Technical
Proxmox Windows 11 CPU Flags: host vs kvm64 vs default, what actually boots
Windows 11 needs specific CPU flags to install in Proxmox. Here's the exact list and which CPU type to use so the installer doesn't complain.
Technical
Cloned VMs from template receive the same DHCP IP address: fix the duplicate lease
Cloned VMs from template receive the same DHCP IP address because the DHCP client ID survives the clone.
Technical
Proxmox installation stuck on 3% Creating LV’s: fix the installer hang
Proxmox installer hangs at 3% 'Creating LV's'? It's usually the disk controller or a BIOS setting. Here's the step-by-step fix that actually works.
Technical
Proxmox Rename Cluster: What Actually Works
Proxmox rename cluster isn't supported, but it works if you edit corosync.conf, /etc/hosts, and the cluster filesystem on every node.
Technical
Proxmox Host Becomes Partially Unresponsive After Random Periods of Uptime: Diagnose It
Proxmox host becomes partially unresponsive after random periods of uptime? Work through memory, disk, network, and kernel causes using built-in tools and
Technical
Memory ballooning doesn’t reduce host RAM usage? Here’s why and the fix
Memory ballooning doesn't reduce host RAM usage because the guest only frees page cache when it's under pressure.
Technical
Grub hangs when loading initramfs: fix it on Proxmox from the GRUB prompt
Grub hangs when loading initramfs on Proxmox? Boot from the GRUB prompt, check your ZFS pool and kernel, and rebuild initramfs. Here's the fix.
Technical
VFIO: Firmware has requested this device have a 1:1 IOMMU mapping on Proxmox
VFIO: Firmware has requested this device have a 1:1 IOMMU mapping is usually harmless, but check your IOMMU groups before passing it through.
Technical
Proxmox Ceph Dashboard Integration: Add the Official Dashboard to PVE
Proxmox Ceph dashboard integration is easy: install ceph-mgr-dashboard, enable it, and expose it via nginx proxy manager. Here's the tested setup.
Technical
proxmox backup skips bind-mounted NAS datasets in unprivileged LXC containers
Proxmox backup captures the container rootfs, not bind-mounted TrueNAS datasets. Here's what PBS actually backs up and how to cover the gap.