混源是怎么规定优先级的.google 找打了这个
https://manpages.debian.org/unstable/apt/apt_preferences.5.en.html#How_APT_Interprets_Priorities
但是实在是搞不清楚不同的优先级到底区别是什么,也通过修改区间(修改preferences文件的Pin-Priority: xx),查看需要更新的软件列表这种笨方法企图看出他们的区别,但是无奈,还是看不懂!
感觉man说的也不是很清楚啊!
P >= 1000
causes a version to be installed even if this constitutes a downgrade of the package
990 <= P < 1000
causes a version to be installed even if it does not come from the target release, unless the installed version is more recent
500 <= P < 990
causes a version to be installed unless there is a version available belonging to the target release or the installed version is more recent
100 <= P < 500
causes a version to be installed unless there is a version available belonging to some other distribution or the installed version is more recent
0 < P < 100
causes a version to be installed only if there is no installed version of the package
P < 0
prevents the version from being installed
P = 0
has undefined behaviour, do not use it.
哪位大神是接触过这个的,求解答!