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Homelab & Vietnam

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qemu-img zeroinit LVM bug on Proxmox: tested workaround
Technical

qemu-img zeroinit LVM bug on Proxmox: tested workaround

qemu-img zeroinit on LVM thin volumes leaves data unzeroed on Proxmox. Here's the bug, how to reproduce it, and a tested workaround.

NguyenSeptember 4, 20262 min read
Debian 13 LXC await network timeout: fix the Proxmox wait logic
Technical

Debian 13 LXC await network timeout: fix the Proxmox wait logic

Debian 13 LXC await network timeout? Here's the root cause in Proxmox's wait logic and a tested workaround that gets your container up.

NguyenSeptember 4, 20262 min read
ZFS Fast Dedup Proxmox Recommendation: Tested on a Real Host
Technical

ZFS Fast Dedup Proxmox Recommendation: Tested on a Real Host

ZFS fast dedup on Proxmox: I tested it with real VMs and containers. Here's the memory and performance hit, and when it's actually worth using.

NguyenSeptember 3, 20262 min read
Debian 12 Cloud Image Search Domain Missing: Fix It in Proxmox
Technical

Debian 12 Cloud Image Search Domain Missing: Fix It in Proxmox

Debian 12 cloud images don't set a search domain by default. Here's the cloud-init fix that actually works on Proxmox.

NguyenSeptember 3, 20262 min read
Upgrade PVE 8 to 9 systemd-boot ZFS rpool UEFI: the path that works
Technical

Upgrade PVE 8 to 9 systemd-boot ZFS rpool UEFI: the path that works

Upgrade PVE 8 to 9 on systemd-boot with a ZFS rpool and UEFI. The extra steps matter, and here's the order that gets it done cleanly.

NguyenSeptember 2, 20262 min read
Need to delete local-lvm and reuse the size in Proxmox
Technical

Need to delete local-lvm and reuse the size in Proxmox

Need to delete local-lvm and reuse the size? Remove the LVM-thin pool, extend the root volume, then resize the filesystem. Here's the safe order.

NguyenSeptember 2, 20261 min read
Proxmox LXC out of memory tmpfs journald: fix the OOM kill
Technical

Proxmox LXC out of memory tmpfs journald: fix the OOM kill

journald's tmpfs usage can OOM-kill small LXC containers. Fix it by capping journald's memory with RuntimeMaxUse and SystemMaxUse in journald.conf.

NguyenSeptember 1, 20262 min read
Deploying a Proxmox VE Worker Node on an Air-Gapped Network
Technical

Deploying a Proxmox VE Worker Node on an Air-Gapped Network

Step-by-step: build an offline apt repo, transfer packages via USB, and join a PVE cluster without internet. Tested on Proxmox VE 8.

NguyenSeptember 1, 20262 min read
Can You Prevent NIC Reset During ISO/Install Start in Proxmox?
Technical

Can You Prevent NIC Reset During ISO/Install Start in Proxmox?

Yes, you can prevent the NIC reset when a Proxmox VM starts an ISO install. It's the bridge setting and a kernel module option. Here's the fix.

NguyenAugust 31, 20261 min read
Exclude Node from Migration Targets List: Proxmox Workaround
Technical

Exclude Node from Migration Targets List: Proxmox Workaround

Proxmox shows every cluster node as a migration target by default. Here's how to exclude a node from the migration targets list using the REST API and a

NguyenAugust 30, 20261 min read

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  • Technical 212
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The hardware

What these posts run on, and cheaper ways to start

Latest posts

Proxmox Cloud-Init Drive Shows as CD-ROM: Expected vs. Broken

Proxmox Cloud-Init Drive Shows as CD-ROM: Expected vs. Broken

November 9, 2026
Proxmox Hookscript Failing When It Does More Than One Thing: Fix the Execution Context

Proxmox Hookscript Failing When It Does More Than One Thing: Fix the Execution Context

November 8, 2026
Proxmox Kernel Not Updating: Check Apt Pinning and the Meta-Package

Proxmox Kernel Not Updating: Check Apt Pinning and the Meta-Package

November 8, 2026
ZFS Pool Suspended: Offline the Disk, Clear the Errors, Online It Again

ZFS Pool Suspended: Offline the Disk, Clear the Errors, Online It Again

November 7, 2026
Proxmox /access/permissions pool: Why GET Returns Wrong Permissions for Pool Members

Proxmox /access/permissions pool: Why GET Returns Wrong Permissions for Pool Members

November 7, 2026
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CapturedByNguyen

Notes on running a homelab, and on a country I left. Written by Nguyen in California.

Technical

Homelab, Proxmox, self-hosting — what broke, and what actually fixed it.

  • Proxmox Cloud-Init Drive Shows as CD-ROM: Expected vs. Broken
  • Proxmox Hookscript Failing When It Does More Than One Thing: Fix the Execution Context
  • Proxmox Kernel Not Updating: Check Apt Pinning and the Meta-Package
  • ZFS Pool Suspended: Offline the Disk, Clear the Errors, Online It Again

Personal

Vietnam, the years since, and the things worth writing down.

  • Little Saigon quận Cam có còn là thủ đô của người Việt Nam tị nạn tại Mỹ?
  • A Journey Back in Time: Revisiting My Middle School (Hai Ba Trung)
  • Tản mạn về cuộc sống (2024)
  • Dịa chỉ chợ trái cây ở Florida (Clearwater, Miami, Destin)

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