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CentOS默认不在Oracle官方支持的操作系统之列。ACFS这个特性在安装Grid时也没有安装。尝试安装时，会提示”Not Supported”

安装Oracle Enterprise Linux的内核

上传一个OEL 7.3的ISO文件

用ISO做一个本地yum源

安装

yum-config-manager --disable ol7*

yum-config-manager --enable ol7_UEKR3

sed -i 's/DEFAULTKERNEL=kernel/DEFAULTKERNEL=kernel=uek/' /etc/sysconfig/kernel

yum install kernel-uek kernel-uek-devel

安装之后：

grub2-editenv list

init 6

打GRID软件补丁

补丁：25078431

1.替换掉opatch工具

p6880880_180000_Linux-x86-64.zip

这里所有节点的opatch都要替换

2. 解压补丁包

unzip /u01/p25078431_122010_Linux-x86-64.zip -d /tmp

3. 打补丁

/u01/app/12.2.0/grid/OPatch/opatchauto apply /tmp/25078431

两个节点都要打

4. 修改Oracle配置文件

修改$GRID_HOME/lib/osds_acfslib.pm

参考：

https://blog.csdn.net/weiwangsisoftstone/article/details/78813518

[root@rac01 lib]# vi osds_acfslib.pm

  # Testing for "oraclelinux_release", etc prevents us from dropping

  # into the code below from other RH based distros like CentOS, for example.

  if ((defined($release)) &&                     # Redhat or OEL if defined

      (($release =~ /^redhat-release/) ||        # straight RH

       ($release =~ /^enterprise-release/) ||    # Oracle Enterprise Linux

        ($release =~ /^centos-release/) ||        # CentOS hack 

       ($release =~ /^oraclelinux-release/)))    # Oracle Linux

启用ACFS模块

[root@ncrac4 lib]# acfsroot install

ACFS-9300: ADVM/ACFS distribution files found.

ACFS-9314: Removing previous ADVM/ACFS installation.

ACFS-9315: Previous ADVM/ACFS components successfully removed.

ACFS-9307: Installing requested ADVM/ACFS software.

ACFS-9308: Loading installed ADVM/ACFS drivers.

ACFS-9321: Creating udev for ADVM/ACFS.

ACFS-9323: Creating module dependencies - this may take some time.

ACFS-9154: Loading 'oracleoks.ko' driver.

ACFS-9154: Loading 'oracleadvm.ko' driver.

ACFS-9154: Loading 'oracleacfs.ko' driver.

ACFS-9327: Verifying ADVM/ACFS devices.

ACFS-9156: Detecting control device '/dev/asm/.asm_ctl_spec'.

ACFS-9156: Detecting control device '/dev/ofsctl'.

ACFS-9309: ADVM/ACFS installation correctness verified.

[root@ncrac4 lib]# acfsload start -s

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