Config error: releasever not given and can not be detected from the installroot.

[mcandre]

When I try to use yumbootstrap on a fedora 22 host, the yumbootstrap formulas run into dnf vs. yum conflicts:

mkdir /chroot
yumbootstrap --verbose fedora-20 /chroot
[17:56:51] installing Fedora (release 20) to /chroot
[17:56:51] preparing empty /etc/fstab and /etc/mtab
[17:56:51] using built-in repositories
[17:56:51] adding GPG keys
[17:56:51] installing default packages for Fedora 20
[17:56:51] /chroot/yumbootstrap/yum.conf doesn't exist, creating one
[17:56:51] GPG keys defined, adding them to repository configs
Yum command has been deprecated, redirecting to '/usr/bin/dnf -c /chroot/yumbootstrap/yum.conf --installroot /chroot -y -e 1 -d 2 install coreutils bash grep gawk basesystem rpm initscripts iproute less make mktemp vim-minimal yum chkconfig plymouth rootfiles fedora-release /usr/bin/db_load'.
See 'man dnf' and 'man yum2dnf' for more information.
To transfer transaction metadata from yum to DNF, run:
'dnf install python-dnf-plugins-extras-migrate && dnf-2 migrate'

Config error: releasever not given and can not be detected from the installroot.
"/usr/bin/yum" exited with code 1

[dozzie]

It seems to be related to this:
https://bugzilla.redhat.com/show_bug.cgi?id=1173107

At this point I don't have much attention to think of a fix, so the issue will
sit opened for a while more.