linux7上安装RAC的问题
在redhat7上安装Oracle RAC 11.2.0.4的时候，在运行root.sh是出现报错，
pa user cert Adding Clusterware entries to inittab ohasd failed to start Failed to start the Clusterware. Last 20 lines of the alert log follow: 2017-11-10 09:41:48.349: [client(6981)]CRS-2101:The OLR was formatted using version 3.
特意找了这篇文章，共享在此处：
In this Document
| Purpose |
| Scope |
| Details |
| References |
APPLIES TO:
Oracle Database - Standard Edition - Version 11.2.0.4 to 11.2.0.4 [Release 11.2]Oracle Database - Enterprise Edition - Version 11.2.0.4 to 11.2.0.4 [Release 11.2]
Linux x86-64
PURPOSE
This note explains the requirements that need to be met for a successful installation of Oracle 11gR2 RDBMS release 11.2.0.4 on Red Hat Enterprise Linux 7.0 (or higher 7.x version), 64-bit (x86-64). These guidelines apply to cluster (RAC) or standalone / single instances.
It is NOT the purpose of this NOTE to repeat every "how-to" step that is presented in the 11gR2 Installation Guide manual. For example this NOTE does not include how to create the Linux OS account named "oracle", nor does it cover how to set environment variables. Both are adequately covered in Chapter 2 "Oracle Database Pre-installation Requirements" of the 11gR2 Installation Guide manual.
You can download Oracle 11.2.0.4 software from My Oracle Support (patch 13390677)
SCOPE
This procedure is meant for those planning/installing Oracle 11gR2 RDBMS release 11.2.0.4.0 (or higher 11.2.0.x version) on Red Hat Enterprise Linux 7.0 (or higher 7.x version) on the 64-bit (x86-64) platform. Since it is the expressed goal to keep Oracle Linux (OL) functionally IDENTICAL to RHEL, this NOTE is also completely applicable to 64-bit (x86-64) OL 7.0 (or higher 7.x version).
This procedure is not meant for those planning/installing Grid Infrastructure (GI) or any other Oracle products.
DETAILS
Requirements for installing Oracle 11gR2 RDBMS release 11.2.0.4 64-bit on RHEL7 or OL7 64-bit (x86_64)
NOTE: The above recommendations (from the 11.2 Database installation guide) are MINIMUM recommendations for installations. Further RAM and swap space may be required to tune/improve RDBMS performance.
c.) 1.0 GB (1024MB) of disk space (and less than 2TB of disk space) in the /tmp directory.
d.) approximately 4.4 GB of local disk space for the database software.
e.) approximately 1.7 GB of disk space for a preconfigured database that uses file system storage (optional).
2. Refer Note:236826.1 for details on certified filesystems for Oracle Database.
19692824 as documented in Note 1965691.1.
REFERENCES NOTE:401167.1 - Defining a "default RPMs" installation of the Oracle Linux (OL) OS
NOTE:567506.1 - Maximum SHMMAX values for Linux x86 and x86-64
NOTE:1962046.1 - Missing pdksh-5.2.14 package during Oracle database 11.2.0.4 install on Oracle Linux 7
NOTE:376183.1 - Defining a "default RPMs" installation of the RHEL OS
NOTE:236826.1 - Supported and Recommended File Systems on Linux
NOTE:851598.1 - Master Note of Linux OS Requirements for Database Server
NOTE:605251.1 - Where To Locate The Oracle RDBMS Installation Guides, Upgrade Guides and Release Notes
NOTE:1304727.1 - Certification Information for Oracle Database on Linux x86-64
