I am on Fedora 37, I did a dnf up and rebooted to make sure that's not the issue. With the mkosi from the pkg manager, I am getting: mkosi mkosi: error: unrecognized arguments: --kernel-command-line-extra=systemd.crash_shell systemd.log_level=debug udev.log_level=info systemd.journald.forward_to_console systemd.journald.max_level_console=warning systemd.mask=auditd Which reports as mkosi version 14 mkosi --version mkosi 14 I grabbed the current main and installed it python3 -m pip install --user git+https://github.com/systemd/mkosi.git And when I run the mkosi command, I ensure its picking up the right one: sudo -E $(which mkosi) And it seems to be building along, but then it gets to a point where the packages are being verified with dnf (see below). I am not really sure how to proceed. Thanks for any help. Bill ---- <snip> ---- xfsprogs-6.1.0-1.fc37.x86_64 xkeyboard-config-2.36-3.fc37.noarch xxhash-libs-0.8.1-3.fc37.x86_64 xz-5.4.1-1.fc37.x86_64 xz-libs-5.4.1-1.fc37.x86_64 zchunk-libs-1.3.0-1.fc37.x86_64 zlib-1.2.12-5.fc37.x86_64 zsh-5.9-2.fc37.x86_64 Failed: NetworkManager-1:1.40.10-1.fc37.x86_64 ca-certificates-2023.2.60-1.0.fc37.noarch dbus-broker-33-1.fc37.x86_64 dhcp-server-12:4.4.3-4.P1.fc37.x86_64 dnsmasq-2.89-1.fc37.x86_64 gdb-13.1-1.fc37.x86_64 groff-base-1.22.4-10.fc37.x86_64 kexec-tools-2.0.25-1.fc37.x86_64 libutempter-1.2.1-7.fc37.x86_64 polkit-121-4.fc37.x86_64 rpm-4.18.0-1.fc37.x86_64 tpm2-tss-3.2.2-1.fc37.x86_64 Error: Transaction failed ‣ Error: "dnf -y --config=/home/test/systemd2/.mkosi.tmp5lla7668/dnf.conf --best --allowerasing --releasever=37 --installroot=/home/test/systemd2/.mkosi.tmp5lla7668/root --setopt=keepcache=1 --setopt=install_weak_deps=0 '--setopt=cachedir=/home/test/systemd2/mkosi.cache/fedora~37' --setopt=reposdir= --setopt=varsdir=/home/test/systemd2/.mkosi.tmp5lla7668/vars --noplugins --nodocs install acl alsa-lib bash-completion btrfs-progs compsize coreutils cryptsetup dhcp-server diffutils dnf dnsmasq dosfstools dracut dracut-config-generic e2fsprogs f2fs-tools findutils fuse gcc gdb glib2 glibc-minimal-langpack gnutls grep iproute iproute-tc kbd kernel-core kernel-modules kexec-tools kmod less libasan libbpf libcap-ng libcap-ng-utils libfido2 libgcrypt libmicrohttpd libmnl libubsan libxcrypt libxkbcommon mtools nano netcat nftables numactl-libs openssl pam passwd polkit popt procps-ng python3 'python3dist(pefile)' qrencode quota rpm sed strace systemd tpm2-tss tree util-linux util-linux valgrind vim-common wireguard-tools xfsprogs zsh '(systemd-networkd if systemd)' '(systemd-udev if systemd)'" returned non-zero exit code 1.