Tag: linux tips

Fixing yum install issues

Sometimes after installation of a new linux machine, we come across following failures while trying to install packages.

yum utility doesn’t  work due to repositories issues.

[root@kashish ~]# yum install lsscsi
Loaded plugins: presto, refresh-packagekit
Error: Cannot retrieve repository metadata (repomd.xml) for repository: fedora.

 

To resolve above errors nicely and cleanly, do as follows

  • Go to /etc/yum.repos.d

[root@kashish ~]# cd /etc/yum.repos.d

  • In all the *.repo files, change https to http in the mirror_list URLs

Now run following commands to rebuild rpm database

[root@kashish ~]# yum clean all
[root@kashish ~]# rm -f /var/lib/rpm/__db.*
[root@kashish ~]# rpm –rebuilddb

There is very useful YUM cheat sheet compiled by redhat. To learn more about yum
command, checkout this.