| arraybolt3[m] | Eickmeyer: I just did an install test of Ubuntu Studio focal.5, manual partitioning, with /boot on ext4 and root on btrfs. The swapfile dependency is failing, probably because of copy-on-write. Is this expected? | 20:30 |
|---|---|---|
| Eickmeyer[m] | arraybolt3: That's possible. btrfs was never a supported test case for Focal, especially without a dedicated swap partition. | 20:31 |
| arraybolt3[m] | I guess I'll do it with Ubuntu Studio focal.4 and see what happens (hopefully it will fail there too). | 20:32 |
| arraybolt3[m] | The system still boots and works just fine, so 👍️ just no swap (and modern Ubuntu Studio doesn't even make a swap so who cares) | 20:33 |
| Eickmeyer[m] | Yeah, I'm not even sure why Studio doesn't make a swap file without a partition. Does Lubuntu? | 20:34 |
| arraybolt3[m] | Lubuntu does make a 512 MB swapfile, and gives an options to either create or skip creating that swapfile. Ubuntu Studio does not offer such an option and just skips swap. (On 22.04) | 20:34 |
| arraybolt3[m] | (On Lubuntu Focal, Lubuntu doesn't make a swapfile at all.) | 20:35 |
| Eickmeyer[m] | That might need to get fixed. | 20:35 |
| arraybolt3[m] | In Jammy/Kinetic? | 20:35 |
| Eickmeyer[m] | Yes. | 20:35 |
| arraybolt3[m] | I remember saying something about it before, but I believe we decided to say "it's not a bug it's a feature" since having a swapfile on Ubuntu Studio could result in xruns during music recording. | 20:36 |
| Eickmeyer[m] | It can, for sure, but if you have enough RAM that's not a big deal. | 20:37 |
| arraybolt3[m] | Right, but if you have enough RAM then you don't need swap. | 20:37 |
| Eickmeyer[m] | One can always run "swapoff" and be set. | 20:37 |
| arraybolt3[m] | I figure better to have it configured for good music recording OOTB rather than rely on the user knowing how to run swapoff. | 20:37 |
| Eickmeyer[m] | I thought it was because I had 64GB of ram it just wasn't making one. | 20:37 |
| arraybolt3[m] | Nope, just default. | 20:37 |
| arraybolt3[m] | But if a user has a system that benefits from a swapfile, that's probably a good indicator that their system isn't powerful enough to use Ubuntu Studio properly. | 20:38 |
| Eickmeyer[m] | Honestly, we haven't had any complaints. | 20:38 |
| arraybolt3[m] | (I mean, I guess if someone only did art on the system then it might need a swapfile yet benefit from Studio, but Studio is usually geared towards audio AFAICT.) | 20:38 |
| arraybolt3[m] | I'll regression check just because that's how point releases work, but I don't see any need to change anything swap-related in modern Ubuntu Studio. | 20:39 |
| Eickmeyer[m] | arraybolt3[m]: Usually, but we do want a well-rounded system for audio, video, graphics, and photography. | 20:40 |
| arraybolt3[m] | Meh, I guess that makes sense. Really you're the team lead. Maybe we can figure out how to make it say "Make swapfile (for graphics and art on lower-end hardware)" and "No swap (for audio on higher end hardware)"? | 20:41 |
| OvenWerks | One OOM can ruin your whole day if the kernel decides the app to remove from memeory is the project you have not saved yet... or even the DE | 20:43 |
| * OvenWerks has had that happen | 20:44 | |
| OvenWerks | Eickmeyer[m]: I had not noticed swap not being added because I do manual partitions and add swap if I want it... or in most cases there are a few swap partitions already hanging around which the kernel tends to just grab. | 20:47 |
| Eickmeyer | OvenWerks: As it should. I'm very surprised that nobody has raised any issues related to memory. | 20:47 |
| OvenWerks | now that it is mentioned, my fstab does not have a swap listed... htop shows one in use anyway. | 20:48 |
| OvenWerks | another related thing is that the install really wanted me to create a boot partition but did not complain about no swap. I declined the boot partition creation anyway :) | 20:50 |
| * OvenWerks doesn't know how long he will continue to get away with that... maybe till he gets another MB | 20:52 | |
| Eickmeyer[m] | OvenWerks: You should just be able to point it to the EFI partition... it needs that for UEFI boot, but it won't format it. | 20:52 |
| Eickmeyer[m] | It's mostly just to set it up for fstab. | 20:53 |
| OvenWerks | just one partition for 22.04 | 20:53 |
| OvenWerks | To be fair, I was booting to 20.04 as default and didn't want to mess that up. When I switched to booting to 22.04 by default I just did a grub-install. | 21:04 |
| arraybolt3[m] | Alright, regression tested swap failure on 20.04.5 when root is on btrfs - it is not a regression. | 23:24 |
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