Error: Failed to download metadata for repo 'appstream': Cannot prepare internal mirrorlist: No URLs in mirrorlist

Question

I am trying to download java using yum on centOs which I specified in Dockerfile. After pulling centOs image the run crushed and throw this error!? also to mention that my server instance is AWS EC2!

Step 2/9 : RUN yum install java -y
 ---> Running in 39fc233aa965
CentOS Linux 8 - AppStream                      184  B/s |  38  B     00:00
Error: Failed to download metadata for repo 'appstream': Cannot prepare internal mirrorlist: No URLs in mirrorlist
The command '/bin/sh -c yum install java -y' returned a non-zero code: 1

Answer 1

If you don't already have it, you'll need the gpg keys:

wget 'http://mirror.centos.org/centos/8-stream/BaseOS/x86_64/os/Packages/centos-gpg-keys-8-3.el8.noarch.rpm'
sudo rpm -i 'centos-gpg-keys-8-3.el8.noarch.rpm'

Then it's as simple as transitioning like so:

dnf --disablerepo '*' --enablerepo=extras swap centos-linux-repos centos-stream-repos

Don't worry -- it doesn't remove any repos, it simply temporarily ignores all of yours, and downloads information regarding the new mirrors.

You may at this point want to actually upgrade your packages:

sudo dnf distro-sync

You'll now be able to use "yum" as usual.

Answer 2

Try editing your dockerfile

FROM centos

RUN cd /etc/yum.repos.d/
RUN sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
RUN sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*

RUN yum -y install java

CMD /bin/bash

Refer to this code

failed-metadata-repo-appstream-centos-8

Answer 3

I tried to use CentOS 8 with wsl and got the same error. Steps to fix the problem (as root):

# sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
# sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*
# dnf distro-sync
# dnf -y install java

The top voted answer did not work for me (by @Hashbrown). The answer with Dockerfile was not for my case either.

Answer 4

Go to /etc/yum.repos.d/

cd /etc/yum.repos.d/

Run

sudo sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
sudo sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*
sudo yum update -y

Then do what you want

Answer 5

Try this

FROM centos

RUN cd /etc/yum.repos.d/
RUN sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
RUN sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*

RUN yum -y install java

CMD /bin/bash

Answer 6

Please follow the below-mentioned steps:

1. Go to the /etc/yum.repos.d/ directory.

   cd /etc/yum.repos.d/

2. Run the below commands to hash the mirror-list in all yum.repos.d files then replace the existed Baseurl with the vault.centos.org

   sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-* sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*

3. Then run yum update or install any package you want

   yum update -y

Answer 7

Go to /etc/yum.repos.d/ directory. Open .repo file and manually edit mirrorlist from $releasever to 8-stream.

For example : /etc/yum.repos.d/CentOS-Linux-BaseOS.repo

1. open file in vi

   sudo vi /etc/yum.repos.d/CentOS-Linux-BaseOS.repo

2. comment mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=BaseOS&infra=$infra

   #mirrorlist=http://......

3. within vi, copy paste mirrorlist=http://...... line

   yy and p

4. uncomment and edit the copied line by replacing $releasever to 8-stream

   mirrorlist=http://mirrorlist.centos.org/?release=8-stream&arch=$basearch&repo=BaseOS&infra=$infra

5. save and exit vi

   :wq

Repeat above 5-steps for other .repo files.