Upgrade from Fedora 20 to 21

Upgrade from Fedora 20 to 21

In Versions later than Fedora 18, fedup is used as the upgrade tool. For more information, see upgrade from Fedora 17 to 18 18. (See note 1)

However, if you directly use fedup -- network 21, the following message is displayed:

According to the prompts, the original Fedora 21 packages different versions based on different usage characteristics. It mainly includes:

• Workstation
• Server
• Cloude cloud
• Nonproduct non-productive

During installation and upgrade, you must use the -- prouduct parameter to specify the required version.

Therefore, the upgrade command of the workstation should be:

Fedora -- network 21 -- product = workstation

Note 1

Upgrade Fedora 17 to 18

The upgrade tool of fedora 18 is no longer pre-upgrade, but changed to fedup.

First install fedup and use the fedup upgrade method:

Sudo fedup -- network 18

My system has 1515 packages to be upgraded. A long wait.

Appendix: Use of fedup

-- Network upgrades from the network. The parameter value is rawhid, 18.

-- Iso is upgraded from a CD image. The parameter value is the image location.

-- Device is upgraded from a directory. The parameter value is directory.