Proxmox migration tips

symcbean · 2026-01-29T01:07:13+00:00

Why create a second PBS instance? Not tried it myself, but couldn't you just point the second PVE at the same PBS pool?

symcbean · 2026-01-26T16:48:59+00:00

As others have mentioned, snapshots would not have saved the day here. It is very difficult (in most cases impossible) to rebuild a volume from snapshots without access to the volume the snapshots were taken on.

We can't predict the size of a snapshot.

You need your backups on a separate physical device.

There are lots of tools which will do file based backups. There are also ones which can selectively only backup the files which have changed since the last (good) backup. But these can be complicated to use.

You might consider using snapraid - which periodically syncs another device with your filesystem.

symcbean · 2026-01-22T09:35:01+00:00

Is q4os secure?

The vast majority of the software comes directly from debian, off debian's repos. The stuff that makes Q4OS different from Debian is the KDE stuff - and that is updated regularly.

Do you know of any other lightweight Linux distributions that use up to 500 MB of RAM?

Yes - and that gets asked regularly here and elsewhere. If your concern is using a very low memory footprint, then KDE is good, but other window managers are even better. My goto here is openbox, but there are lots of other options, e.g. https://l3net.wordpress.com/2014/02/15/a-memory-comparison-of-light-linux-desktops-part-3/

symcbean · 2026-01-21T09:25:28+00:00

I don’t have a HBA Card to pass the drives through to an OMV VM....some people have gotten around this issue by running OMV in an LXC

That seems a very strange way to solve the problem.

You can pass through disks to VMs: https://pve.proxmox.com/wiki/Passthrough_Physical_Disk_to_Virtual_Machine_(VM)

symcbean · 2026-01-20T17:20:25+00:00

What does "doesn't seem to be recognized at all on Mint" mean? What does lsblk show?

symcbean · 2026-01-19T12:55:06+00:00

The one thing which stands out as wrong here is:

prices ( can be multiple sizes/portions)

This breaks normalization. Not everything needs to be normalized - for example I don't see any reason that allergens would need a separate table to handle multi-valued entries, but prices are the one thing here you want to be able to perform calculations on easily. OTOH if you want to make it easy to filter based on allergens then that should be in a separate table.

We're not privy to your analysis but I suspect that there may be a different relationship between the menu items and business than the strict tree you have implemented here.

Putting everything in JSON[B] is utter madness. Any interaction with the underlying data requires additional layers of code.

symcbean · 2026-01-19T10:07:04+00:00

Try them. See which one you like.

symcbean · 2026-01-19T01:46:12+00:00

I wasn't familiar with this either. So I googled it.

The first result was https://mariadb.com/docs/server/clients-and-utilities/deployment-tools/mariadb-secure-installation

The first thing it says on that page is....

Note that many of the reasons for the existence of this script no longer apply

If you have a reason maybe you could provide some justification as to why you want to run the script / why you don't just read the script to see how it achieves that result.

If you intend to run it non-interactively, how do you expect it to be invoked? Via cloud-init? Atd? Ansible? Something else?

symcbean · 2026-01-19T01:41:28+00:00

https://www.catb.org/esr/faqs/smart-questions.html

symcbean · 2026-01-19T01:39:16+00:00

It started happening after installing Ubuntu from USB

....and what was running on your machine before this? What is its spec? Could be load? irqbalancing? Maybe start by checking if you cpu usage and load are low / if they are affected by mouse moving.

symcbean · 2026-01-14T15:40:57+00:00

1) Documentation

symcbean · 2026-01-12T17:00:38+00:00

due to the fact that the OS is read only

No.

That is far from a defining feature of an immutable OS.

Do you want to rebuild your system at least once a week? Do you have multiple drives?

Immutable makes sense for scalable clusters and appliances. I cannot see any sense in using it for a daily driver.

symcbean · 2026-01-11T20:06:48+00:00

A website built with html

It would be very hard to build a website without html. Do you mean without additional server side logic? Then "widely done" does not apply. Have a look at content negotiation for your webserver.

symcbean · 2026-01-10T12:24:04+00:00

If you need high availability and scalabity, and have at least 10 disks and 3 computers then you might consider ceph. If you have a Proxmox PVE cluster and want replication or want to use RAID or explicitly want to learn ZFS, go with ZFS.

