I was trying to follow a tutorial for installing yaffas (zarafa-admin) and I went to install the packages and got failed checksum errors for EVERY mirror. So after about 15 mirrors, I just hit CTRL+C to stop yum.
Now when I run yum anything, I get the following error:
# yum update
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
YumRepo Error: All mirror URLs are not using ftp, http[s] or file.
Eg. $releasever is not a valid release or hasnt been released yet/
removing mirrorlist with no valid mirrors: /var/cache/yum/x86_64/$releasever/base/mirrorlist.txt
Error: Cannot find a valid baseurl for repo: base
Can someone please help me fix this?