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NixOS systemd

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NixOS ❤️ systemd179 Servers

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12 Mar 2025
@adam_neverwas:matrix.orgAdam Neverwas set their display name to Adam Neverwas.14:27:30
13 Mar 2025
@mornix:matrix.orgmornix Hi, I saw this is the place to talk about boot counting (via #330017). Is https://github.com/NixOS/nixpkgs/issues/337089 still seen as the way forward? And if so how can I help with boot counting? 01:16:26
17 Mar 2025
@antifuchs:asf.computerantifuchs well this is unpleasant: it seems that systemd-networkd is now starting after zfs filesystems get unlocked, which makes it difficult for my ssh server to get online so I can remotely enter the encryption password 13:11:46
@antifuchs:asf.computerantifuchs also, huh, did boot.initrd.systemd start setting networking.usePredictableInterfaceNames to off? I had to set up a rule for eno1 but that device isn't present, only eno1np0 and eno1np1 13:32:23
@antifuchs:asf.computerantifuchs * also, huh, did boot.initrd.systemd change interface naming schemes? I had to set up a rule for eno1 but that device isn't present, only eno1np0 and eno1np1 13:34:53
@antifuchs:asf.computerantifuchs * also, huh, did boot.initrd.systemd change interface naming schemes in nixos-unstable? I had to set up a rule for eno1 but that device isn't present, only eno1np0 and eno1np1 13:35:02
@gdamjan:spodeli.orggdamjanthat seems to be kernel dependent13:41:16
@antifuchs:asf.computerantifuchsyeah, seems so. I should make up my own names for netdevs13:52:11
@antifuchs:asf.computerantifuchsstill, what a damn trap to run into /:13:52:20
@antifuchs:asf.computerantifuchsok, here's a really annoying thing I don't know how to handle: when critical bootup things fail (or when prompting for my zfs unlock password), systemd kills and re-starts the password prompt every ~2-3 seconds, which makes it impossible to enter the password14:54:06
@antifuchs:asf.computerantifuchs(can baaarely type a 60-char password fast enough, plus the IPMI web console doesn't allow me to type that fast at all)14:55:41
@gdamjan:spodeli.orggdamjanalso sometimes a BIOS update can mangle the names (happened to me once)16:36:43
@antifuchs:asf.computerantifuchs yeah - I ended up using matchConfig.MACAddress in addition to a name glob, that seems to have fixed the issue 16:37:11
@antifuchs:asf.computerantifuchs(the "in addition to" was the key, otherwise child interfaces got the parent interface config which made things look right but behave extremely wrong) (:16:37:44
@elvishjerricco:matrix.orgElvishJerriccothose two shouldn't have any sort of ordering constraints against each other I don't think17:58:43
@elvishjerricco:matrix.orgElvishJerriccothat's.... odd17:58:49
@antifuchs:asf.computerantifuchsI think on the first one, I misread that ethernet card renaming thing as another18:02:48
@antifuchs:asf.computerantifuchs* I think on the first one, I misread that ethernet card renaming thing as another: now that networking is straightened out, I have managed to get the ssh server to start and unlock zfs through there18:03:15
@antifuchs:asf.computerantifuchsbut yeah, those repeating password prompts are really really annoying18:03:27
@antifuchs:asf.computerantifuchsit would even print "Login failed" while I was typing18:03:42
@elvishjerricco:matrix.orgElvishJerricco.... what?18:06:13
@elvishjerricco:matrix.orgElvishJerriccologin failed?18:06:16
@elvishjerricco:matrix.orgElvishJerriccothat's not a thing that happens in stage 118:06:32
@antifuchs:asf.computerantifuchssorry, I'm being unclear. this is the emergency mode password prompt. Initially, that works alright: a critical unit fails, it prompts for root password, I enter it. Then I tried starting that unit again and it entered emergency mode again, this time prompting over and over18:09:39
@antifuchs:asf.computerantifuchscould this be a Restart="on-failure"; type thing? huh18:10:17
@elvishjerricco:matrix.orgElvishJerricco antifuchs: I'm still not quite following. What unit is failing? 18:26:39
@antifuchs:asf.computerantifuchs that was my initrd ssh server, due to that network misconfiguration on my part. The ssh server has Restart="on-failure", which is what I suspect causes the password prompt to also restart 18:27:59
@antifuchs:asf.computerantifuchs(restart without a rate limit, critically)18:28:40
@elvishjerricco:matrix.orgElvishJerriccoThat doesn't sound like what ought to be happening, huh18:28:40
@antifuchs:asf.computerantifuchsyea, it's not amazing ((:18:29:10

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