CentOS branch fails performing yum update

[nyue]

Hi,

I am trying to build the CentOS branch but it fails with the following message

Determining fastest mirrors
Error: Cannot find a valid baseurl for repo: base
YumRepo Error: All mirror URLs are not using ftp, http[s] or file.
Eg. Invalid release/
removing mirrorlist with no valid mirrors: /var/cache/yum/base/mirrorlist.txt
The command '/bin/sh -c yum update -y && yum install -y mesa-libGL net-tools sudo xorg-x11-server-utils xorg-x11-server-Xvnc-source xorg-x11-xinit xorg-x11-drv-dummy xorg-x11-drv-void' returned a non-zero code: 1
make: *** [build] Error 1

Cheers