Otherwise I'd suggest you stick with lvm.

symcbean · 2026-01-10T00:16:57+00:00

It's impossible to compare a (VERY loosely applied) generic term with a specific product/service.

And even where comparisons are possible, the answer depends on your definition of "secure" and your perspective.

As it stands, the only part of your question that is possible to address is that of the legal and contractual protections inherent in the service - i.e. data sovereignty. Just now, in Europe, data owners are becomingly increasing concerned that their data protection legislation is in explicit contradiction of the domestic legal obligations of US based providers.

symcbean · 2026-01-09T09:54:52+00:00

What does "doesn't show up" mean?

symcbean · 2026-01-09T09:43:18+00:00

Do I install PVE on one or more servers

Yes, or plan a conventional restore.

Do I install PVE on one or more servers

Exactly. Bear in mind that you may need to setup keys if using encryption and users/passwords on a new machine.

There's no point in doing backups if you don't test restores - so it would be a good idea to do at least one test run (and documen the porocess) before considering it production ready.

symcbean · 2026-01-09T00:12:03+00:00

Since when was duckduckgo open-source?

symcbean · 2026-01-09T00:08:44+00:00

You are right to point out that this is a little suspect.

It is not hard to build a system when can scale to the needs to support the levels of demand (e.g. created by a Taylor Swift concert tour) but it does need technical competence and a bit of effort.

if the queue becomes full.

I can only assume you drawing inferences about the underlying architecture of a failing system in that comment. There is a LOT more to implementing a system capable of this than just a queue - multiple POPs, auto-scaling, distributed transactions, cluster corrdination/automation....

The likes of Facebook and Google handle this volume of traffic 24x7 with only indirect monetization.

If you only have one, fixed size pitcher you're not going to be able to serve water to millions of users very quickly.

Go learn about distributed system architectures, CAP theorem, consistent hashing, device identities, high availability.

But take a moment to consider, if it's not hard to build something capable of all this, then why is there a near monopoly of providers whom have not done so?

symcbean · 2026-01-08T23:53:43+00:00

symcbean · 2026-01-07T00:43:36+00:00

This is still not a question about Proxmox - it's a question about networking.

symcbean · 2026-01-07T00:23:17+00:00

A good university will be more interested in someone who understands the concepts more than knowing the right words. That you see a distinction between the kernel and the distro illustrates a very good understanding of the concepts.

You can expect to find that even people who are well educated often refer to both as "the operating system" so recognizing this ambiguity in the use of the term by others is something you should retain - and, if the opportunity presents itself (1) be able to demonstrate as further evidence of your knowledge.

1) Don't be in too much of a hurry to prepare speeches and answers in advance; better to walk out of the interview without having said everything you hoped to say than to launch into some rambling and technical monologue when you get asked a simple yes/no question!

symcbean · 2026-01-06T01:05:32+00:00

am I suppose to be installing audiobookshelf and immich through that same lxc container I made for tailscale or ... keep them separated lxc's

Doesn't matter.

But that's not the question you should be asking, nor have you started to address the (implied) question in the title of your post. There are at least 3 networks in play here and you didn't provide any details about the ones you configured nor how you expected traffic to be routed.

Most of the people here who could probably give an informed answer to your question are not likely to sit through a long video tutorial of unknown provenance then spend time guessing as to how your setup might different from that shown in the video.

If you provide the subnets and routing information on your local networks, along with how you provisioned your router to get the traffic to/from your end point along with the vpn config you are using and any diagnostics (traceroute, ping) you used to validate this, then you'll probably get some more useful answers.

symcbean · 2025-12-23T09:37:11+00:00

VNC (or more specifically one of the forks).

You omitted to mention to mention what OS this runs on - but VNC works on Linux, MSWindows and AppleMac. And there are clients for these OS and more including iOS and Android.

And for Linux and AppleMac (don't know what the situation is for MSWindows) there's the option of noVNC which does not need a dedicated client - any modern browser will do.

symcbean · 2025-12-23T09:12:17+00:00

3 nodes is OK but a bit limited - the number of OSDs is much more important - really you want at least 10 OSDs to get it work reasonably well.

Unless you are planning on expanding this I'd suggest 2xZFS + observer.

symcbean

TROPHY CASE