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Pisitpongv's avatar
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Jun 14, 2022

Issue with nginx instance manager repo with centos9

Hi all

Anyone have issue installing nginx instance manager on Centos9? I experenice issue when yum install nms-instance-manager on my new droplet instance on oceandigital. Awhile I don't have any issue install nginx-plus on the same instance.



[root@Nginx-SSO01 ~]# sudo yum install -y nms-instance-manager
NGINX Management Suite                          108  B/s | 153  B     00:01
Errors during downloading metadata for repository 'nms':
  - Status code: 404 for                                                                                                        omd.xml (IP:
Error: Failed to download metadata for repo 'nms': Cannot download repomd.xml: C                                                                                                             annot download repodata/repomd.xml: All mirrors were tried



 After investigate, I found that it is issue with nginx instance manager repo with Centos version 9.

If I try to curl, the URL is not found and return 404.



[root@Nginx-SSO01 ~]# curl --cert  /etc/ssl/nginx/nginx-repo.crt --key /etc/ssl/nginx/nginx-repo.key
<head><title>404 Not Found</title></head>
<center><h1>404 Not Found</h1></center>



If I change the directory to centos version 8, I found no issue.



[root@Nginx-SSO01 ~]# curl --cert  /etc/ssl/nginx/nginx-repo.crt --key /etc/ssl/nginx/nginx-repo.key
<?xml version="1.0" encoding="UTF-8"?>
<repomd xmlns="" xmlns:rpm="">
<data type="filelists">
  <checksum type="sha256">7c829f9d959ee129b6f0f4d1f9192795caf0765c863889837f8aef93ca1fa307</checksum>



Anyone have a work around on this? I am on free trial license. I cannot raise issue.




  • Hi LiefZimmerman 

    After weeks, I just figured out that Nginx Instance Manager doesn't support CentOS verison 9. That is why I got that error. If anyone want to run nginx instance manger, I recommend you to run it on CentOS version 7. CentOS8 still have some issues.


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