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Alternatively, the explicit resource links as below:

A glimpse at Proxmox Quality Assurance 27 Dec 2024 28 Dec 2024 What kind of testing procedures do they use at Proxmox and how does your bug-reporting fit into it? How consistent and thorough is regression testing before users get hold of a public package?
Backup Cluster configuration - /etc/pve 18 Sep 2024 02 Nov 2024 Backup cluster-wide configuration virtual filesystem in a safe manner, plan for disaster recovery for the case of corrupt database. A situation more common than anticipated.
Container shell with no password 25 Nov 2024 25 Nov 2024 Do not set passwords on container users, get shell with native LXC tooling taking advantage of the host authentication. Reduce attack surfaces of exposed services.
DHCP setup of a cluster 22 Sep 2024 24 Nov 2024 Keep control of the entire cluster pool of IPs from your networking plane. Avoid potential IP conflicts and streamline automated deployments with DHCP assigned, albeit statically reserved assignments.
DHCP setup of a single node 28 Sep 2024 14 Dec 2024 Set up your sole node Proxmox VE install as any other server - with DHCP assigned IP address. Useful when IPs are managed as static reservations or dynamic environments. No pesky scripting involved.
ERROR: dpkg processing archive during apt install 31 Jan 2025 31 Jan 2025 Conflicts in files as packaged by Proxmox and what finds its way into underlying Debian install do arise. Pass proper options to the apt command for remedy.
ERROR: failed to load local private key 10 Oct 2024 22 Nov 2024 Misleading error message during failed boot-up of a cluster node that can send you chasing a red herring. Recognise it and rectify the actual underlying issue.
Extract Cluster configuration - /etc/pve 03 Oct 2024 02 Nov 2024 Recover individual cluster configuration without need for a bogus node. Both from previous backup or a corrupt database. The source does not need to originate from the same cluster.
Getting rid of systemd-boot 01 Jan 2025 01 Jan 2025 Ditch the unexpected bootloader from ZFS install on a UEFI system without SecureBoot. Replace it with the more common GRUB and remove superfluous BIOS boot partition.
How Proxmox VE shreds your SSDs 20 Dec 2024 20 Dec 2024 Debug-level look at what exactly is wrong with the crucial component of every single Proxmox node, including non-clustered ones. History of regressions tracked to decisions made during increase of size limits.
How to disable HA for maintenance 14 Nov 2024 21 Nov 2024 Avoid unexpected non-suspect node reboot during maintenance in any High Availability cluster. No need to wait for any grace periods until it becomes inactive by itself, no uncertainties.
How to disable HA permanently 14 Nov 2024 21 Nov 2024 Do away with the High Availability stack in a safe manner. Avoid the risk of reboots when troubleshooting suspected hardware woes. Particularly useful for frequent loss-of-quorum scenarios.
Improved SSH with hidden regressions 10 Nov 2024 10 Nov 2024 Over 10 years old bug finally got fixed. What changes did it bring and what undocumented regressions to expect? How to check your current install and whether it is affected?
Making sense of Proxmox bootloaders 01 Jan 2025 01 Jan 2025 What is the bootloader setup determined by and why? What is the role of the Proxmox boot tool? Explore the quirks behind the approach of supporting everything.
Passwordless SSH can lock you out 23 Sep 2024 21 Jan 2025 Not so intuitive cascade of events may lead to inability to SSH connect to a node with otherwise healthy networking setup due to inaccessible keys location.
Proxmox VE nag removal, manually 17 Aug 2024 23 Nov 2024 Brief look at what exactly brings up the dreaded notice regarding no valid subscription. Eliminate bad UX that no user of free software should need to endure.
Proxmox VE nag removal, scripted 13 Dec 2024 13 Dec 2024 Automate subscription notice suppression to avoid manually intervention during periods of active UI development. No risky scripts with obscure regular expressions that might corrupt the system in the future.
