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Possible Bug: Veeam Software Appliance installation error

  • October 22, 2025
  • 8 comments
  • 171 views
Iams3le
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While installing Veeam Backup & Replication v13.0.0.4967 from the ISO (Rocky Linux–based appliance), the installer stops mid-way with an “An unknown error has occurred” message from Anaconda.
The traceback points to dnf/base.py related to remote package selection or repository fetching.

This occurred during the “Downloading packages” stage. Who else has run into this error?

 

Another error, you could run into is this “Appliance Installation Stuck on "Configuring addons" and the following KB addresses what to do correctly.

Best answer by Iams3le

I found the culprit: it had to do with the PVE, and I can attest that the installation was completed successfully. I will discuss this in the blog post.

 

[Microsoft MVP 2x | Veeam Legend (2021 -2025) | VMware vExpert 5x | Cisco Champion 3x | Object First Ace 2x]

8 comments

Chris.Childerhose
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  • Chris.Childerhose
  • Veeam Legend, Veeam Vanguard
  • 9583 comments
  • October 22, 2025

Have not used the ISO other than to deploy VEM which went fine.  Maybe check the Forums to see?

Chris Childerhose - VMCA2024 | VMCE2023 | VMCE-SP2024 | Veeam Vanguard 8* | Veeam Legend 5* | VUG Canada Leader | vExpert 6* | Toronto VMUG Leader | VCAP-DCV/VCP-DCV | Object First Ace | Cisco Champion | Twitter: @cchilderhose | Blog Site – https://just-virtualization.tech
Iams3le
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  • Iams3le
  • Author
  • Veeam Legend
  • 1546 comments
  • October 22, 2025

Have not used the ISO other than to deploy VEM which went fine.  Maybe check the Forums to see?

I also tried for VBEM, same issue! I am trying to redownload the ISO. Otherwise, I will search the forum tomorrow.

[Microsoft MVP 2x | Veeam Legend (2021 -2025) | VMware vExpert 5x | Cisco Champion 3x | Object First Ace 2x]
coolsport00
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  • coolsport00
  • Veeam Legend
  • 4903 comments
  • October 22, 2025

Agree with Chris here...post in the Forums to let PMs know, or report a bug via Support. Thanks for sharing Christian. 👍🏻

Shane Williford - Veeam VMCA/VMCE | Veeam Legend | VUG Leader | VCP-DCV | Twitter: @coolsport00
Iams3le
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  • Iams3le
  • Author
  • Veeam Legend
  • 1546 comments
  • Answer
  • October 23, 2025

I found the culprit: it had to do with the PVE, and I can attest that the installation was completed successfully. I will discuss this in the blog post.

 

[Microsoft MVP 2x | Veeam Legend (2021 -2025) | VMware vExpert 5x | Cisco Champion 3x | Object First Ace 2x]
Chris.Childerhose
Forum|alt.badge.img+21
  • Chris.Childerhose
  • Veeam Legend, Veeam Vanguard
  • 9583 comments
  • October 23, 2025

Glad to hear you figured it out and looking forward to the answer.

Chris Childerhose - VMCA2024 | VMCE2023 | VMCE-SP2024 | Veeam Vanguard 8* | Veeam Legend 5* | VUG Canada Leader | vExpert 6* | Toronto VMUG Leader | VCAP-DCV/VCP-DCV | Object First Ace | Cisco Champion | Twitter: @cchilderhose | Blog Site – https://just-virtualization.tech
coolsport00
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  • coolsport00
  • Veeam Legend
  • 4903 comments
  • October 23, 2025

Ah ok. Glad you got it sorted Christian 👍🏻

Shane Williford - Veeam VMCA/VMCE | Veeam Legend | VUG Leader | VCP-DCV | Twitter: @coolsport00
H
  • HerrFreddy
  • New Here
  • 1 comment
  • October 24, 2025

​@Iams3le 

I found the culprit: it had to do with the PVE, and I can attest that the installation was completed successfully. I will discuss this in the blog post.

 

Dear ​@Iams3le 

Can you provide the solution? We stuck on the same error...

Iams3le
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  • Iams3le
  • Author
  • Veeam Legend
  • 1546 comments
  • October 24, 2025

​@Iams3le 

I found the culprit: it had to do with the PVE, and I can attest that the installation was completed successfully. I will discuss this in the blog post.

 

Dear ​@Iams3le 

Can you provide the solution? We stuck on the same error...

Kindly ensure that the ISO is correctly copied to Proxmox storage (local, NFS etc as it is in your case). This time, I waited for the upload status to be complete (ok) and it worked eventually. I am not exactly sure what happened in the first upload. Do not forget to verify the checksum for the ISO before upload!

 

[Microsoft MVP 2x | Veeam Legend (2021 -2025) | VMware vExpert 5x | Cisco Champion 3x | Object First Ace 2x]


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