This is fedup2, a (prototype) successor to fedup based on DNF.
It uses systemd's Offline System Updates hook to run the upgrade with your system mostly offline, rather than using special boot images to run the upgrade in a special upgrade environment.
This is just a prototype - it was mostly written as a proof-of-concept and as a way to flesh out what needs to be added to the DNF API to make this work.
Fedora 21 or newer with python3, python3-libmount, python3-dnf.
(It might work with python2 but there's no python-libmount in Fedora yet..)
$ fedup2 download 22
$ fedup2 status
Download of Fedora 22 is 50.0% complete (987 M/1.9 G)
Use 'fedup2 resume' to resume downloading.
Use 'fedup2 cancel' to cancel the upgrade.
$ fedup2 reboot
(The system will start the upgrade after the reboot, then reboot again when the upgrade is finished.)
usage: fedup2.py <status|download|media|reboot|clean> [OPTIONS]
Prepare system for upgrade.
optional arguments:
-h, --help show this help message and exit
-v, --verbose print more info
-d, --debug print lots of debugging info
--log LOG where to write detailed logs (default:
/var/log/fedup2.log)
Actions:
status show upgrade status
download download data for upgrade
resume (retry, refresh)
resume or retry download
cancel cancel download
reboot reboot and start upgrade
clean clean up data
system-upgrade ==SUPPRESS==
Use 'fedup2.py <ACTION> --help' for more info.
(Yeah, I know about the ==SUPPRESS== thing. You aren't supposed to use the
system-upgrade action manually; use reboot and let your system handle it.)