virt-customize --install broken

[davosian]

Hi there,

when running the following commands on my Proxmox 7.4-15 cluster, it fails:

ssh root@proxmox-server

apt update && apt install libguestfs-tools -y
wget https://cloud.debian.org/images/cloud/bookworm/latest/debian-12-generic-amd64.qcow2
virt-customize -a debian-12-generic-amd64.qcow2 --install qemu-guest-agent

The error I am getting is as follows:

[   0.0] Examining the guest ...
[   3.6] Setting a random seed
virt-customize: warning: random seed could not be set for this type of
guest
[   3.6] Installing packages: qemu-guest-agent
Get:1 file:/etc/apt/mirrors/debian.list Mirrorlist [30 B]
Get:5 file:/etc/apt/mirrors/debian-security.list Mirrorlist [39 B]
Ign:2 https://deb.debian.org/debian bookworm InRelease
Ign:3 https://deb.debian.org/debian bookworm-updates InRelease
Ign:4 https://deb.debian.org/debian bookworm-backports InRelease
Ign:6 https://deb.debian.org/debian-security bookworm-security InRelease
Ign:2 https://deb.debian.org/debian bookworm InRelease
Ign:3 https://deb.debian.org/debian bookworm-updates InRelease
Ign:4 https://deb.debian.org/debian bookworm-backports InRelease
Ign:6 https://deb.debian.org/debian-security bookworm-security InRelease
Ign:2 https://deb.debian.org/debian bookworm InRelease
Ign:3 https://deb.debian.org/debian bookworm-updates InRelease
Ign:4 https://deb.debian.org/debian bookworm-backports InRelease
Ign:6 https://deb.debian.org/debian-security bookworm-security InRelease
Err:2 https://deb.debian.org/debian bookworm InRelease
  Temporary failure resolving 'deb.debian.org'
Err:3 https://deb.debian.org/debian bookworm-updates InRelease
  Temporary failure resolving 'deb.debian.org'
Err:4 https://deb.debian.org/debian bookworm-backports InRelease
  Temporary failure resolving 'deb.debian.org'
Err:6 https://deb.debian.org/debian-security bookworm-security InRelease
  Temporary failure resolving 'deb.debian.org'
Reading package lists...
W: Failed to fetch mirror+file:/etc/apt/mirrors/debian.list/dists/bookworm/InRelease  Temporary failure resolving 'deb.debian.org'
W: Failed to fetch mirror+file:/etc/apt/mirrors/debian.list/dists/bookworm-updates/InRelease  Temporary failure resolving 'deb.debian.org'
W: Failed to fetch mirror+file:/etc/apt/mirrors/debian.list/dists/bookworm-backports/InRelease  Temporary failure resolving 'deb.debian.org'
W: Failed to fetch mirror+file:/etc/apt/mirrors/debian-security.list/dists/bookworm-security/InRelease  Temporary failure resolving 'deb.debian.org'
W: Some index files failed to download. They have been ignored, or old ones used instead.
Reading package lists...
Building dependency tree...
Reading state information...
E: Unable to locate package qemu-guest-agent
Get:1 file:/etc/apt/mirrors/debian.list Mirrorlist [30 B]
Get:5 file:/etc/apt/mirrors/debian-security.list Mirrorlist [39 B]
Ign:2 https://deb.debian.org/debian bookworm InRelease
Ign:3 https://deb.debian.org/debian bookworm-updates InRelease
Ign:4 https://deb.debian.org/debian bookworm-backports InRelease
Ign:6 https://deb.debian.org/debian-security bookworm-security InRelease
Ign:2 https://deb.debian.org/debian bookworm InRelease
Ign:3 https://deb.debian.org/debian bookworm-updates InRelease
Ign:4 https://deb.debian.org/debian bookworm-backports InRelease
Ign:6 https://deb.debian.org/debian-security bookworm-security InRelease
Ign:2 https://deb.debian.org/debian bookworm InRelease
Ign:3 https://deb.debian.org/debian bookworm-updates InRelease
Ign:4 https://deb.debian.org/debian bookworm-backports InRelease
Ign:6 https://deb.debian.org/debian-security bookworm-security InRelease
Err:2 https://deb.debian.org/debian bookworm InRelease
  Temporary failure resolving 'deb.debian.org'
Err:3 https://deb.debian.org/debian bookworm-updates InRelease
  Temporary failure resolving 'deb.debian.org'
Err:4 https://deb.debian.org/debian bookworm-backports InRelease
  Temporary failure resolving 'deb.debian.org'
Err:6 https://deb.debian.org/debian-security bookworm-security InRelease
  Temporary failure resolving 'deb.debian.org'
Reading package lists...
W: Failed to fetch mirror+file:/etc/apt/mirrors/debian.list/dists/bookworm/InRelease  Temporary failure resolving 'deb.debian.org'
W: Failed to fetch mirror+file:/etc/apt/mirrors/debian.list/dists/bookworm-updates/InRelease  Temporary failure resolving 'deb.debian.org'
W: Failed to fetch mirror+file:/etc/apt/mirrors/debian.list/dists/bookworm-backports/InRelease  Temporary failure resolving 'deb.debian.org'
W: Failed to fetch mirror+file:/etc/apt/mirrors/debian-security.list/dists/bookworm-security/InRelease  Temporary failure resolving 'deb.debian.org'
W: Some index files failed to download. They have been ignored, or old ones used instead.
Reading package lists...
Building dependency tree...
Reading state information...
E: Unable to locate package qemu-guest-agent
virt-customize: error:
        export DEBIAN_FRONTEND=noninteractive
        apt_opts='-q -y -o Dpkg::Options::=--force-confnew'
        apt-get $apt_opts update
        apt-get $apt_opts install 'qemu-guest-agent'
      : command exited with an error

If reporting bugs, run virt-customize with debugging enabled and include
the complete output:

  virt-customize -v -x [...]

I tried disabling the firewall on this node and I tried the same using an ubuntu image. The result was always the same. Any idea why this `virt-customize` command cannot access the mirrors?

 

[Philipp Hufnagl]

The packages are bookwork (Debian 12), Proxmox 7 uses bullseye (Debian 11)

 

[davosian]

I just found the culpit: the DNS entries on the node where not correct. When I added something like 8.8.8.8, the command worked fine.
It is somewhat weird, because a curl to google.com was resolving correctly (but maybe going through another DNS Server by accident - I had two configured). Also, I had no issue running the command on a VM in Proxmox, only on the node itself.

Anyways, case closed