After CentOS 4 hit End of Life in February (No updates after 29 February 2012), you may have noticed the following error coming from the “yum” installer:
not using FTP, http[s], or file for repos, skipping – 4 is not a valid release or hasn't been released yet
However, there is a very easy way to get “yum” working again without upgrading everything to a newer version of CentOS.
- Login to your server/SSH using root
/etc/yum.repos.d/CentOS-Base.repoin an editor (vi/vim)
- Comment out the “mirrorlist” entries
- Uncomment the “baseurl” entries and change them to