Proxmox VE

• Proxmox Storage: Ceph vs ZFS — The Decision Tree Nobody Shows You
• Proxmox “pve-apt-hook failed”: why upgrades get blocked and how to unblock safely
• VMware ESXi licensing in 2026: what changed, what it costs, and the best alternatives (Proxmox included)
• Proxmox RBD “error opening”: auth/keyring mistakes and fixes
• Replace vCenter with Proxmox: what you gain, what you lose, and workarounds that actually work
• Proxmox Swap Keeps Growing: What’s Wrong with Memory Pressure and How to Stabilize It
• Proxmox VM won’t start after changing CPU type: recovery steps that work
• Proxmox systemd “Dependency failed”: Find the Service That Breaks Boot
• Proxmox NFS timeouts: mount options that improve stability
• Proxmox TASK ERROR: Where to Read Logs and Find the Root Cause Fast
• Proxmox OOM-killer events: why it kills processes and how to set sane limits
• Proxmox console won’t open (SPICE/noVNC): where it breaks and how to fix
• Proxmox PCI Passthrough Fails: IOMMU Groups and the Classic Traps
• Proxmox “could not resolve host”: DNS/IPv6/proxy quick root-cause workflow
• Ceph performance on Proxmox is slow: 10 checks that actually find the bottleneck
• Proxmox “qemu-img: Could not create”: permissions, paths, and filesystem fixes that actually work
• Proxmox backups to PBS fail: common chunk/space errors and what to do
• Proxmox “pmxcfs is not mounted”: why /etc/pve is empty and how to recover
• Proxmox Time Drift: NTP Issues That Break TLS/PBS and How to Fix
• Proxmox Won’t Boot After a Kernel Update: Roll Back via GRUB the Right Way
• Proxmox “failed to start pve-ha-lrm”: why HA won’t start and what to check
• Proxmox Web UI Won’t Open on Port 8006: Restart pveproxy and Get Access Back
• Proxmox “dpkg was interrupted”: Fix Broken Packages Without Reinstalling
• Proxmox LXC Bind-Mount Permission Denied: UID/GID, Unprivileged Containers, and the Fix That Actually Works
• Proxmox USB Passthrough Disconnects: Power, Autosuspend, and Stability Fixes
• Proxmox “pve-cluster.service failed”: How to Bring the Cluster Stack Back Up
• Proxmox local-lvm at 100%: find what ate your thin pool and fix it
• Proxmox Clustering and HA: How It Works, What Breaks, and How to Design It Properly
• Proxmox LXC Won’t Start: Reading cgroups and AppArmor Errors Like a SRE
• Proxmox Stuck Tasks: How to Clean Up Hung Jobs and Processes Safely
• Proxmox “Login Failed” When the Web UI Loads: Top Causes and Fixes
• Proxmox “cannot allocate memory”: ballooning, overcommit, and how to tune it
• ESXi Alternatives for SMB: Proxmox vs XCP-ng vs Hyper-V
• Proxmox “VM is locked (backup/snapshot)”: how to remove a lock safely
• Proxmox Security Checklist: 2FA, RBAC, Firewall, Updates, and Safe Remote Access
• Proxmox CIFS “Permission denied”: fix credentials, SMB dialect, and mount options
• Proxmox pveproxy.service failed: 7 common causes and the right fix order
• Proxmox replication failed: why it breaks and how to recover
• Proxmox snapshot stuck: safely cleaning LVM-thin leftovers
• Proxmox “QEMU exited with code 1”: read the error, find the real cause
• Proxmox Windows VM is slow: 8 settings (disk/cache/IO thread/drivers) that matter
• Proxmox “VM disk vanished”: storage vs config, and how to diagnose it
• Proxmox “Connection refused” on 8006 after updates: what to check first
• Fix Proxmox “IOMMU not enabled” for PCI Passthrough (VT-d/AMD-Vi) Safely
• ESXi to Proxmox V2V Conversion: Best Methods and Pitfalls
• Proxmox “Not a Bootable Disk”: BIOS/UEFI Boot Order, Disk Flags, and a Fast Recovery Path
• Proxmox Ceph “mon down/out of quorum”: restoring monitors and quorum without panic
• Proxmox Ceph OSD Down: Disk vs Network vs Service — Fast Identification
• Proxmox live migration fails: what to verify for network, CPU flags, and storage
• Proxmox vzdump backup failed: 10 real causes and how to check in order