环境：Redhat Linux 7.6 + Oracle 11.2.0.4 RAC

现象：图像化安装过程中，按照提示执行root.sh脚本，报错中断。

1. 具体现象

[root@mm1903 ~]# /u01/app/11.2.0/grid/root.sh

Performing rootuser operation forOracle 11g

The following environment variables areset as:

ORACLE_OWNER=grid

ORACLE_HOME= /u01/app/11.2.0/grid

Enter thefull pathname of the local bin directory: [/usr/local/bin]:

The contentsof "dbhome" have not changed. No need tooverwrite.

The contentsof "oraenv" have not changed. No need tooverwrite.

The contentsof "coraenv" have not changed. No need tooverwrite.

Entries will be addedto the /etc/oratab file as needed by

Database Configuration Assistant when a database iscreated

Finished running generic partofroot script.

Now product-specific root actions will be performed.

Using configuration parameterfile: /u01/app/11.2.0/grid/crs/install/crsconfig_paramsUserignored Prerequisites during installation

Installing TraceFileAnalyzer

Adding Clusterware entriestoinittab

ohasd failedtostart

Failedto start the Clusterware. Last 20 lines of the alert logfollow:2020-03-20 11:46:34.715:[client(14293)]CRS-2101:The OLR was formatted using version 3.2020-03-20 11:57:25.130:[ohasd(15204)]CRS-0715:Oracle High Availability Service has timed out waiting for init.ohasd tobe started./u01/app/11.2.0/grid/perl/bin/perl -I/u01/app/11.2.0/grid/perl/lib -I/u01/app/11.2.0/grid/crs/install /u01/app/11.2.0/grid/crs/install/rootcrs.pl execution failed[root@mm1903 ~]#

Redhat 7.6搭建11g RAC时遇到报错：

[ohasd(15204)]CRS-0715:Oracle High Availability Service has timed out waiting for init.ohasd to be started.

2. 定位问题

官方文档：

Install of Clusterware fails while running root.sh on OL7 - ohasd fails to start (Doc ID 1959008.1)

由此篇官方文档可知，致使root.sh脚本执行时报的原因是因为Linux 7与Linux 6启动/重新启动进程并将其作为服务运行的方式不同。

Linux 6是由initd启动进程，而Linux 7则是由systemd启动进程。

在11.2.0.4 & 12.1.0.1安装GI时，无法加载集群资源进程，所以不会成功。

若想要在Linux 7上运行此两个版本GI软件，需要应用补丁程序18370031。

Because Oracle Linux 7 (and Redhat 7) use systemd rather than initd for starting/restarting processes and runs them as a service the current software install of both 11.2.0.4 & 12.1.0.1 will not succeed because the ohasd process does notstart properly.In OL7 it needs to be set up as a service and patch fix for Bug 18370031 needs to be applied for this , BEFORE you run root.sh when prompted .

3. 解决问题

此外还有中简单有效的解决方法，也是永久性的：

修改ohasd守护进程文件 vi /etc/init.d/ohasd

在文件中找到如这部分，在里面添加标注部分：

————————————————if [-r $AUTOSTARTFILE]

then

case `$CAT $AUTOSTARTFILE` inenable*)

$LOGERR "Oracle HA daemonis enabled forautostart."/bin/dd if=/var/tmp/.oracle/npohasd of=/dev/null bs=1024 count=1 & ---标注

my_crsctl start has -nowait

sleep600 ---标注

ps -ef | grep dd| grep hasd|awk '{print $2}'|xargs kill -9 ---标注

;;

disable*)

$LOGERR "Oracle HA daemonis disabled forautostart."

;;*)

$LOGERR "Oracle HA daemonis disabled bydamaged install."

$LOGERR "Unexpected settings foundin$AUTOSTARTFILE."

;;

esacelse————————————————

服务器再次重启后，稍等片刻集群即会正常启动。

正常加载日志：

[root@mm1903 ~]# /u01/app/11.2.0/grid/root.sh

Performing rootuser operation forOracle 11g

The following environment variables areset as:

ORACLE_OWNER=grid

ORACLE_HOME= /u01/app/11.2.0/grid

Enter thefull pathname of the local bin directory: [/usr/local/bin]:

The contentsof "dbhome" have not changed. No need tooverwrite.

The contentsof "oraenv" have not changed. No need tooverwrite.

The contentsof "coraenv" have not changed. No need tooverwrite.

Entries will be addedto the /etc/oratab file as needed by

Database Configuration Assistant when a database iscreated

Finished running generic partofroot script.

Now product-specific root actions will be performed.

Using configuration parameterfile: /u01/app/11.2.0/grid/crs/install/crsconfig_paramsUserignored Prerequisites during installation

Installing TraceFileAnalyzer

CRS-2672: Attempting to start 'ora.mdnsd' on 'mm1903'CRS-2676: Start of 'ora.mdnsd' on 'mm1903'succeeded

CRS-2672: Attempting to start 'ora.gpnpd' on 'mm1903'CRS-2676: Start of 'ora.gpnpd' on 'mm1903'succeeded

CRS-2672: Attempting to start 'ora.cssdmonitor' on 'mm1903'CRS-2672: Attempting to start 'ora.gipcd' on 'mm1903'CRS-2676: Start of 'ora.cssdmonitor' on 'mm1903'succeeded

CRS-2676: Start of 'ora.gipcd' on 'mm1903'succeeded

CRS-2672: Attempting to start 'ora.cssd' on 'mm1903'CRS-2672: Attempting to start 'ora.diskmon' on 'mm1903'CRS-2676: Start of 'ora.diskmon' on 'mm1903'succeeded

CRS-2676: Start of 'ora.cssd' on 'mm1903'succeeded

已成功创建并启动 ASM。

已成功创建磁盘组DATA。

clscfg:-install mode specified

Successfully accumulated necessary OCR keys.

Creating OCR keysfor user 'root', privgrp 'root'..

Operation successful.

CRS-4256: Updating the profile

Successful additionof voting disk64770444e9ea4fd6bf277198410f1b10.

Successfully replaced votingdisk group with +DATA.

CRS-4256: Updating the profile

CRS-4266: Voting file(s) successfully replaced

## STATEFile Universal Id File Name Disk group

------- ----------------- --------- ---------

1. ONLINE 64770444e9ea4fd6bf277198410f1b10 (/dev/asm-diskb) [DATA]Located1 voting disk(s).

CRS-2672: Attempting to start 'ora.asm' on 'mm1903'CRS-2676: Start of 'ora.asm' on 'mm1903'succeeded

CRS-2672: Attempting to start 'ora.DATA.dg' on 'mm1903'CRS-2676: Start of 'ora.DATA.dg' on 'mm1903'succeeded

Configure Oracle Grid Infrastructurefora Cluster ... succeeded[root@mm1903 ~]# su -grid

上一次登录：五 3月20 12:55:20 CST 2020pts/2上[grid@mm1903 ~]$

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