Youmustusefedup0.8toupgradetoFedora20（升级到Fedora20）

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I failed to upgrade Fedora 19 to Fedora 20 directly by running fedup sudo fedup--network20, you must do this firstly, following vbraun‘s advice.

sudo yum --enablerepo=updates-testing update fedup

If you have failed with fedup 0.7, you can do this to avoid redownload packages, following AdamW‘s advice.

sudo mv /var/lib/fedora-upgrade /var/lib/system-upgrade
sudo mv /var/tmp/fedora-upgrade /var/tmp/system-upgrade

And then, import GPG-KEY, following Sayen‘s advice:

sudo rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-rpmfusion-nonfree-fedora-20

Finally，

sudo fedup --network 20

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For my case, before importing GPG KEY, error occured again:

...
warning: /var/tmp/system-upgrade/rpmfusion-nonfree/packages/rpmfusion-nonfree-release-20-1.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID b5f29883: NOKEY
Importing GPG key 0xB5F29883:
 Userid    : "RPM Fusion nonfree repository for Fedora (20) "
 Fingerprint: a84d cf58 46cb 10b6 5c47 6c35 63c0 de8c b5f2 9883
 Package    : rpmfusion-nonfree-release-19-1.noarch (installed)
 From      : /etc/pki/rpm-gpg/RPM-GPG-KEY-rpmfusion-nonfree-fedora-20

Downloading failed: Didn't install any key

At that moment, no one tell me a solution, so I ignored the KEY CHECK by

sudo fedup --network 20 --nogpgcheck

And, I works!!!

Sayen also adviced me to try this before run fedup. I think it better than the “–nogpgcheck solution”.

sudo rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-rpmfusion-nonfree-fedora-20

Thanks community: http://forums.fedoraforum.org/showthread.php?t=295846

Fedora wiki also mentioned: http://fedoraproject.org/wiki/Common_F20_bugs#fedup-07-fail

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Some others problems:

cpan does not work:

Attempt to reload Scalar/Util.pm aborted.
Compilation failed in require at /usr/share/perl5/Safe.pm line 4.
BEGIN failed--compilation aborted at /usr/share/perl5/Safe.pm line 4.
Compilation failed in require at /usr/share/perl5/CPAN.pm line 56.
BEGIN failed--compilation aborted at /usr/share/perl5/CPAN.pm line 56.
Compilation failed in require at /usr/share/perl5/App/Cpan.pm line 218.
BEGIN failed--compilation aborted at /usr/share/perl5/App/Cpan.pm line 218.
Compilation failed in require at /usr/bin/cpan line 9.
BEGIN failed--compilation aborted at /usr/bin/cpan line 9.

And another Perl script failed to start.

Perl API version v5.16.0 of Socket does not match v5.18.0 at /usr/share/perl5/XSLoader.pm line 92.
Compilation failed in require at /usr/share/perl5/Net/FTP.pm line 17.
BEGIN failed--compilation aborted at /usr/share/perl5/Net/FTP.pm line 17.

The solution is to clear the old modules, following 3rensho’s comment:

sudo rm -rf /usr/local/lib64/perl5/*
sudo rm -rf /usr/local/share/perl5/*

更多Fedora相关信息见Fedora 专题页面 http://www.linuxidc.com/topicnews.aspx?tid=5

本文永久更新链接地址：http://www.linuxidc.com/Linux/2014-04/100692.htm