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Proxmox Backup Server LXC fails to retart after update #1593

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opened 2026-02-05 01:42:25 +03:00 by OVERLORD · 9 comments
OVERLORD commented 2026-02-05 01:42:25 +03:00
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Originally created by @emsofo on GitHub (Sep 7, 2025).

✅ Have you read and understood the above guidelines?

yes

📜 What is the name of the script you are using?

Proxmox Backup Server LXC

📂 What was the exact command used to execute the script?

bash -c "$(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/ct/proxmox-backup-server.sh)"

⚙️ What settings are you using?

  • Default Settings
  • Advanced Settings

🖥️ Which Linux distribution are you using?

No response

📈 Which Proxmox version are you on?

pve-manager/9.0.6/49c767b70aeb6648 (running kernel: 6.14.11-1-pve)

📝 Provide a clear and concise description of the issue.

After creating a working instance of PBS LXC - and setting it up properly, some updates came up . . . when I tried to update within the PBS interface itself, the updates seemed to have been applied, yet after rebooting the LXC - it hangs.
I then tried to update within the LXC console itself using the script - which also seemed to work - (made a snapshot in advance of course) - same effect - after rebooting the LXC simply hangs and can't use the console or anything. Seems to be running, so I can kill it - but simple shows blank screen and blinking cursor. Something is broke

🔄 Steps to reproduce the issue.

Create PBS using script - set up PBS instance (datastore, post-install script, etc.) - try to update using PBS interface or using script in LXC seems to be applied but LXC fails to reboot

❌ Paste the full error output (if available).

NO error - just doesn't boot - PVE console shows LXC start - that's all

🖼️ Additional context (optional).

No response

Originally created by @emsofo on GitHub (Sep 7, 2025). ### ✅ Have you read and understood the above guidelines? yes ### 📜 What is the name of the script you are using? Proxmox Backup Server LXC ### 📂 What was the exact command used to execute the script? bash -c "$(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/ct/proxmox-backup-server.sh)" ### ⚙️ What settings are you using? - [x] Default Settings - [ ] Advanced Settings ### 🖥️ Which Linux distribution are you using? _No response_ ### 📈 Which Proxmox version are you on? pve-manager/9.0.6/49c767b70aeb6648 (running kernel: 6.14.11-1-pve) ### 📝 Provide a clear and concise description of the issue. After creating a working instance of PBS LXC - and setting it up properly, some updates came up . . . when I tried to update within the PBS interface itself, the updates seemed to have been applied, yet after rebooting the LXC - it hangs. I then tried to update within the LXC console itself using the script - which also seemed to work - (made a snapshot in advance of course) - same effect - after rebooting the LXC simply hangs and can't use the console or anything. Seems to be running, so I can kill it - but simple shows blank screen and blinking cursor. Something is broke ### 🔄 Steps to reproduce the issue. Create PBS using script - set up PBS instance (datastore, post-install script, etc.) - try to update using PBS interface or using script in LXC seems to be applied but LXC fails to reboot ### ❌ Paste the full error output (if available). NO error - just doesn't boot - PVE console shows LXC start - that's all ### 🖼️ Additional context (optional). _No response_
OVERLORD added the bug label 2026-02-05 01:42:25 +03:00
OVERLORD commented 2026-02-05 01:42:28 +03:00
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@MickLesk commented on GitHub (Sep 7, 2025):

And If you start with pct start ? That Sound Like an system issue Not an Script issue

@MickLesk commented on GitHub (Sep 7, 2025): And If you start with pct start ? That Sound Like an system issue Not an Script issue
OVERLORD commented 2026-02-05 01:42:32 +03:00
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@Bartsmet commented on GitHub (Sep 7, 2025):

I have the same issue, tried it several times.

  • Install new LXC proxmox backup server. Script still installs old 3.x version.
  • Run the upgrade script : New version is installed.
  • Try to reboot the container. Container won't boot.
  • Do a manual boot :
    ()
    run_buffer: 571 Script exited with status 25
    lxc_init: 845 Failed to run lxc.hook.pre-start for container "20008"
    __lxc_start: 2034 Failed to initialize container "20008"
    TASK ERROR: startup for container '20008' failed

Edit : I suppose it has something to do with the template used, wich is a different version of debian.

