Your bug report is not that useful, since you must include the relevant content of the debmirror.conf file that you are using. In order to mirror only devuan-specific suites in ascii for amd64, your debmirror.conf should have something like: $host="pkgmaster.devuan.org"; $remoteroot="devuan"; $download_method="http"; @dists="ascii"; @sections="main,main/debian-installer,contrib,non-free"; @arches="amd64"; I have tried it now myself with: $ debmirror -p --keyring=/usr/share/keyrings/devuan-archive-keyring.gpg ./devuan-only and it works.