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Difference between revisions of "Pacman-mirrors/zh-cn"
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应用程序究竟如何生成镜像列表，可以通过在命令行上提供参数来添加。 | 应用程序究竟如何生成镜像列表，可以通过在命令行上提供参数来添加。 | ||
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=== '''重要提示''' === | === '''重要提示''' === | ||
{{Tip|每当运行 pacman-mirrors 时，都需要你同步你的数据库，并更新你的系统。}} | {{Tip|每当运行 pacman-mirrors 时，都需要你同步你的数据库，并更新你的系统。}} | ||
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Only in the event that '''Last-Modifed''' on the mirror is newer - pacman requests the complete file. | |||
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This can present an awkward scenario where the local metadata is newer than the mirror but it contains older content. | |||
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This inconsistency may then generate '''HTTP 404 Not Found''' errors because the local metadata could contain references to package versions which no longer exist. | |||
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The doubled '''yy''' is to mitigate such possible issues - especially when you switch branch or mirror. | |||
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It is bad practise to indiscrimately use '''-Syyu''' for update scenarios, but - pamac mirrorlist timer rewrites the mirrorlist on a weekly or bi-weekly basis - thus increasing the possibility of having inconsistent metadata - in which case the doubled '''yy''' makes sense - which is also why it is used in the pacman-mirrors man page. | |||
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To further the inconsistency - pamac uses copies of the pacman database - which has caused confusion before - pamac and pacman being in disagreement over available updates. | |||
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$ sudo pacman -Syyu | $ sudo pacman -Syyu | ||
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