Proxmox Backup Server 3.1 available

t.lamprecht

Proxmox Staff Member
Staff member
Jul 28, 2015
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we're pleased to announce the release of Proxmox Backup Server 3.1. It's based on Debian 12.2 "Bookworm", but uses the newer Linux kernel 6.5, and includes ZFS 2.2.0 (with stable fixes from the upcoming 2.2.2 backported).

Here are the highlights
  • Debian 12.2, with a newer Linux kernel 6.5
  • ZFS 2.2.0 including important bugfixes from 2.2.2 already
  • Secure Boot support
  • Local sync jobs
  • Tape Backup system with LTO 9 support
  • Countless improvements for general client and backend usability.
We have included countless bugfixes and improvements on many places; see the release notes for all details.

Release notes
https://pbs.proxmox.com/wiki/index.php/Roadmap#Proxmox_Backup_Server_3.1

Press release
https://www.proxmox.com/en/news/press-releases/proxmox-backup-server-3-1

Download
https://www.proxmox.com/en/downloads
Alternate ISO download:
https://enterprise.proxmox.com/iso

Documentation
https://pbs.proxmox.com/docs

Bugtracker
https://bugzilla.proxmox.com

Source code
https://git.proxmox.com


FAQ
Q: Can I upgrade the latest Proxmox Backup Server 2.x to 3 with apt?
A: Yes, please follow the upgrade instructions on https://pbs.proxmox.com/wiki/index.php/Upgrade_from_2_to_3

Q: How does this integrate into Proxmox Virtual Environment?
A: Just add a Proxmox Backup Server datastore as a new storage target in your Proxmox VE. Make sure that you run the latest Proxmox VE 8.x.

Q: Is Proxmox Backup Server still compatible with older clients or Proxmox VE releases?
A: We are actively testing compatibility between all currently supported major versions, including the previous version. Full compatibility with even older (major) client versions is supported only on a best-effort basis.

Q: How do I install the proxmox-backup-client on my Debian or Ubuntu server?
A: We provide a "Proxmox Backup Client-only Repository", see https://pbs.proxmox.com/docs/installation.html#client-installation

Q: What will happen with the existing backup tool (vzdump) in Proxmox Virtual Environment?
A: You can still use vzdump. The new backup is an additional, but very powerful way to backup and restore your VMs and containers.

Q: Is there any recommended server hardware for the Proxmox Backup Server?
A: We recommend enterprise-grade server hardware components, with fast local SSD/NVMe storage. Access and response times from rotating drives will slow down all backup server operations. See https://pbs.proxmox.com/docs/installation.html#recommended-server-system-requirements

Q: Can I install Proxmox Backup Server on Debian, in a VM, as LXC or alongside with Proxmox VE?
A: Yes, but all this is not the recommended setup (expert use only).

Q: Where can I get more information about upcoming features?
A: Follow the announcement forum and pbs-devel mailing list https://lists.proxmox.com/cgi-bin/mailman/listinfo/pbs-devel, and subscribe to our newsletter https://www.proxmox.com/news and see https://pbs.proxmox.com/wiki/index.php/Roadmap.
 
Thanks for the update. We are missing the notification system introduced in PVE 8.1. Especially the option to configure SMTP server is very useful for remote systems. Configuring postfix with SMTP Auth requires CLI access and cannot be updated easily via UI. Postfix Smarthost sending without SMTP auth is not really an option for remote systems, with dynamic public IPs.
 
Upgraded out lab PBS node with no issues yesterday! Looking forward to S3 support and all the other goodies in flight!
 
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PVE 8.1.3
root@px:~# apt install proxmox-backup-server
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
proxmox-backup-server : Depends: libsgutils2-2 (>= 1.43) but it is not installable
Depends: libssl1.1 (>= 1.1.1) but it is not installable
E: Unable to correct problems, you have held broken packages.

how to solve this problem?
 
PVE 8.1.3
root@px:~# apt install proxmox-backup-server
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
proxmox-backup-server : Depends: libsgutils2-2 (>= 1.43) but it is not installable
Depends: libssl1.1 (>= 1.1.1) but it is not installable
E: Unable to correct problems, you have held broken packages.

how to solve this problem?
It might looks like an "apt install" without "apt update" first ...
 
