Clould Control 13c在OEL 8.3以上版本无法安装的解决方案
Author: Bo Tang
1. 故障描述：
Cloud Control 13.5在Oracle Enterprise Linux 8.0/8.1/8.2都能够正确安装成功，但是在8.3以上的版本无法安装成功（在Redhat Linux和CentOS Linux对应的版本上现象完全相同）。 详细的遇到问题的安装过程如下： 1） 正常进行安装（前9个步骤都是常规操作，跟着安装向导执行即可，已忽略）：
2） 点击“Install”按钮：
3） 进度条86%出现问题（如果遇到了，不要放弃并关闭此窗口）：
分析View Log链接，
在弹出窗口中的日志的5378行发现：
INFO: oracle.sysman.top.oms:------------------------------------------ INFO: oracle.sysman.top.oms:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/emagentSDK.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/emCfg.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/emInstaller.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/osdt_core.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/osdt_cert.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/oraclepki.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/orapki.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/emPluginHelper.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/ngouihelper.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/generalPortQueries.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/ojdbc8.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oracle_common/modules/oracle.help/oracle_ice.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/installcommon-swing_1.0.0b.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/installcommon-flow_1.0.0b.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/online_help/em_install_help.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/online_help/em_install_help_de.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/online_help/em_install_help_es.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/online_help/em_install_help_fr.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/online_help/em_install_help_it.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/online_help/em_install_help_ja.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/online_help/em_install_help_ko.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/online_help/em_install_help_pt_BR.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/online_help/em_install_help_zh_CN.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/emCoreSDK.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/emprereqkit.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/emConfig.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oracle_common/modules/oracle.xdk/xml.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oracle_common/modules/oracle.nlsrtl/orai18n-utility.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/modules/stager-launch.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/modules/emocmclnt-14.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/modules/emocmcommon.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/modules/emocmclnt.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/modules/com.bea.core.apache.log4j.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/modules/log4j-core.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oracle_common/regexp.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/emCoreCommon.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/em/agentInstallerPreChecks.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/modules/installer-launch.jar:/tmp/OraInstall2022-01-18_10-09-15AM/oui/modules/xml.jarINFO: oracle.sysman.top.oms:Starting OMS ...INFO: oracle.sysman.top.oms:Executing the command: /u01/app/oracle/product/13.5.0/middleware/bin/emctl start omsINFO: oracle.sysman.top.oms:Oracle Enterprise Manager Cloud Control 13c Release 5 INFO: oracle.sysman.top.oms:Copyright (c) 1996, 2021 Oracle Corporation. All rights reserved.INFO: oracle.sysman.top.oms:Starting Oracle Management Server...INFO: oracle.sysman.top.oms:WebTier Could Not Be Started.INFO: oracle.sysman.top.oms:Error Occurred: WebTier Could Not Be Started.INFO: oracle.sysman.top.oms:Please check /u01/app/oracle/product/13.5.0/gc_inst/em/EMGC_OMS1/sysman/log/emctl.log for error detailsSEVERE: oracle.sysman.top.oms:Starting of OMS failed.INFO: oracle.sysman.top.oms:Starting export oms config...INFO: oracle.sysman.top.oms:Executing command: /u01/app/oracle/product/13.5.0/middleware/bin/emctl exportconfig oms -dir /u01/app/oracle/product/13.5.0/gc_inst/em/EMGC_OMS1/sysman/backupINFO: oracle.sysman.top.oms:Oracle Enterprise Manager Cloud Control 13c Release 5 INFO: oracle.sysman.top.oms:Copyright (c) 1996, 2021 Oracle Corporation. All rights reserved.INFO: oracle.sysman.top.oms:Enter Enterprise Manager Root (SYSMAN) Password : Enter Enterprise Manager Root (SYSMAN) Password : ExportConfig started...INFO: oracle.sysman.top.oms:Backup directory is /u01/app/oracle/product/13.5.0/gc_inst/em/EMGC_OMS1/sysman/backupINFO: oracle.sysman.top.oms:Machine is Admin Server host. Performing Admin Server backup...INFO: oracle.sysman.top.oms:Exporting emoms properties...INFO: oracle.sysman.top.oms:Exporting secure properties...INFO: oracle.sysman.top.oms:
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2. 解决办法：
经过分析出错时的日志，发现是/usr/lib64/libk5crypto.so.3这个库文件造成的。这个库与kerberos5加密有关，影响网页服务器。但是令人奇怪的是8.3以上的版本中这个库的版本并没有升级，仍旧是3.1。这说明8.0/8.1/8.2上/usr/lib64/libk5crypto.so.3虽是3.1版本，但是其二进制在8.3以上的版本中发生了些微变化。按照以下方法进行应急操作（由于Linux系统使用的是libk5crypto.so.3.1，与我们这样操作不会冲突，所以最多就是报告“ldconfig: /lib64/libk5crypto.so.3 不是符号链接”而已，对Linux本身的安全性和稳定性不会有影响）。
[root@classroom lib64]# ls -l libk5crypto.so.3
lrwxrwxrwx. 1 root root 18 8月 5 2020 libk5crypto.so.3 -> libk5crypto.so.3.1
[root@classroom lib64]# pwd
/usr/lib64
[root@classroom lib64]# rpm -qf /usr/lib64/libk5crypto.so.3.1
krb5-libs-1.18.2-5.el8.x86_64
[root@classroom lib64]# md5sum libk5crypto.so.3.1
f948fb332e0329d6fcebd9f2b6994d8f libk5crypto.so.3.1
[root@classroom lib64]# rm -f libk5crypto.so.3（是一个符号链接，指向libk5crypto.so.3.1）
[root@classroom lib64]# cp 8.0上的libk5crypto.so.3 libk5crypto.so.3
[root@classroom lib64]# md5sum libk5crypto.so.3
26a1e0966e4f209b28cd086cc545d6e2 libk5crypto.so.3.1
[root@classroom lib64]# chmod 755 libk5crypto.so.3
[root@classroom lib64]# ldconfig
ldconfig: /lib64/libk5crypto.so.3 不是符号链接（可以忽略）
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点击之前出错“retry”按钮，即可通过。
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