FedUp is new for Fedora 18 and as such, will be changing before Fedora 18 is released. If you find this documentation to be wrong or out of date, please fix it or let someone know
FedUp does not yet ensure that only trusted software from Fedora is run on your system when you are doing upgrade over the network. Refer to Bugzilla: #877623 for more details. You can download the ISO release image and verify the authenticity independently before performing a upgrade with Fedup via media or ISO images methods to workaround this issue. Note that neither Anaconda not Preupgrade verified the authenticity of the source either and this is not a regression.
What is FedUp?
FedUp (FEDora UPgrader) is the name of a new system for upgrading Fedora installs in Fedora 18 and above releases. It replaces all of the currently recommended upgrade methods (PreUpgrade and DVD) that have been used in previous Fedora releases. Anaconda, the Fedora installer does have not any in-built upgrade functionality in Fedora 18 or above releases. It has been completely delegated to Fedup.
Currently, FedUp is capable of upgrading Fedora 17 installs to Fedora 18 using a networked repository, similar to how PreUpgrade worked. More methods for upgrade are currently planned and this page will be updated as those features are completed.
The FedUp client does not build or run on anything older than Fedora 17. If you want to upgrade an older Fedora installation, please upgrade to Fedora 17 before continuing.
What Does FedUp do?
The FedUp system consistes of two parts - the client used to download packages and prepare for the upgrade and a pre-boot environment which does the actual upgrade using systemd and yum. More details are available in a blog post written by FedUp's primary author
The FedUp Client
The FedUp client runs on the system to be upgraded. It gathers the packages needed for upgrade in addition to downloading the required initramfs and kernel needed for the actual upgrade. At this time, only the fedup command-line interface is implemented but a GUI interface is expected before Fedora 18 is released.
The Upgrade
The actual upgrade takes place when the system has been rebooted after running the FedUp client. The filesystems are mounted during boot, the already downloaded packages are installed and some upgrade-related tasks are performed. During the upgrade process, a special plymouth theme is used which has a progress bar to indicate current upgrade progress.
Frequently Asked Questions
Can I upgrade a Fedora 16 system with FedUp?
No, this is not currently possible. The FedUp client does not currently build or run on Fedora 16 and you need to be running at least Fedora 17 in order to run the client. If you are upgrading from Fedora 16, use Preupgrade to upgrade to Fedora 17 first.
How do I report issues that I find with upgrades?
First see Common F18 bugs#Upgrade_issues whether the problem is not one of a very prominent issue we already know of. If it is not there, the component for reporting problems depends on the exact issue that you hit:
Issues with upgrade preparation
If you hit issues when using the FedUp client (
fedup
Issues During Upgrade
If you hit issues after upgrade preparation and the initial reboot, search or file a bug against
Issues After Upgrade
If you hit issues after upgrade with a specific package, file a bug against the package with which you are having issues.
How do I Debug Issues During Upgrade
A troubleshooting and debug guide will be written soon and linked to from here.
Does FedUp verify the software it runs or installs during upgrade?
This is a planned feature. See Bug 877623 for a status update.
Where can I ask Questions
For now, the best place to ask questions is probably #fedora-qa[?] on Freenode IRC or the test mailing list.
How Can I Upgrade My System with FedUp?
As alluded to above, there are three parts to upgrading with FedUp - preparation, execution and cleanup.
Before you start doing anything, be sure to have a look at Common F18 bugs#Upgrade_issues and read about the most common bugs found.
Preparing for the Upgrade
This method is for network upgrade only.
- Do a full system update and reboot to ensure that any kernel changes are running
- Open the Terminal and run
su -c "yum install fedup"to install the latest version of FedUp.
This will install FedUp on your system and get your Fedora 17 ready for upgrade.
Executing the Upgrade
This section still needs a reference to the 'esc kills plymouth' bug once a suitable summary has been written
- Reboot the system if
feduphas completed without error. - Once the system reboots, there should be a new entry in the GRUB menu titled
System Upgrade.- If you add
rd.upgrade.debugshellboot argument, you will get a login shell on VT2, allowing you to tinker with the system in case something goes wrong
- If you add
- Select the
System Upgradeoption from the GRUB menu - The system should boot into the upgrade process and a plymouth boot screen should be displayed
- If you press 'esc', a more detailed log of progress will be desplayed but if you switch back to the graphical progress indicator, it will remain at 0% for the remainder of the upgrade but that does not mean the upgrade has stopped. See Need section reference here once it's written
- Once the upgrade process has completed, the system will reboot and an option to boot Fedora 41 will be on the grub menu
GRUB Updates
While updating GRUB on your upgraded system isn't strictly required, it is recommended for BIOS systems and very strongly recommended for UEFI systems due to the transition from grub-efi to grub2-efi
Updating GRUB2 (BIOS systems)
- After upgrade, the grub2 you're booting from will still be the F17 version; upgrading must be done manually
- Follow the steps in this grub2 page to reinstall and update grub
Updating GRUB (UEFI systems)
Late in testing, we found some potentially serious problems with manually upgrading grub-efi to grub2-efi. Until this is figured out, we recommend that users continue to use grub-efi as it should work for the near future
Cleaning Up Post Upgrade
This part of the documentation is still being written
Docs TODO
- Write fedup troubleshooting and debug guide
- add details for secureboot/shim installation
- write commonbugs entries and link to them from this page
- add note about blob drivers if needed
- add notes about how to use other repos or link to discussion/instructions