Пожалуйста, опубликуйте вывод следующих трёх команд
Code:
подходящее обновление
head -n-0 /etc/apt/sources.list /etc/apt/sources.list.d/*
версия proxmox-backup-manager --verbose
[/КОД]
[/QUOTE][/КОД]
[/QUOTE]
 

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Yeah, you still have some bullseye repos active. Change them to bookworm
root@px:~# head -n-0 /etc/apt/sources.list /etc/apt/sources.list.d/*
==> /etc/apt/sources.list <==
deb http://ftp.debian.org/debian bookworm main contrib
deb http://ftp.debian.org/debian bookworm-updates main contrib

# Proxmox VE pve-no-subscription repository provided by proxmox.com,
# NOT recommended for production use
deb http://download.proxmox.com/debian/pve bookworm pve-no-subscription

# security updates
deb http://security.debian.org/debian-security bookworm-security main contrib

deb http://download.proxmox.com/debian/pbs-client bookworm main

deb http://download.proxmox.com/debian/pbs bookworm pbs-no-subscription

deb http://download.proxmox.com/debian/pve bookworm pve-no-subscription

==> /etc/apt/sources.list.d/pbs-enterprise.list <==
deb https://enterprise.proxmox.com/debian/pbs bookworm pbs-enterprise
root@px:~#

Thanks, it helped
 
And tell me which repositories should be registered if I use pve 8.1.3 and pbs on the same server without a subscription?
 
And tell me which repositories should be registered if I use pve 8.1.3 and pbs on the same server without a subscription?

Bash:
deb http://deb.debian.org/debian bookworm main contrib
deb http://deb.debian.org/debian bookworm-updates main contrib

# security updates
deb http://security.debian.org/debian-security bookworm-security main contrib
https://pve.proxmox.com/wiki/Package_Repositories#_repositories_in_proxmox_ve -> "Sources.list"

Bash:
# Proxmox VE pve-no-subscription repository provided by proxmox.com,
# NOT recommended for production use
deb http://download.proxmox.com/debian/pve bookworm pve-no-subscription
https://pve.proxmox.com/wiki/Package_Repositories#sysadmin_no_subscription_repo

Bash:
# Proxmox Backup Server pbs-no-subscription repository provided by proxmox.com,
# NOT recommended for production use
deb http://download.proxmox.com/debian/pbs bookworm pbs-no-subscription
https://pbs.proxmox.com/docs/installation.html#proxmox-backup-no-subscription-repository

Also recommended:
Bash:
deb http://download.proxmox.com/debian/ceph-reef bookworm no-subscription
https://pve.proxmox.com/wiki/Package_Repositories#_ceph_reef_no_subscription_repository
 
Last edited:
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Thanks a lot for this PBS release!
I was able to restore a lot of data just a few days after installing, running and configuring the backup strategy between my node and the PBS after a hardware failure (motherboard) which did not allow me to power on the node!
 
just a question:

in case of upgrade, there is a retro-compatibility?

What i'm asking is: if i'm updating PBS before PVE, is still compatible if running older version on the hypervisor?

Thanks!
 
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Reactions: Gilberto Ferreira
What i'm asking is: if i'm updating PBS before PVE, is still compatible if running older version on the hypervisor?
That's depend how much older is this.
Some qemu doesn't have some features and perhaps PBS could complain about it.
But I am not the right person to answer this question.
Perhaps @fiona @Thomas Lamprecht or other staff members can do the appropriated answer.
 
currently running PVE 7.4 that i'll update later to 8.1 with a SSD swap.
So I want to understand if it's better:

- install new PVE, restore PBS 2.4 and the restore all VMs backup on the new version
- upgrade PBS 2.4 to 3.1, still running on PVE 7.4, take last backups, then move this one to the new installation and restore all VMs
 
What i'm asking is: if i'm updating PBS before PVE, is still compatible if running older version on the hypervisor?
What do you actually mean here?

If it's with Proxmox VE being clients to the backup server, then yes:
Q: Is Proxmox Backup Server still compatible with older clients or Proxmox VE releases?
A: We are actively testing compatibility between all currently supported major versions, including the previous version. Full compatibility with even older (major) client versions is supported only on a best-effort basis.

Or do you mean a host with Proxmox VE and PBS co-installed? As long as it's Proxmox VE 8.x with PBS 3.y, there should be no issue. But there should be no reason to not upgrade to the latest minor release. Otherwise, you're missing (security) updates and fixes.

Or as @Gilberto Ferreira suggested, do you have PBS inside a VM? You can upgrade just fine too, it does not depend on the QEMU or host kernel version. If it does, please let us now since then it's a bug.
 

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