无法在Jammy上安装libc6 6:i 386

Question

最新的amd64贾米安装。

% cat /etc/issue
Ubuntu 22.04.1 LTS \n \l

% dpkg --print-foreign-architectures
i386

% dpkg -l libc6
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name           Version         Architecture Description
+++-==============-===============-============-=================================
ii  libc6:amd64    2.35-0ubuntu3.1 amd64        GNU C Library: Shared libraries
in  libc6:i386     <none>          i386         (no description available)

据我所理解，以下是阻止libc6:i386安装的原因：

% sudo dpkg -i libc6_2.35-0ubuntu3.1_i386.deb
...
(Reading database ... 228990 files and directories currently installed.)
Preparing to unpack libc6_2.35-0ubuntu3.1_i386.deb ...
Unpacking libc6:i386 (2.35-0ubuntu3.1) ...
dpkg: error processing archive libc6_2.35-0ubuntu3.1_i386.deb (--install):
 trying to overwrite shared '/usr/share/doc/libc6/NEWS.Debian.gz', which is different from other instances of package libc6:i386
Processing triggers for libc-bin (2.35-0ubuntu3.1) ...
Errors were encountered while processing:
 libc6_2.35-0ubuntu3.1_i386.deb

两个问题：

1. 如何在dpkg中恢复in包的i386状态？包半装使系统看上去乱七八糟，这是相当可悲的；
2. 上面是Ubuntu打包中的临时错误吗？我是否将一个bug提交给规范？我不想尝试手动删除违规的NEWS.Debian文件，因为我不想危及系统的稳定性，谁知道还有哪些进一步的冲突.

作为一个PS，运行ubuntu-bug libc6最终会产生相当“有趣”的输出：

% ubuntu-bug libc6                           

*** Collecting problem information

The collected information can be sent to the developers to improve the
application. This might take a few minutes.
.......

*** Problem in libc6

The problem cannot be reported:

This does not seem to be an official Ubuntu package.

Answer 1

结果，由于某种原因，我的sources.list缺少了jammy-updates部分(它有jammy部分和jammy-security部分)。

在我加入之后

deb http://mirror/ubuntu/ jammy-updates main restricted

与universe/multiverse类似的条目，我能够通过基本的apt-get update/install方式安装libc6:i386。