From Fedora Project Wiki

Revision as of 15:38, 19 January 2013 by Cha1tanya (talk | contribs) (Preparing for the Upgrade)

New Software and Documentation
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 If you find this documentation to be wrong or out of date, please fix it or let someone know
Security Considerations
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.

Fedora 16 and Older
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 (Package-x-generic-16.pngfedup) before reboot, search or file a bug against fedup using the version you are upgrading from.

Issues During Upgrade

If you hit issues after upgrade preparation and the initial reboot, search or file a bug against Package-x-generic-16.pngfedup-dracut using the version you are upgrading to.

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.
  1. Do a full system update running su -c "yum clean all | yum upgrade" on Terminal and reboot to ensure that any kernel changes are running.
  2. After reboot, 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

  1. Open Terminal and run su -c "fedup-cli --network 18 --debuglog fedupdebug.log"".
  2. Reboot your system.
  3. Once you Reboot, you'll see the option 'System Upgrade' on the GRUB prompt. Just press Enter.
  4. The system will boot into a special environment to perform the upgrade. The screen will show a graphical progress screen during upgrade.
Go get some coffee
The upgrade process usually takes a while (anywhere from 45-90 minutes, depending on the system), be patient and wait for it to finish. The system will boot into the new version of Fedora when the upgrade is complete.

GRUB Updates

Needs update
This part of the documentation is outdated. Update it or tell someone to do it.
Somewhat Optional
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)

Problems Upgrading Grub on UEFI
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


  • 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