This sounds like this:
https://github.com/QubesOS/qubes-issues/issues/4671
Which I solved with this:
The problem: missing e2fsprogs, so /rw cannot be prepared.
quick workaround: qvm-run -u root --no-gui -p fedora-29-minimal 'dnf install -y e2fsprogs'
This sounds like this:
https://github.com/QubesOS/qubes-issues/issues/4671
Which I solved with this:
The problem: missing e2fsprogs, so /rw cannot be prepared.
quick workaround: qvm-run -u root --no-gui -p fedora-29-minimal 'dnf install -y e2fsprogs'