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dnf 崩溃了，现在有交易错误

tag-icon • tag-icon fedora fedora-22 dnf
dnf 崩溃了，现在有交易错误

我在 Fedora 22 系统上运行dnf update，突然 Gnome 崩溃，导致 无法运行dnf。现在，当我再次尝试时，出现此错误：

The downloaded packages were saved in cache until the next successful transaction.
You can remove cached packages by executing 'dnf clean packages'.
Error: Transaction check error:
  file /usr/share/licenses/libpng/LICENSE from install of libpng-2:1.6.19-1.fc22.i686 conflicts with file from package libpng-2:1.6.16-3.fc22.x86_64
  file /usr/share/man/man5/png.5.gz from install of libpng-2:1.6.19-1.fc22.i686 conflicts with file from package libpng-2:1.6.16-3.fc22.x86_64
  file /usr/share/doc/libgpg-error/README from install of libgpg-error-1.21-1.fc22.i686 conflicts with file from package libgpg-error-1.17-2.fc22.x86_64
  [... many more ...]
  file /usr/share/doc/libgpg-error/AUTHORS from install of libgpg-error-1.21-1.fc22.i686 conflicts with file from package libgpg-error-1.17-2.fc22.x86_64
  file /usr/share/doc/pcre/NEWS from install of pcre-8.38-1.fc22.i686 conflicts with file from package pcre-8.37-4.fc22.x86_64
  file /usr/share/doc/pcre/ChangeLog from install of pcre-8.38-1.fc22.i686 conflicts with file from package pcre-8.37-4.fc22.x86_64

Error Summary
-------------

我如何强制dnf继续安装新版本？

答案1

看起来您有一个多库系统 — x86_64，同时还安装了 i686 软件包。通常，此类软件包会共享文件，只要它们完全相同，这就没有问题。似乎在这里，您更新了一个体系结构，但没有更新另一个体系结构，并且共享文件发生了更改。

最简单的解决方法是删除 i686 软件包。在这种情况下，

sudo dnf remove libpng.i686 libgpg-error.i686 pcre.i686

应该可以。它还可能会删除一堆 i686 依赖项，这没问题。您可以随时将它们放回去。执行此操作，然后升级，然后放回您真正需要的任何 32 位程序。

答案2

我曾经rpm强制升级，而不先删除 i686 软件包。dnf有助于将 RPM 文件保存在/var/cache/dnf/updates-<tx-id>/packages/：

sudo rpm -i --force /var/cache/dnf/updates-<tx-id>/packages/<package>.rpm

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