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Oracle Database Error Solutions & DBA Knowledge Base

Welcome to Oracle Database Error Solutions, a professional technical knowledge base dedicated to helping Oracle Database Administrators, Oracle E-Business Suite administrators, developers, and IT professionals troubleshoot Oracle Database and Oracle Linux issues with confidence.

This website provides practical, real-world troubleshooting guides based on hands-on Oracle administration experience. You'll find detailed solutions for Oracle Database errors, RMAN backup and recovery, Data Guard, ASM, RAC, Oracle Linux administration, Oracle E-Business Suite (EBS), cloning, performance tuning, patching, installation, and day-to-day DBA tasks.

Whether you're resolving ORA-27101, ORA-28040, ORA-01555, ORA-12154, ORA-01017, or other Oracle errors, our step-by-step articles are designed to save you time and help you solve problems efficiently.

Error in invoking target agent nmhs of makefile

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Error in invoking target agent nmhs of makefile Applies to:             Oracle Enterprise Linux – Version: 7             Oracle Database 11.2.0.4 Description: After successful installation of Oracle Linux 7, when I start the installation of Oracle Database 11.2.0.4 it is going to hang on 70%, installation log file show the following error: Exception Name: MakefileException Exception String: Error in invoking target ‘agent nmhs’ of makefile Solution: To fix the above problem follow the simple steps:             Edit this file: -        /d01/app/oracle/product/11.2.0/dbhome_1/sysman/lib/ins_emagent.mk -        Change the following: OLD: $(MK_EMAGENT_NMECTL) NEW: $(MK_EMAGENT_NMECTL) –lnnz11 Restart the Database installation,...
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How to Change the Boot Sequence of Oracle Linux 7

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How to Change the Boot Sequence of Oracle Linux 7 Applies to:             Oracle Enterprise Linux – Version: 7 Description: After successful installation of Oracle Linux 7, when I restart the Linux I should select the second option from boot sequence within 3 second to start up the Oracle Linux. Solution:             To change the boot sequence in Oracle Linux 7 follow the simple steps:             GRUB2 count the menu entries in the configuration file starting at 0 for the first entry. To display the menu entries that are defined in the configuration file: [root@khi]# cd /boot/grub2 [root@khi grub2]# grep '^menuentry' /boot/grub2/grub.cfg menuentry 'Oracle Linux Server (4.1.12-61.1.18.el7uek.x86_64 with Unbreakable Enterprise Kernel) 7.3' --class oracle --class gnu-linux --class gnu -...
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