Comment 3 for bug 1625121

Hi, This problem exist and is not related to network issues. As Valeriy mentioned it is required to add:

EXTRA_RPM_REPOS="proposed,http://mirror.seed-cz1.fuel-infra.org/mos-repos/centos/mos9.0-centos7/snapshots/proposed-latest/x86_64/"
EXTRA_RPM_BUILDDEP_REPO := "http://mirror.seed-cz1.fuel-infra.org/mos-repos/centos/mos9.0-centos7/snapshots/proposed-latest/x86_64/"

in https://github.com/openstack/fuel-main/blob/9.1/config.mk#L175-L179

I'm not sure what is a purpose of proposed repository, but if it is a place where new packages lands it can't be used when we don't want to introduce new changes across different builds. Shouldn't standard repositories provide appropriate packages? What repositories I should use to build Fuel 9.1?