I'm using Azure Update Manager to update my Linux VM. I've not done anything manually. Spent months to automatically my Linux image but with not luck.

Went to Azure Portal-> Azure Update Manager -> Select my VM -> and click install update.

An error occurs as the following.

Package failed to install: python3.10 (3.10.12-1~22.04.6).
Error code: 100
Command used: sudo DEBIAN_FRONTEND=noninteractive LANG=en_US.UTF8 apt-get -y --only-upgrade true install python3.10=3.10.12-1~22.04.6 libpython3.10=3.10.12-1~22.04.6 libpython3.10-stdlib=3.10.12-1~22.04.6 python3.10-minimal=3.10.12-1~22.04.6 libpython3.10-minimal=3.10.12-1~22.04.6

Command output:
Reading package lists...
Building dependency tree...
Reading state information...

The following packages will be upgraded:
    libpython3.10 libpython3.10-minimal libpython3.10-stdlib python3.10 python3.10-minimal

5 upgraded, 0 newly installed, 0 to remove, and 58 not upgraded.
2 not fully installed or removed.

Need to get 0 B/7,379 kB of archives.
After this operation, 10.2 kB of additional disk space will be used.

Setting up base-files (12ubuntu4.7) ...
Configuration file '/etc/issue' modified since installation.
Package distributor has shipped an updated version.

What would you like to do about it?
Your options are: 
    Y or I: install the package maintainer's version
    N or O: keep your currently-installed version
    D: show the differences between the versions
    Z: start a shell to examine the situation

dpkg: error processing package base-files (--configure):
end of file on stdin at conffile prompt

Errors were encountered while processing: base-files
needrestart is being skipped since dpkg has failed
E: Sub-process /usr/bin/dpkg returned an error code (1)

I didn't find any documentation on Microsoft website. Would you please give any hint on how to solve it ?

I'm using Azure Update Manager to update my Linux VM. I've not done anything manually. Spent months to automatically my Linux image but with not luck.

Went to Azure Portal-> Azure Update Manager -> Select my VM -> and click install update.

An error occurs as the following.

Package failed to install: python3.10 (3.10.12-1~22.04.6).
Error code: 100
Command used: sudo DEBIAN_FRONTEND=noninteractive LANG=en_US.UTF8 apt-get -y --only-upgrade true install python3.10=3.10.12-1~22.04.6 libpython3.10=3.10.12-1~22.04.6 libpython3.10-stdlib=3.10.12-1~22.04.6 python3.10-minimal=3.10.12-1~22.04.6 libpython3.10-minimal=3.10.12-1~22.04.6

Command output:
Reading package lists...
Building dependency tree...
Reading state information...

The following packages will be upgraded:
    libpython3.10 libpython3.10-minimal libpython3.10-stdlib python3.10 python3.10-minimal

5 upgraded, 0 newly installed, 0 to remove, and 58 not upgraded.
2 not fully installed or removed.

Need to get 0 B/7,379 kB of archives.
After this operation, 10.2 kB of additional disk space will be used.

Setting up base-files (12ubuntu4.7) ...
Configuration file '/etc/issue' modified since installation.
Package distributor has shipped an updated version.

What would you like to do about it?
Your options are: 
    Y or I: install the package maintainer's version
    N or O: keep your currently-installed version
    D: show the differences between the versions
    Z: start a shell to examine the situation

dpkg: error processing package base-files (--configure):
end of file on stdin at conffile prompt

Errors were encountered while processing: base-files
needrestart is being skipped since dpkg has failed
E: Sub-process /usr/bin/dpkg returned an error code (1)

I didn't find any documentation on Microsoft website. Would you please give any hint on how to solve it ?

• linux
• azure
• azure-virtual-machine

• To ensure noninteractive updates work in the future, edit the APT configuration file. – Arko Commented Nov 20, 2024 at 13:14

1 Answer 1

The error you’re encountering occurs because of the dpkg process is prompting for input to decide what to do about a configuration file conflict, but the DEBIAN_FRONTEND=noninteractive setting is preventing it from accepting input.

Manually configure the conflicting package by running the below command to address the package issue

sudo dpkg --configure -a

now retry the update process, it will work

sudo apt-get update
sudo apt-get upgrade -y

and to avoid similar issues in the future, modify the DEBIAN_FRONTEND=noninteractive behavior to handle configuration file conflicts automatically. As I mentioned in the comment section, edit the /etc/apt/apt.conf.d/90force-conf

and add this

Dpkg::Options {
    "--force-confdef";
    "--force-confold";
};

You won't get the linux fix on MS website, except these three-

• Troubleshoot issues with Azure Update Manager
• Troubleshoot Update Management issues
• Update on Azure Linux VM fails