[root@localhost oreki.ake]# fedup --network 21 --product=workstation
setting up repos...
Repository fedora is listed more than once in the configuration
Repository fedora-debuginfo is listed more than once in the configuration
Repository fedora-source is listed more than once in the configuration
Repository fedora is listed more than once in the configuration
Repository fedora-debuginfo is listed more than once in the configuration
Repository fedora-source is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository updates-debuginfo is listed more than once in the configuration
Repository updates-source is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository updates-debuginfo is listed more than once in the configuration
Repository updates-source is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository updates-debuginfo is listed more than once in the configuration
Repository updates-source is listed more than once in the configuration
Repository fedora is listed more than once in the configuration
Repository fedora-debuginfo is listed more than once in the configuration
Repository fedora-source is listed more than once in the configuration
No upgrade available for the following repos: infinality infinality-noarch steam
getting boot images...
.treeinfo.signed | 2.1 kB 00:00
setting up update...
finding updates 100% [=========================================================]
WARNING: potential problems with upgrade
xorg-x11-drv-vmware-13.0.2-20.intel20143.x86_64 (no replacement) requires xorg-x11-server-Xorg-1.14.4-14.fc20.x86_64 (replaced by xorg-x11-server-Xorg-1.16.3-2.fc21.x86_64)
verify local files 100% [======================================================]
warning: /var/cache/system-upgrade/fedora/packages/clamz-0.5-7.fc21.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID 95a43f54: NOKEY
Importing GPG key 0x95A43F54:
Userid : "Fedora (21) <[email protected]>"
Fingerprint: 6596 b8fb abda 5227 a9c5 b59e 89ad 4e87 95a4 3f54
From : /etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-x86_64
Downloading failed: Didn't install any keys
[root@localhost oreki.ake]#

你这是在虚拟机里装的吧，提示有一个软件包在新版本源里没有，还有就是显卡驱动key没安装，把这两个问题解决了应该就可以了。比如我安装了Intel官方驱动，卸载了之后就能升级了。

把workstion换成no