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Stage 1 systemd

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systemd in NixOs's stage 1, replacing the current bash tooling https://github.com/NixOS/nixpkgs/projects/5123 Servers

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13 Feb 2023
@elvishjerricco:matrix.org@elvishjerricco:matrix.org So I'm kinda frustrated, even though that will realistically solve the issue as far as they're concerned (since they seem to think literally only / and /usr will ever be mounted in initrd) 07:11:46
@lily:lily.flowers@lily:lily.flowers
In reply to @elvishjerricco:matrix.org
Lily Foster: FYI apparently I didn't notice that they replaced my PR with one that has the problems I mentioned: https://github.com/systemd/systemd/pull/26367
Yeah I saw :(
11:58:30
@lily:lily.flowers@lily:lily.flowers
In reply to @elvishjerricco:matrix.org
So I'm kinda frustrated, even though that will realistically solve the issue as far as they're concerned (since they seem to think literally only / and /usr will ever be mounted in initrd)
I don't even understand why something that just hides the problem rather than fixes it is preferred, since it was never articulated in the thread what is undesirable about a sync point or why the hack is better. Yu just sorta opened a new PR without waiting for your feedback
12:00:10
14 Feb 2023
@k900:0upti.meK900Bump: https://github.com/NixOS/nixpkgs/pull/21050518:01:36
@k900:0upti.meK900Any reason I shouldn't just merge this?18:01:40
@k900:0upti.meK900It's been running fine on all of my machines18:01:47
@k900:0upti.meK900(and I'm cleaning up my pile of cherry-picks)18:01:55
@elvishjerricco:matrix.org@elvishjerricco:matrix.org K900: I still think it should be based on chroot and realpath but I don't care enough to say it shouldn't be merged 18:08:19
@k900:0upti.meK900I'd rather run all of this after the chroot entirely tbh18:09:58
@k900:0upti.meK900But I'm not sure there's a good way to do that18:10:06
@k900:0upti.meK900Outside of wrapping systemd18:10:18
@k900:0upti.meK900Which is just ew18:10:24
@k900:0upti.meK900I'm still hoping to see the day where we don't need to do that on nixos-wsl18:11:29
@lily:lily.flowers@lily:lily.flowers ElvishJerricco: I've been thinking about submitting a PR to systemd to canonicalize source for bind mounts (specifically so that they can be canonicalized from /sysroot in initrd). It would prevent us needing to artificially prepend /sysroot to only bind mounts from the NixOS side when generating the fstab for systemd-based initrd, and based on the old systemd PR I linked, they seem receptive to merging that functionality (or at least they did a few years ago). Thoughts? 18:40:02
@elvishjerricco:matrix.org@elvishjerricco:matrix.orgwell the awkward thing is that bind mounts aren't the only problem18:41:26
@lily:lily.flowers@lily:lily.flowersYeah, was worried you were going to say that. We only handle it for bind mounts in NixOS though18:41:49
@elvishjerricco:matrix.org@elvishjerricco:matrix.orgoverlayfs, for instance, has the directory options that would need the same treatment18:41:44
@lily:lily.flowers@lily:lily.flowersI mean theoretically I could just make it do that for any mount if the source is a non-/dev and non-/sys path18:42:13

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