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Can not install pgAdmin 4 on RHEL 7.7

ky flag

I am trying to install pgAdmin 4 on RHEL 7.7. (PostgreSQL 13 is already successfully installed)

Following the official guide at pgAdmin 4 (RPM)

sudo rpm -e pgadmin4-redhat-repo    
sudo rpm -i https://ftp.postgresql.org/pub/pgadmin/pgadmin4/yum/pgadmin4-redhat-repo-2-1.noarch.rpm

which gives a warning:

warning: /var/tmp/rpm-tmp.dlinTR: Header V3 RSA/SHA256 Signature, key ID 210976f2: NOKEY

After that trying to install using yum

sudo yum install pgadmin4-web

which gives the error message:

Loaded plugins: langpacks, product-id, search-disabled-repos
https://ftp.postgresql.org/pub/pgadmin/pgadmin4/yum/redhat/rhel-7.7-x86_64/repodata/repomd.xml: [Errno 14] HTTPS Error 404 - Not Found
Trying other mirror.
failure: repodata/repomd.xml from pgAdmin4: [Errno 256] No more mirrors to try.
https://ftp.postgresql.org/pub/pgadmin/pgadmin4/yum/redhat/rhel-7.7-x86_64/repodata/repomd.xml: [Errno 14] HTTPS Error 404 - Not Found

Question

Can anyone point what could be the error (I mean I see the url not found, but why?) and how to resolve this issue?

mangohost

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