.11. Desktop 60 6.4.12. Graphics infrastructures 60 6.4.13. The web console 60 6.4.14. Virtualization 60 6.4.15. Supportability 61 6.5. TECHNOLOGY PREVIEWS 61 6.5.1. Networking 61 6.5.2. Kernel 62 6.5.3. Hardware enablement 63 6.5.4. File systems and storage 64 6.5.5. High availability and clusters 66 6.5.6. Identity Management 67 6.5.7. Graphics infrastructures 68 6.5.8. Red Hat Enterprise Linux System Roles 68 6.5.9. Virtualization 69 6.6. DEPRECATED FUNCTIONALITY 71 6.6.1. Installer and image creation 71 6.6.2. Software management 72 6.6.3. Security 72 6.6.4. Networking 73 6.6.5. Kernel 74 6.6.6. Hardware enablement 74 6.6.7. File systems and storage 74 6.6.8. Desktop 75 6.6.9. Graphics infrastructures 75 6.6.10. The web console 75 6.6.11. Virtualization 75 6.6.12. Deprecated packages 76 6.7. KNOWN ISSUES 76 6.7.1. Installer and image creation 76 6.7.2. Software management 78 6.7.3. Shells and command-line tools 79 2 Table of Contents 6.7.4. Infrastructure services 79 6.7.5. Security 79 6.7.6. Networking 85 6.7.7. Kernel 85 6.7.8. Hardware enablement 87 6.7.9. File systems and storage 87 6.7.10. Dynamic programming languages, web and database servers 88 6.7.11. Compilers and development tools 88 6.7.12. Identity Management 88 6.7.13. Desktop 90 6.7.14. Graphics infrastructures 93 6.7.15. The web console 93 6.7.16. Virtualization 93 .C . H. .A . P. .T .E . R. 7. N. O. .T . A. .B . L. E. C. .H . A. .N . .G . E. .S . T. .O . C. .O . N. .T . A. .I N. .E . R. .S . .9 .6 . .C . H. .A . P. .T .E . R. 8. .I N. .T . E. R. .N . .A . T. I.O . .N . A. .L . I.Z . A. .T .I O. N. .9 . 7. 8.1. RED HAT ENTERPRISE LINUX 8 INTERNATIONAL LANGUAGES 97 8.2. NOTABLE CHANGES TO INTERNATIONALIZATION IN RHEL 8 97 .A .P . P. .E . N. .D . I. X. A . .L .I S. .T . .O . F. T. .I C. .K . E. T. .S . .B . Y. C. .O . M. P. .O . N. E. N. T. .9 .9 . ..