Rescue or backup entire host 06 Jan 2025 06 Jan 2025 Access PVE host root filesystem when booting off Proxmox installer ISO. A non-intuitive case of ZFS install not supported by regular Live Debian. Fast full host backup (no guests) demonstration resulting in 1G archive that is sent out over SSH. This will allow for flexible redeployment in a follow-up guide. No proprietary products involved, just regular Debian tooling.
Restore entire host from backup 10 Jan 2025 10 Jan 2025 Restore a full root filesystem of a backed up Proxmox node - use case with ZFS as an example, but can be appropriately adjusted for other systems. Approach without obscure tools. Simple tar, sgdisk and chroot. A follow-up to the previous post on backing up the entire root filesystem offline from a rescue boot.
Some lesser known quorum options 01 Dec 2024 01 Dec 2024 When considering a Quorum Device for small clusters, be aware of other valid alternatives that were taken off the list only due to High Availability stack concerns.
Taking advantage of ZFS on root 20 Jan 2025 24 Jan 2025 A look at limited support of ZFS by Proxmox VE stock install. A primer on ZFS basics insofar ZFS as a root filesystem setups - snapshots and clones, with examples. Preparation for ZFS bootloader install with offline backups all-in-one guide.
The 'no-subscription' repository 26 Dec 2024 28 Dec 2024 What exactly do you get from the non-subscriber and freely available package repository? And what are the differences to the one meant for public testing only. Almost none.
The pmxcfs mountpoint of /etc/pve 08 Dec 2024 08 Dec 2024 Understand the setup of virtual filesystem that holds cluster-wide configurations and has a not-so-usual behaviour - unlike any other regular filesystem.
The Proxmox cluster filesystem build 30 Nov 2024 30 Nov 2024 The bespoke filesystem that is the heart of Proxmox stack compiles from its sources in C. Necessary when changing hardcoded defaults or debugging unexplained quirks.
The Proxmox cluster probe 29 Nov 2024 29 Nov 2024 Experimental setup that can in fact serve as a probe to the health of a cluster. Unlike e.g. Quorum Device, it mimics an actual full fledged node without the hardware or architecture requirements.
The Proxmox Corosync fallacy 16 Nov 2024 08 Dec 2024 Distinguish the role of Corosync in Proxmox clusters from the rest of the stack and appreciate the actual reasons behind unexpected reboots or failed quorums.
The Proxmox time bomb watchdog 18 Sep 2024 21 Nov 2024 The unexpected reboot you have encountered might have had nothing to do with any hardware problem. Details on specific Proxmox watchdog setup missing from official documentation.
Upgrades and repositories 24 Dec 2024 24 Dec 2024 Set up necessary APT repositories upon fresh Proxmox VE install without any subscription license. Explainer on apt, apt-get, upgrade, dist-upgrade and full-upgrade.
Verbose boot with GRUB 08 Oct 2024 25 Jan 2025 Most PVE boots are entirely quiet. Avoid issues with troubleshooting non-booting system later by setting verbose boots. If you are already in trouble, there is a remedy as well.
WARNING: Setting locale failed 27 Nov 2024 27 Nov 2024 Common Perl warning during upgrades regarding locale settings lies in AcceptEnv directive of SSH config. A better default for any Proxmox VE install, or any Debian-based server in fact.
Why Proxmox offer full feature set for free 28 Dec 2024 28 Dec 2024 Everything has its cost. Running off repositories that only went through limited internal testing takes its toll on the user. Be aware of the implications.
Why Proxmox VE shreds your SSDs 03 Nov 2024 02 Jan 2025 Quantify the idle writes of every single Proxmox node that contribute to premature failure of some SSDs despite their high declared endurance.
ZFSBootMenu setup for Proxmox VE 20 Jan 2025 24 Jan 2025 A complete feature-set bootloader for ZFS on root install. It allows booting off multiple datasets, selecting kernels, creating snapshots and clones, rollbacks and much more - as much as a rescue system would.