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Ahhh, yes, super-duper helpful (again), thanks @fabian (!).

Great details @fabian - thank you! @dietmar - typically a directive like "Simply compare the config file before and after" means (for me) to run a diff(1) or cmp(1) on config file(s). Can you share where I can find the config file(s) for a (k)vm/template in a zfs-based install? I can then, per...

@chintzy_butters - thanks for your timely replies. I'm not trying to learn (in this thread) the external benefits of creating a template; there's many, many reference for that info. We need not repeat it here. As such, if I'm reading it correctly, none of the above info tells me what the `qm...

`qm template`: what does it _do_? what makes a template different from a (k)vm? Details I see references to how running `qm template [vm_number]` creates a template that makes future (linked or full) cloning better, more-efficient. But... what does `qm template` do to the (k)vm? (A bit of...

Thanks. I'll put this another way: if my team were to write some of our own PVE utilities/software (which we do quite often in these contexts) to supplant some part of the web GUI and/or the cmdline commands, would there be an PVE-specific functionality that is _not_ provided by the REST API...

For the point at hand: 1. workaround for my current problem I might be able to figure out "remove the cloudinit disk," but "add it again on both the original and the cloned VM" is not clear to me. What is "it" -- the VM, and if so which one (the original or cloned... or whatever)? or the...

Very helpful. Follow-on questions: 1. In PVE: is there any function/feature/operation that a command (from the "command line terminal") can do that the REST API (either via one REST method/call or many in combination) can not? In other words: does the PVE REST API provide all primitive...

Great, thanks @mira. 1. updating my (non-production) server with patches a. is there a build-from-source (if needed?) full procedure somewhere I can read? (I'm assuming this is needed to apply patches.) The referenced patch shows changes to files in /PVE (I think?), a directory which is not...

To be clear: my team is happy to subscribe to paid support. (ie: we will not "hold it against" Proxmox if they do not offer the full, corporate-tech-support assistance here, in this community-only forum, without payment. It makes business-model sense.) We're just looking for an answer, either...

Okay, thanks for your timely reply. I'm not sure exactly what the following quote means to me (I'm not yet versed enough in PVE) or how to solve the above problem. I'm not clear on how it's a bug. A few more details/pointers might help. eg: what is the expected, proper behavior? If I buy a...

Thanks @fabian. What/where are your recommend REST API docs?

Hunting for `images` dirs does not seem to yield much. :-/ $ pveversion pve-manager/6.2-11/22fb4983 (running kernel: 5.4.60-1-pve) $ $ cd / $ pwd / $ find . -iname images ./var/lib/vz/images ./usr/share/pve-manager/touch/resources/themes/images ./usr/share/pve-manager/images...

Why are my above kvm image formats 'raw' and not 'qcow2'? I thought qemu/kvm images would default to their more-featureful (_maybe_?) copy-on-write formats? (See rant above. Yet another thing that does not make sense and feels like it takes longer than it should to properly understand.)

[DISCLAIMER: rant follows.] So..... how do I figure this out? I do not want to sound disrespectful. Or non-appreciative. For $0, I love what I _hope_ I can get from ProxmoxVE. Very promising. But I'm an experienced (several decades) techie in unix, windows, linux, macOS, VMS server and...

Does the web-gui (6.2-11) produce some sort of "command log" for the (presumed?) commands it runs upon receiving a command from the web-based user? I'm a command-line oriented sysadmin, and I'd eventually like to be able to manage all things without the web gui, or at least using it minimally.

I'm seeking suggestions for debugging the following. After running a "clone from snapshot" in the web gui rev 6.2-11, I receiving the following output: TASK ERROR: clone failed: activate_volume 'pve/snap_vm-199-cloudinit_baseline_1' error: Failed to find logical volume...

FIXED: I was indeed specifying the incorrect interface name in the problematic rule. Fixing this (changing from eth0 to ens18 in our case) solved the problem. Thanks @spirit ! Similar fix discussion...

It is discussing iptables only inside a guest, kvm-based VM, yes. Hence why I posted the primary inquiry to reddit.com/r/linuxadmin, and only a secondary inquiry here. And yes, I agree it does not appear to be related specifically to proxmox (because it's not a proxmox firewall)... ...except...

2020-09-22: SOLVED: #5 2020-09-21: Anybody here (at forums.proxmox.com) have a take on this? https://www.reddit.com/r/linuxadmin/comments/ixeky1/ubuntu_kvm_vps_iptables_ctstate/

Nice. For the record: excerpt from the following found at end of this post: excerpt: