Error in invoking target 'agent nmhs' of makefile
官方的解釋爲：
Unpublished bug 19692824
During installation of Oracle Database or Oracle RAC on OL7, the following linking error may be encountered:
Error in invoking target 'agent nmhs' of makefile '<ORACLE_HOME>/sysman/lib/ins_emagent.mk'. See '<installation log>' for details.
If this error is encountered, the user should select Continue. Then, after the installation has completed, the user must download Patch 19692824 from My Oracle Support and apply it per the instructions included in the patch README.
如果發生這個報錯，繼續安裝，完成安裝後用戶需要下載補丁包打補丁
可以用這個解決方法：
修改$ORACLE_HOME/sysman/lib/ins_emagent.mk，將$(MK_EMAGENT_NMECTL)修改爲：$(MK_EMAGENT_NMECTL) -lnnz11
進入vi編輯器後 命令模式輸入/NMECTL進行查找，快速定位要修改的行在後面追加參數-lnnz11 第一個是字母l 後面兩個是數字1
保存退出後Retry