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libc6 の問題のある Debian 10 に openssh-server をインストールする

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libc6 の問題のある Debian 10 に openssh-server をインストールする

openssh-server をインストールしようとしています。しかし、次のエラーが繰り返し発生します:

The following packages have unmet dependencies:
 libc6 : Breaks: openssh-server (< 1:8.1p1-5) but 1:7.9p1-10+deb10u2 is to be installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.

さまざまな解決策を再現しようとしましたが、失敗しました。 1 つの制限は、すべてのパッケージに対して実行できないことですapt upgrade。 アップグレードできるものを特定する必要があります。

openssh-server をインストールしようとしたときに実行したコマンドは次のとおりです。

~$ apt search libc6 | grep -i installed

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

libc6/unstable,now 2.31-9 amd64 [installed]
libtext-iconv-perl/stable,now 1.7-5+b7 amd64 [installed]

~$ ls -lh /var/cache/apt/archives/libc6_2*
-rw-r--r-- 1 root root 2.7M Dec 17 08:41 /var/cache/apt/archives/libc6_2.31-6_amd64.deb
-rw-r--r-- 1 root root 2.7M Jan  5 15:29 /var/cache/apt/archives/libc6_2.31-9_amd64.deb

~$ sudo apt-get install --only-upgrade libc6
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Suggested packages:
  glibc-doc
The following packages will be upgraded:
  libc6
1 upgraded, 0 newly installed, 0 to remove and 19 not upgraded.
Need to get 2,812 kB of archives.
After this operation, 1,024 B of additional disk space will be used.
Get:1 https://deb.debian.org/debian unstable/main amd64 libc6 amd64 2.31-9 [2,812 kB]
Fetched 2,812 kB in 2s (1,475 kB/s)                     
Reading changelogs... Done
Preconfiguring packages ...
(Reading database ... 165941 files and directories currently installed.)
Preparing to unpack .../libc6_2.31-9_amd64.deb ...
Unpacking libc6:amd64 (2.31-9) over (2.31-6) ...
Setting up libc6:amd64 (2.31-9) ...
Processing triggers for libc-bin (2.31-6) ...

~$ sudo apt-get install openssh-server
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 libc6 : Breaks: openssh-server (< 1:8.1p1-5) but 1:7.9p1-10+deb10u2 is to be installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.

ソースリストの内容:

deb https://deb.debian.org/debian buster main contrib non-free
deb-src https://deb.debian.org/debian buster main contrib non-free

deb https://deb.debian.org/debian-security/ buster/updates main contrib non-free
deb-src https://deb.debian.org/debian-security/ buster/updates main contrib non-free

deb https://deb.debian.org/debian buster-updates main contrib non-free
deb-src https://deb.debian.org/debian buster-updates main contrib non-free

この問題を解決する方法を教えてください。よろしくお願いします。

試した解決策:

  1. https://warlord0blog.wordpress.com/2020/08/14/libc6-and-openssh/
  2. debian 10.4 に sshd (openssh-server) をインストールできない

[編集2]: apt-cache ポリシーの出力を更新しました

~$ apt-cache policy libc6 openssh-server
libc6:
  Installed: 2.31-9
  Candidate: 2.31-9
  Version table:
 *** 2.31-9 100
        100 /var/lib/dpkg/status
     2.28-10 900
        900 http://deb.debian.org/debian buster/main amd64 Packages
openssh-server:
  Installed: (none)
  Candidate: 1:7.9p1-10+deb10u2
  Version table:
     1:8.4p1-2~bpo10+1 100
        100 http://deb.debian.org/debian buster-backports/main amd64 Packages
     1:7.9p1-10+deb10u2 900
        900 http://deb.debian.org/debian buster/main amd64 Packages
     1:7.9p1-10+deb10u1 900
        900 http://deb.debian.org/debian-security buster/updates/main amd64 Packages

答え1

ソースリストが間違っているようです。

</etc/apt/sources.list>を開いてバージョンが「Strech」になっているか確認します。

更新して保存しない場合は、#apt-get update を実行してインストールを試みてください :)

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