非常符合标题所说的。新的转折是，我意识到这和这和这 讨论和相关回复。但是……
me@me:~$ sudo apt-get update
Hit:1 http://fr.archive.ubuntu.com/ubuntu jammy InRelease
Hit:2 http://fr.archive.ubuntu.com/ubuntu jammy-updates InRelease
Hit:3 http://fr.archive.ubuntu.com/ubuntu jammy-backports InRelease
Hit:4 http://security.ubuntu.com/ubuntu jammy-security InRelease
Reading package lists... Done
me@me:~$ sudo apt-get dist-upgrade
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
The following packages have been kept back:
tzdata xdg-utils
0 upgraded, 0 newly installed, 0 to remove and 2 not upgraded.
换句话说，我没有冲突的软件包存储库，如参考文献中所建议的那样。3，我已经使用过apt-get dist-upgrade，正如前两个参考文献所建议的那样。当然我能手动更新，
me@me:~$ sudo apt-get install -y tzdata xdg-utils
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following packages will be upgraded:
tzdata xdg-utils
2 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
Need to get 397 kB of archives.
After this operation, 48,1 kB disk space will be freed.
Get:1 http://fr.archive.ubuntu.com/ubuntu jammy-updates/main amd64 tzdata all 2022c-0ubuntu0.22.04.0 [335 kB]
Get:2 http://fr.archive.ubuntu.com/ubuntu jammy-updates/main amd64 xdg-utils all 1.1.3-4.1ubuntu3~22.04.1 [61,9 kB]
Fetched 397 kB in 0s (1.462 kB/s)
Preconfiguring packages ...
(Reading database ... 346424 files and directories currently installed.
Preparing to unpack .../tzdata_2022c-0ubuntu0.22.04.0_all.deb ...
Unpacking tzdata (2022c-0ubuntu0.22.04.0) over (2022a-0ubuntu1) ..
Preparing to unpack .../xdg-utils_1.1.3-4.1ubuntu3~22.04.1_all.deb ...
Unpacking xdg-utils (1.1.3-4.1ubuntu3~22.04.1) over (1.1.3-4.1ubuntu1.22.04.1) ...
Setting up tzdata (2022c-0ubuntu0.22.04.0) ...
Current default time zone: 'Europe/Paris'
Universal Time is now: Fri Sep 2 07:52:12 UTC 2022.
Run 'dpkg-reconfigure tzdata' if you wish to change it.
Setting up xdg-utils (1.1.3-4.1ubuntu3~22.04.1) ...
Processing triggers for man-db (2.10.2-1) ...
因此，这不仅仅是一个问题，更是一个麻烦，但：首先，尽管我尝试清除缓存等，这种情况仍然经常发生（apt-get clean && apt-get autoclean)，其次我想知道导致问题的原因，因为即使在apt-get dist-upgrade显然，这让我怀疑事情可能比表面上看起来的要复杂。干杯，谢谢。
答案1
如果这些 分阶段更新，那么通过强制安装，您就成为了 beta 测试员。
此类软件包的分发有限，旨在让某些用户先获得以便报告损坏的软件包。可以强制安装这些软件包，但不建议这样做。
要测试被扣留的包裹是否分阶段，请运行
apt-cache policy <packagename>
并查找“分阶段”百分比，例如“（分阶段 xx%）”。