@Bartsmet commented on GitHub (Sep 7, 2025): I have the same issue, tried it several times. - Install new LXC proxmox backup server. Script still installs old 3.x version. - Run the upgrade script : New version is installed. - Try to reboot the container. Container won't boot. - Do a manual boot : () run_buffer: 571 Script exited with status 25 lxc_init: 845 Failed to run lxc.hook.pre-start for container "20008" __lxc_start: 2034 Failed to initialize container "20008" TASK ERROR: startup for container '20008' failed Edit : I suppose it has something to do with the template used, wich is a different version of debian.
OVERLORD commented 2026-02-05 01:42:35 +03:00
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@MickLesk commented on GitHub (Sep 7, 2025):

You mean Upgrade to pbs 4.0? With Debian 13?

@MickLesk commented on GitHub (Sep 7, 2025): You mean Upgrade to pbs 4.0? With Debian 13?
OVERLORD commented 2026-02-05 01:42:40 +03:00
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@emsofo commented on GitHub (Sep 7, 2025):

You mean Upgrade to pbs 4.0? With Debian 13?

Nope - just regular updating from console with script or direct in PBS gui

@emsofo commented on GitHub (Sep 7, 2025): > You mean Upgrade to pbs 4.0? With Debian 13? Nope - just regular updating from console with script or direct in PBS gui
OVERLORD commented 2026-02-05 01:42:44 +03:00
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@MickLesk commented on GitHub (Sep 7, 2025):

Can you Show more Output ?

pct config 20008 | grep -E 'hookscript|unprivileged|features|ostype|template|rootfs'

@MickLesk commented on GitHub (Sep 7, 2025): Can you Show more Output ? pct config 20008 | grep -E 'hookscript|unprivileged|features|ostype|template|rootfs'
OVERLORD commented 2026-02-05 01:42:47 +03:00
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@emsofo commented on GitHub (Sep 9, 2025):

here's mine if that helps:

root@FoxProxMini:~# pct config 113 | grep -E 'hookscript|unprivileged|features|ostype|template|rootfs'
features: keyctl=1,nesting=1
ostype: debian
rootfs: FPMiniThin:vm-113-disk-1,size=10G
unprivileged: 1

@emsofo commented on GitHub (Sep 9, 2025): here's mine if that helps: root@FoxProxMini:~# pct config 113 | grep -E 'hookscript|unprivileged|features|ostype|template|rootfs' features: keyctl=1,nesting=1 ostype: debian rootfs: FPMiniThin:vm-113-disk-1,size=10G unprivileged: 1
OVERLORD commented 2026-02-05 01:42:51 +03:00
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@Bartsmet commented on GitHub (Sep 9, 2025):

I did update today with a new version of pve-container and now it's working!

@Bartsmet commented on GitHub (Sep 9, 2025): I did update today with a new version of pve-container and now it's working!
OVERLORD commented 2026-02-05 01:42:53 +03:00
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@Bartsmet commented on GitHub (Sep 9, 2025):

I think this topic can be closed. Did 2 tests :

  • I was now able to boot the upgraded container from 2 days ago.
  • Creating a fresh backupserver and running the upgrade script works as well, even after a reboot and migration to another cluster host.
@Bartsmet commented on GitHub (Sep 9, 2025): I think this topic can be closed. Did 2 tests : - I was now able to boot the upgraded container from 2 days ago. - Creating a fresh backupserver and running the upgrade script works as well, even after a reboot and migration to another cluster host.
OVERLORD commented 2026-02-05 01:42:56 +03:00
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@R0rit0 commented on GitHub (Sep 10, 2025):

I had the same exact issue, nothing was working
Til I updated the 'pve-container' package on the proxmox server host as mentioned here > Worked perfectly

@R0rit0 commented on GitHub (Sep 10, 2025): I had the same exact issue, nothing was working Til I updated the 'pve-container' package on the proxmox server host as mentioned here > Worked perfectly
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Reference: starred/ProxmoxVE#1593
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