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Diskless Linux boot using ZFS, iSCSI and PXE

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Why This Matters

This article highlights a novel approach to booting Linux remotely via PXE and iSCSI, eliminating the need for local storage and simplifying multi-boot setups on gaming PCs. It underscores the growing importance of network-based boot solutions for improved flexibility, maintenance, and avoiding common issues like UEFI reconfiguration and USB drive management, offering benefits for both developers and consumers seeking streamlined system management.

Key Takeaways

I wanted to test out the new Unsloth models for Qwen3.6 and Gemma4 on my gaming PC. llama.cpp on Windows is tedious to compile, and I have littered my Windows installation with too many toolchains already. Python venvs, Mingw, Cuda, UCRT64 & WSL to name a few. Windows still does not feel developer friendly to me. I think I’m ok with it being a frontend for Steam’s Big Picture mode.

and on my gaming PC. on Windows is tedious to compile, and I have littered my Windows installation with too many toolchains already. Python venvs, Mingw, Cuda, UCRT64 & WSL to name a few. Windows still does not feel developer friendly to me. I think I’m ok with it being a frontend for Steam’s mode. I didn’t want to disturb my Windows setup that I use for gaming. Windows has a nasty habit of breaking GRUB on updates. UEFI fixes that to some extent, but it’s a pain to maintain the UEFI entries manually and change them every time the kernel updates. One of the best benefits of using the method described here is that GRUB is also on the remote drive.

I have a couple of NVME drives in the PC, both contain a few games that I play frequently. I didn’t want to get into the hassle of repartitioning everything that the boot loader works with both Linux & Windows.

Sure I can use a USB drive and in the past I have done so, but I tend to misplace my USB drives everywhere and when I urgently need one, I tend to pick the USB that’s readily available e.g. for some FedEx printing or as backup drive for photos when on vacation. I end up wiping the Linux USBs more often than not. I already have a NAS, so why not use remote boot ?

I always wanted to know how PXE worked over iSCSI.

Installing Debian on a network drive will indeed be noticeably slower than a native install. Since I’m going to use some portion of my local NVMe drive to store & load the models, I didn’t really care about the OS performance as I have enough RAM to run everything smoothly once the OS has booted up. I won’t be using this for browsing stuff using Firefox.

A single Debian 13 based server is used for Netboot.xyz , tftpd , iSCSI Target & ZFS ZVol. My Proxmox install works perfectly fine for this. I used my Asus Router with the Merlin firmware for DNSMasq .

The post is broken down into the following sections:

Install & configure Netboot.xyz #

I’m using my Proxmox host to export my iSCSI targets. Install the required packages.

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