добавить строку с ксено-обновленными датами

Это последующий вопрос по Перекрестная компиляция для armhf и установка статической библиотеки

В принятом ответе в конце упоминается,

Уточнение: Необходимо устанавливать пакеты с несколькими архитектурами с одной и той же версией на все архитектуры. Итак, у вас должен быть libudev-dev:armhf версии 229-4ubuntu21.4, но в вашей текущей конфигурации репозитория эта версия не включена. Итак, вы должны добавить строку с ксениально-обновленными датами, где эта версия поддерживается.

Я хочу знать, как именно я могу сделать следующее?

Итак, вы должны добавить строку с ксениально-обновленными датами, где эта версия поддерживается.

Я новичок в этом, так что подробный ответ с примерами будет полезен.

Обновление 1 (пробные версии согласно комментариям )

с помощью приведенного ниже списка sources.list я пробовал "политику кэширования apt libudev-dev:{amd64,armhf}". Ошибка "sudo apt install libudev-dev:armhf" приведена ниже.

содержимое файла source.list

deb [arch=amd64] http://archive.ubuntu.com/ubuntu xenial-updates main multiverse restricted universe
deb [arch=armhf] http://ports.ubuntu.com/ubuntu-ports xenial-updates main multiverse restricted universe

вывод политики кэширования libudev-dev:{amd64,armhf}

root@ajey-HP-Laptop-15t-dy100:/etc/apt# apt-cache policy libudev-dev:{amd64,armhf}
libudev-dev:
Installed: (none)
Candidate: 229-4ubuntu21.29
Version table:
 229-4ubuntu21.29 500
    500 http://archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages
libudev-dev:armhf:
Installed: (none)
Candidate: 229-4ubuntu21.29
Version table:
 229-4ubuntu21.29 500
    500 http://ports.ubuntu.com/ubuntu-ports xenial-updates/main armhf Packages

вывод sudo apt install libudev-dev:armhf

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:
 libudev-dev:armhf : Depends: libacl1:armhf (>= 2.2.51-8) but it is not installable
                 Depends: libblkid1:armhf (>= 2.19.1) but it is not going to be installed
                 Depends: libc6:armhf (>= 2.17) but it is not going to be installed
                 Depends: libgcc1:armhf (>= 1:3.5) but it is not installable
                 Depends: libkmod2:armhf (>= 5~) but it is not going to be installed
                 Depends: libselinux1:armhf (>= 2.0.65) but it is not installable
                 Depends: libudev1:armhf (= 229-4ubuntu21.29) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

Обновление 2

Попробованное со следующими исходниками в sources.list

deb [arch=amd64] http://archive.ubuntu.com/ubuntu/ xenial main multiverse restricted universe
deb [arch=armhf] http://ports.ubuntu.com/ubuntu-ports/ xenial main multiverse restricted universe
deb [arch=armhf] http://ports.ubuntu.com/ubuntu-ports/ xenial-updates main multiverse restricted universe
deb [arch=amd64] http://archive.ubuntu.com/ubuntu/ xenial-updates main multiverse restricted universe
deb [arch=amd64] http://security.ubuntu.com/ubuntu/ xenial-security main multiverse restricted universe

до сих пор получает ошибку, как описано ниже для sudo apt install libudev-dev:armhf

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:
libudev-dev:armhf : Depends: libacl1:armhf (>= 2.2.51-8) but it is not going to be installed
                 Depends: libblkid1:armhf (>= 2.19.1) but it is not going to be installed
                 Depends: libc6:armhf (>= 2.17) but it is not going to be installed
                 Depends: libgcc1:armhf (>= 1:3.5) but it is not going to be installed
                 Depends: libkmod2:armhf (>= 5~) but it is not going to be installed
                 Depends: libselinux1:armhf (>= 2.0.65) but it is not going to be installed
                 Depends: libudev1:armhf (= 229-4ubuntu21.29) but it is not going to be installed
E: Unable to correct problems, you have held broken packages. 

Обновление -3

Попробованное со следующими исходниками. list but no use, problem not solved yet

deb [arch=armhf] http://ports.ubuntu.com/ubuntu-ports/ xenial main multiverse restricted universe
deb [arch=armhf] http://ports.ubuntu.com/ubuntu-ports/ xenial-updates main multiverse restricted universe
deb [arch=armhf] http://ports.ubuntu.com/ubuntu-ports/ xenial-security main multiverse restricted universe

deb [arch=amd64] http://archive.ubuntu.com/ubuntu/ xenial main multiverse restricted universe
deb [arch=amd64] http://archive.ubuntu.com/ubuntu/ xenial-updates main multiverse restricted universe
deb [arch=amd64] http://archive.ubuntu.com/ubuntu/ xenial-security main multiverse restricted universe

deb [arch=amd64] http://security.ubuntu.com/ubuntu/ xenial main multiverse restricted universe
deb [arch=amd64] http://security.ubuntu.com/ubuntu/ xenial-updates main multiverse restricted universe
deb [arch=amd64] http://security.ubuntu.com/ubuntu/ xenial-security main multiverse restricted universe