I installed Ubuntu on my r830xd. After the restart I have been getting an error message saying:

Booting from Ubuntu Boot failed: Ubuntu No boot device available or operating system detected.

I have gone through the install a few times. I have installed OS on the virtual drive and have tried inston the PCIe nvme to SATA. Both the virtual drive and nvme show up as options for installation. Both show the same message as above.

What should I be looking at to rectify this problem?

I just have to ask after seeing some of these crazy home data centers.

What the hell is your electric bill?? Maybe electric is just super expensive where I live, but if I had anything like some of the setup I see, it would cost more than my mortgage just in electricity.

C3850-48XS

48-port SFP+ switch.

I have several C3850’s in a stack already, and would love to be able to stack my 10Gb in the same stack.

I’ve got a Dell S4810P already (along with pallet racks of various servers and switches) and would be willing to trade if anyone has one of these laying around or pulled from a refresh.

DM me and let’s make a deal.

I have several youtube channels and I work as a videographer/editor, so i have a lot of large video files.

Currently I'm using a Seagate Desktop (10TB) with another model that I use as a clone of that drive so that the files are at least backed up somehwere else in case of drive failure.

I'm currently running out of space, and have about 80% of that 10TB used up, so i'm looking to expand this setup.

What would be an easy to set up and maintain setup, that also has redunancy options (RAID configuration i think?). I would also like some room for future expansion, and I would like to use it on apple systems mainly, so preferably format the drives to a mac compatible format.

I'm genuinely curious what you'll use all of this stuff for.

And are these basically just really souped up computers? Like towers, but with a lot more hardware in them?

I currently have my home data center set up in a spare bedroom, but we’re planning to build a 30x50 shop soon. I'm thinking of dedicating a 10x10 room in the back specifically for the data center.

For those of you with a similar setup, how are you keeping dust to a minimum? Is it as simple as putting filters in front of the rack cabinets, or are there better solutions I should consider?

Hey everyone,

I'm working on setting up a small-scale AI data center and looking for help with clustering multiple GPUs and CPUs (not just virtualization). The goal is to have them function as a unified compute cluster that we can deploy workloads on for AI inference, API deployments, and token-based usage models.

Most guides focus on virtualization, but I need something that truly pools resources together for maximum efficiency. If anyone has experience with Kubernetes, Slurm, Ray, MPI, or any other clustering solution that could help, I’d love to connect.

Has anyone here successfully done this? What stack did you use, and how did it perform? Open to discussions, collaboration, and any advice!

Thanks in advance!

See build Post -- Advice/Discussion: Running Local LLM's - Builds : r/homelab

This might be a longish post:

I've been really toying with the idea of running a local LLM or two.

idea for use cases (most of this was experimental)-

• private ChatGPT for the family and kids and keep data private. but would match gpt-4 in speed or get close to it.
  • have guardrails for the kids in the house (at least experiment with it)
  • Have AI "evolve" with our household until my kid gets into high school or longer. Toddler currently.
• have AI running and processing (6) 4k security camera feeds and with LPR and face detection, animal detection/possible identification (i live in an area with a lot of animals roaming around)
• replace siri and redirect to my own voice assistant for the house. (experimental)
• OPNsense log analysis for network security
• Photo/Media/Document organization, (i.e. themes, locations, faces, etc.)
  • goal of moving all media to a local personalized cloud and out of the actual cloud (at some point)
• Future - possible integration of AI into a smart home. (using camera's to see when i pull up and get the house ready for me as i get out.... sounds cool)
• Using a magic mirror for something (cause it sounds cool, may not be feasible)

With the Mac Studio Upgrade 512gb of unified memory seemed like it would be a pretty legit workstation for that. I got into a discussion with ChatGPT about it and went down a rabbit hole. Some of the options was to create a 2 machine (all the way up to 5) Mac Studio cluster using Exos then connecting the nodes through a 200gbe (to obviously reduce latency and increase token processing) NIC in a peer-2-peer setup, connected to thunderbolt via an eGPU enclosure.

As I said rabbit hole. I've spent a number of hours discussing and brainstorming, pricing and such.

The hang up with the Mac Studio that is making me sad is that the video processing and most of the realtime processing is is just not there yet. The unified memory and system power efficiency just doesn't make up for the raw horsepower of nvidia cuda. At least compared to having a linux server with a 4090 or 4080 and room for 1 or 2 more gpus later down the road.

Here's the Linux builds that ChatGPT came up with. Listing so that people can see.

See build Post -- Advice/Discussion: Running Local LLM's - Builds : r/homelab

I say all that to ask the community in a discussion format.

• Has anybody tried any of this? What was your experience?
• Is the Mac Studio even remotely feasible for this yet, (because MLX acceleration is not fully implemented across all models yet.)
  • Has anybody tried to process 4k video streams in realtime for AI recogonition? Does it work?

See build post-- Advice/Discussion: Running Local LLM's - Builds : r/homelab

Whew, typing all this out, man this is ambitious. I do realize i would be doing all of this 1 at a time, honing and then integrating. I can't be the only one here that's thought about this.... so my peeps what say ye.

Hey everyone,
I really appreciate the content provided in this thread! I need some input on my setup. The closet all my equipment is in stays at a around 85 degrees. My servers and disk stay with in 40C range. Do you think, long term, this is to high of a temp? I currently have an AC infinity fan sucking the hot air out of the room with an AC infinity fan on the door to pull air. Any input is greatly appreciated!

I have an APC UPS that require standard C13 cables. I am getting a decent PDU off a friend but that PDU has a C20 input.

Can I use a C19 to C14 able? No issues? Have never done it like this because PDUs I worked with were connected to bigger UPSes so no problems there

Hi! I'm looking to purchase several Dell R740 or HP DL380 G10 servers and need recommendations for reliable US-based sellers. I'm already familiar with newserverlife.com and techmikeny.com, but I've only bought from newserverlife.com so far.

Thank you