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Oracle Database 21c XE on OEL 8 with Support by cloudimg

Jun 28, 2024
OEL 8 – Oracle Database 21c Express Edition Version: 1.0.0 Created by: cloudimg Table of Contents 1.) Overview......................................................................................................................1 2.) Access & Security..........................................................................................................2 3.) System Requirements....................................................................................................2 4.) Connecting to the Instance...........................................................................................2 5.) On Startup....................................................................................................................2 6.) Filesystem Configuration..............................................................................................2 7.) Server Components......................................................................................................3 8.) Scripts and Log Files.....................................................................................................3 9.) Using System Components...........................................................................................4 1.) Overview This document is provided as a user guide for the OEL 8 – Oracle Database 21c Express Edition product offering on the Alibaba Cloud Marketplace. Please reach out to support@cloudimg.co.uk if any issues are encountered following this user guide for the chosen product offering.2.)Access & Security Please update the security group of the target instance to allow the below ports and protocols for access and connectivity. Protocol Type Port Description SSH TCP 22 SSH connectivity TCP TCP 1521 Oracle Database Listener Port 3.)System Requirements The minimum system requirements for the chosen product offering can be found below Minimum CPU Minimum RAM Required Disk Space 1 1 GB 20 GB 4.) Connecting to the Instance Once launched in the ECS Console, please connect to the instance via an SSH client using the root user with the key pair associated at launch. 5.) On Startup An OS package update script has been configured to run on boot to ensure the image is fully up to date at first use. You can disable this feature by removing the script from /stage/scripts/ and deleting the entry in crontab for the root user. Disable the OS update script from running on reboot rm -f /stage/scripts/initial_boot_update.sh crontab -e #DELETE THE BELOW LINE. SAVE AND EXIT THE FILE. @reboot /stage/scripts/initial_boot_update.sh 6.) Filesystem ConfigurationPlease see below for a screenshot of the server disk configuration and specific mount point mappings for software locations. Filesystem Size Used Avail Use% Mounted on devtmpfs 1.9G 0 1.9G 0% /dev tmpfs 1.9G 0 1.9G 0% /dev/shm tmpfs 1.9G 8.5M 1.9G 1% /run tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup /dev/nvme0n1p2 38G 3.5G 32G 10% / /dev/nvme1n1 20G 6.5G 13G 35% /opt/oracle /dev/nvme0n1p1 2.0G 143M 1.7G 8% /boot tmpfs 389M 0 389M 0% /run/user/1002 tmpfs 389M 0 389M 0% /run/user/0 Mount Point Description /boot Operating System Kernel files /opt/oracle Oracle software installation directory 7.) Server Components Please see below for a list of installed server components and their respective installation paths. The below versions are subject to change on initial boot based on the initial_boot_update.sh script finding new versions of the software in the systems package repositories. Component Version Software Home Aliyun CLI 3 /usr/local/bin/aliyun Oracle Database 21c XE 21.3 /opt/oracle 8.) Scripts and Log Files The below table provides a breakdown of any scripts & log files created to enhance the useability of the chosen offering. Script/Log Path Description Initial_boot_update.sh /stage/scripts Update the Operating System withthe latest updates available. Initial_boot_update.log /stage/scripts Provides output for initial_boot_update.sh /stage/scripts/oracle-database-xe- /stage/scripts Oracle Database user credentials config.log 9.) Using System Components Instructions can be found below for using each component of the server build mentioned in section 7 of this user guide document. Aliyun CLI Run – Once logged into the server, you may check the options available for the use of Aliyun CLI via the below command. aliyun –-help Oracle Database Oracle Database XE has been preinstalled on the system. You can start and or stop this example database via the below commands as the root OS user. By default, the Oracle XE database service has been configured to run on boot. Run – The below to check the status of the Oracle XE database service systemctl status oracle-xe-21c EXPECTED OUTPUT ● oracle-xe-21c.service - SYSV: This script is responsible for taking care of configuring the RPM Oracle XE Database and its associated services. Loaded: loaded (/etc/rc.d/init.d/oracle-xe-21c; bad; vendor preset: disabled) Active: active (exited) since Wed 2023-04-05 10:02:49 EDT; 23s ago Docs: man:systemd-sysv-generator(8) Process: 2233 ExecStop=/etc/rc.d/init.d/oracle-xe-21c stop (code=exited, status=0/SUCCESS)Process: 2425 ExecStart=/etc/rc.d/init.d/oracle-xe-21c start (code=exited, status=0/SUCCESS) Apr 05 10:02:43 orcl.us.oracle.com systemd[1]: Starting SYSV: This script is responsible for taking care of configuring the RPM Oracle XE Database and its associated services.... Apr 05 10:02:43 orcl.us.oracle.com oracle-xe-21c[2425]: Starting Oracle Net Listener. Apr 05 10:02:43 orcl.us.oracle.com su[2432]: (to oracle) root on none Apr 05 10:02:43 orcl.us.oracle.com oracle-xe-21c[2425]: Oracle Net Listener started. Apr 05 10:02:43 orcl.us.oracle.com oracle-xe-21c[2425]: Starting Oracle Database instance XE. Apr 05 10:02:43 orcl.us.oracle.com su[2438]: (to oracle) root on none Apr 05 10:02:49 orcl.us.oracle.com systemd[1]: Started SYSV: This script is responsible for taking care of configuring the RPM Oracle XE Database and its associated services.. Apr 05 10:02:49 orcl.us.oracle.com oracle-xe-21c[2425]: Oracle Database instance XE started. Run – Issue the below commands to stop and or start the oracle xe database service as required via the root user. #Stop the Oracle XE Database Service systemctl stop oracle-xe-21c #Start the Oracle XE Database Service systemctl start oracle-xe-21c #Check the status of the Oracle XE Database service systemctl status oracle-xe-21c Run – Issue the below commands as the oracle user to access the Oracle XE sample database via SQLPLUS. #Switch to the oracle user sudo su – oracle #Access the Oracle XE sample database as sysdba via SQLPLUS sqlplus / as sysdba EXPECTED OUTPUT SQL*Plus: Release 21.0.0.0.0 - Production on Wed Apr 5 10:03:48 2023 Version 21.3.0.0.0Copyright (c) 1982, 2021, Oracle. All rights reserved. Connected to: Oracle Database 21c Express Edition Release 21.0.0.0.0 - Production Version 21.3.0.0.0 The Oracle Database XE is now open and ready for use. NOTE: if you would like to access the database using the SYSTEM user, please refer to the randomly generated credentials located in file: /stage/scripts/oracle-database-xe- config.log. If you would also like to connect to the database via an external programme such as SQL Developer, please reference the below screenshot for the correct settings such as Port & Service Name. The IP address will differ based on the IP of your instance.
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Oracle Database 21c XE on OEL 8 with Support by cloudimg

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