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Editor to share with you what to do about the installation error caused by ORA-21561 inconsistency, I believe most people do not know much about it, so share this article for your reference. I hope you will gain a lot after reading this article. Let's learn about it together.

In the morning, we need to build a new test environment. After booting a virtual machine from copy, we directly dbca the installation database and report an error ORA-21561: OID generation failed

The verification is due to the inconsistency of names in copy's virtual machine hostname and hosts.

[root@practice3 ~] # hostname

Practice3

[root@practice3 ~] # cat / etc/hosts

# Do not remove the following line, or various programs

# that require network functionality will fail.

127.0.0.1 localhost.localdomain localhost

192.168.1.112 practicer3

The hostname in / ect/hosts has an extra letter r

Delete the extra r and keep the hostname practice3

Re-dbca to build the database.

The above is all the contents of the article "what to do if the installation error is caused by ORA-21561 inconsistency". Thank you for your reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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