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Oracle® Linux 6

Release Notes for Oracle Linux 6.7

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March 2021

Table of Contents

1 New Features and Changes
1.1 Supported Kernels
1.2 Unbreakable Enterprise Kernel Release 2
1.3 Unbreakable Enterprise Kernel Release 3
1.3.1 Notable New Features of UEK R3
1.4 OpenSCAP
1.5 Load Balancing and High Availability
1.6 Hyper-V Daemons
1.7 Enhanced SSSD Support for Active Directory
1.8 Removing the RHCK from a System
1.9 Technology Preview Features
1.9.1 Technology Preview Features in UEK R2
1.9.2 Technology Preview Features in UEK R3
1.9.3 Technology Preview Features in RHCK
2 Fixed and Known Issues
2.1 Fixed Issues
2.1.1 Receive Packet Steering Errors
2.1.2 Using SELinux with Linux Containers
2.1.3 XFS File System Panic
2.2 Known Issues
2.2.1 Updating Oracle Linux Fails if the kernel-uek Package Cannot Be Updated
2.2.2 avahi-daemon Fails to Start with UEK R2
2.2.3 Booting UEK R2 as a PVHVM Guest
2.2.4 Btrfs File System Issues
2.2.5 Console Appears to Hang when Booting
2.2.6 Default I/O Scheduler
2.2.7 Default NFS Mount Options
2.2.8 Default Reverse Path Filtering Mode Affects Certain Oracle Products
2.2.9 dm-cache and dm-era
2.2.10 DTrace Issues
2.2.11 Enabling FIPS Mode
2.2.12 Error message Following First Reboot on an HP ProLiant Server
2.2.13 ext4 Inline Data
2.2.14 gcc-libraries Package
2.2.15 ib_core Fails to Unload when the RDMA Service Is Stopped
2.2.16 Incorrect Package Count
2.2.17 Intel TCO Watchdog Timer Messages
2.2.18 Journal Corruption in Virtualized Systems
2.2.19 Kdump Service Configuration
2.2.20 Kdump Service Cannot Be Enabled by Using system-config-kdump Under UEK R3
2.2.21 kernel-uek-headers Package
2.2.22 Linux Containers (LXC)
2.2.23 Mellanox ConnectX Drivers
2.2.24 mlx4_core Conflicts Between the mlnx_en and ofa Packages
2.2.25 mlx4_ib Insertion Error when RDMA Starts
2.2.26 Oracle Clusterware Fails to Start on ASM Storage with SELinux Enabled
2.2.27 Oracle RDBMS Server 11gR2 Preinstall Settings Not Visible After Installation
2.2.28 Oracle VM 3.0 Guests Crash During Oracle Database Installation
2.2.29 Oracle VM 3.3.1 32-bit Guests with UEK R2 Panic
2.2.30 Paravirtualized Drivers in a Hardware Virtualized Guest
2.2.31 Post-Installation Anaconda Errors
2.2.32 RHCK Panics When an ext4 File System Is Defragmented
2.2.33 sched_yield() Settings for the Completely Fair Scheduler
2.2.34 Setting the Serial Console in a Hardware Virtualized Guest
2.2.35 Shared Receive Queue Panic
2.2.36 Support for crashkernel=auto with Xen
2.2.37 Support for Large Memory 32-bit Systems
2.2.38 Unable to Register Oracle Linux Guest with ULN
2.2.39 Unable to Register with ULN After First Reboot
2.2.40 XFS File System Corruption
2.2.41 xguest Package Not Installable with SELinux Disabled
3 Upgrading to Oracle Linux 6 Update 7
3.1 Supported Upgrade Paths
3.2 Obtaining Oracle Linux 6 Update 7 Packages
3.2.1 About the Unbreakable Linux Network
3.2.2 About Oracle Yum Server
3.2.3 About Oracle Linux Installation Media
3.3 Upgrading the Unbreakable Enterprise Kernel
3.4 Applying the Update
A Packages
A.1 Packages Added to the Upstream Release
A.2 Packages Modified from the Upstream Release
A.3 Packages Removed from the Upstream Release
A.4 Packages Added by Oracle
B Deprecated Packages