yum/dnf error: Failed to download metadata for repo [closed]

Question

On my CentOS 8 server, many dnf and yum commands fail with this error:

Failed to download metadata for repo

This seems to apply only to repositories involving https connections, e.g.:

/etc/yum.repos.d $ cat epel-modular.repo
[epel-modular]
name=Extra Packages for Enterprise Linux Modular $releasever - $basearch/pub/epel/$releasever/Modular/$basearch
metalink=https://mirrors.fedoraproject.org/metalink?repo=epel-modular-$releasever&arch=$basearch&infra=$infra&content=$contentdir
...

I have used wget to test connectivity to these sites and it is successful, e.g. wget https://mirrors.fedoraproject.org succeeds.

However, various dnf or yum commands fail:

$ dnf provides /bin/ls
Extra Packages for Enterprise Linux Modular 8 - x86_64     0.0  B/s |   0  B     00:00
Failed to download metadata for repo 'epel-modular'
Error: Failed to download metadata for repo 'epel-modular'

# dnf update --refresh
CentOS-8 - AppStream                                        20 kB/s | 4.3 kB     00:00
CentOS-8 - Base                                             19 kB/s | 3.8 kB     00:00
CentOS-8 - Extras                                          7.4 kB/s | 1.5 kB     00:00
CentOS-8 - PowerTools                                       20 kB/s | 4.3 kB     00:00
Remi's Modular repository for Enterprise Linux 8 - x86_64  4.1 kB/s | 3.5 kB     00:00
Safe Remi's RPM repository for Enterprise Linux 8 - x86_64 3.6 kB/s | 3.0 kB     00:00
Wazuh repository                                           0.0  B/s |   0  B     00:00
Failed to download metadata for repo 'wazuh_repo'
Error: Failed to download metadata for repo 'wazuh_repo'

How do I resolve this problem?

Answer 1

In my case

sudo rm -r /var/cache/dnf 

solved my problem.

Source: https://access.redhat.com/discussions/4222851

Answer 2

I was getting the same error with the Centos8 build inside of a docker container. Fixed by running the below:

# Do on build
RUN dnf clean all && rm -r /var/cache/dnf  && dnf upgrade -y && dnf update -y 

Error before (i was running yum update and not dnf):

Step 4/5 : RUN yum clean all && yum update -y && echo hostname -a
 ---> Running in 10d319da361d
0 files removed
CentOS-8 - AppStream                            0.0  B/s |   0  B     00:05    
Failed to download metadata for repo 'AppStream'
Error: Failed to download metadata for repo 'AppStream'

Success after:

 ---> 0b96049ee5eb
Step 4/5 : RUN dnf clean all && rm -r /var/cache/dnf  && dnf upgrade -y && dnf update -y & echo hostname
 ---> Running in f928c6da6cb0
hostname
Removing intermediate