# Installation failed on Debian 11 (ProxMox/KVM)

**URL:** https://meta.discourse.org/t/installation-failed-on-debian-11-proxmox-kvm/251292
**Category:** Self-hosting
**Created:** [January 10, 2023, 2:22pm UTC](https://meta.discourse.org/t/installation-failed-on-debian-11-proxmox-kvm/251292 "2023-01-10T14:22:16Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![JammyDodger](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/jammydodger/32/254611_2.png) [@JammyDodger](https://meta.discourse.org/u/JammyDodger)
#### Post date: [January 10, 2023, 2:28pm UTC](https://meta.discourse.org/t/installation-failed-on-debian-11-proxmox-kvm/251292/2 "2023-01-10T14:28:29Z")

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Hello and welcome @lukasjelinek 🙂

There have been a couple of reports of this recently, though I’m afraid no solution as yet. I believe @hiddenseal moved their instance to a fresh server and that solved it for them, and @littleviolette’s issue is still outstanding:

> [@Docker sometimes fails to connect to github.com](https://meta.discourse.org/t/docker-sometimes-fails-to-connect-to-github-com/250643):
>
> While trying to upgrade Discourse via ./launcher rebuild app I get an issue with fatal: unable to access 'https://github.com/discourse/REPO.git/': Failed to connect to github.com port 443: Connection timed out However, the problem is: sometimes this fails even for discourse. But if you try to do it again, immediately after, with no changes, it may go through, but fail on one of the plugins. If I remove all the plugins, the discourse connection may fail or it may go through and actually build t…

> [@HELP: Discourse Update broke app -- fails to rebuild](https://meta.discourse.org/t/help-discourse-update-broke-app-fails-to-rebuild/251043):
>
> When I tried to update to the latest version today, I encountered the follow error: fatal: unable to access 'https://github.com/discourse/discourse.git/': Could not resolve host: github.com I am running the app on a DigitalOcean Droplet Ubuntu 18.04.6 LTS (GNU/Linux 3.13.0-52-generic x86\_64) I am not familiar with docker or server-side programming. I would really appreciate your help! pray Here is the error code in its entirety: root@forum:/var/discourse# ./launcher rebuild app x86\_64 arc…

Is there anything similar in those topics that sounds familiar to you that may help us track down the cause?

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