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Error in invoking target 'agent nmhs' of make file ins_emagent.mk while installing Oracle 11gr2 11.2.0.4.0 on Red Hat Enterprise Lin...

In this blog post I'll show you how to delete old files based system timestamp, the system timestamp means when a file was created OR wh...

Here I'll show you how to use vi editor in SQL PLUS, It is very easy and comfortable when working with SQLPLUS and writing scripts. vi ...

In this blog post I''ll show you how to create local RPM packages repository for Oracle Enterprise Linux 7.0. Let's start. Firs...

During Automatic storage Management (ASM) installation occurred error CRS-4124: Oracle High Availability Services startup failed ohasd fai...

On my test environment I changed hostname of Linux machine and after restart ASM did not start. environment: OS : Oracle Linux 6.5 DB : Or...

Today we faced warnings when starting agent of enterprise manager grid control. emctl start agent perl: warning: Setting locale failed. pe...

when creating database with dbca, shown error :  ORA-21561: OID generation failed . SOLUTION: problem is most likely machine hosts file....

When you are working in an UNIX shell using Putty or other tool, you may get this error. crontab -e Terminal too wide Enter the below comm...

Now i'll show you how to configure ftp server on oracle linux 5.5 and create user, which can access only his home directory for using ft...

Operating system --- Oracle Linux 6 Database --- 11G R2 Today i show you how to duplicate database which is in ASM to non ASM on differen...

Here I'll show you how to configure system for automatically start oracle database after server reboot. oracle database 11g --- Oracle ...

It can be frustrating when you try to start xwindow application using Xming XServer on Windows XP/7/Vista but encountering connection refuse...

The interface name of a network device increases if the mac address of the physical or virtual network card changes. A common case is if you...

Normally we will set the hostname of a system during the installation process. but if we need to change hostname what can we do? On any Li...

There is a bug in Red Hat Linux 6 and Oracle Enterprise Linux 6 (UEK and RHEL-kernel). When you need more memory for SGA/PGA when using MEM...

SQL> startup nomount; ORA-00845: MEMORY_TARGET not supported on this system This error comes up because we tried to use the Automatic Me...

In this post I'll show you how to extend disk size in oracle linux on vmware. First of all our vmware guest operating system must be in...

1) Open /etc/fstab with vi or any text editor of your choice 2) Locate the line of /dev/shm and use the tmpfs size option to specify your e...

if oracle user home is /u0/app/oracle then: cd /u0/app/oracle gedit .bashrc and insert: PS1="[\\u@\\h:\\w] $ ";...