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On 11/08/2020 15.38, Joonas Niilola wrote: |
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> |
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> On 8/11/20 11:36 AM, Jaco Kroon wrote: |
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>> And I've already provided you one use case where udev doesn't work well |
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>> but eudev does. I've also mentioned some historic issues I believe |
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>> should already be fixed but which did bit me in systemd-udev which was |
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>> never a problem in eudev. |
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>> |
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> Your systems seem to diverge a lot from what I'd consider as 'default'. |
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> You must already make many changes to them. |
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> |
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> Before this thread I didn't even know/remember I was using eudev. It |
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> works and there doesn't seem to be any global issues related to it. |
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> However after reading this thread I'm a bit considered about the |
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> maintenance state of it. |
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> |
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> Switched to udev. Simple as 'emerge -1 sys-fs/udev'. It works, didn't |
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> notice any difference. |
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> |
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> If musl is a problem, to my knowledge musl has its own stage images, so |
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> why can't those stages use eudev while other ones defaulting to udev? |
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For the sake of science, I've also moved one of my systems to |
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sys-fs/udev and noticed a single incompatibility. There are few ways how |
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to disable the systemd/udev predictable NIC names, one of them is to |
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boot with net.ifnames=0, another is to mask rule file that trigger the |
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rename, as described on wiki[1] |
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Long story short, on eudev it's 80-net-name-slot.rules, on udev it's |
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80-net-setup-link.rules |
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The result was that my system booted without working network, as connman |
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started to poke around Ethernet interfaces (this is ok, I had |
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blacklisted eth*, not enp*), which then resulted in switching routing to |
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Ethernet that failed to get IP from DHCP, even that WiFi had a fully |
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working Internet access, so more like connman bug. (And yes, I am aware |
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that net.ifnames=0 will work on both) |
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This however shows two things: eudev is (no longer) drop-in replacement, |
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as some interfaces changed in upstream udev, which leads to second |
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thing, we need to have migration path, because even if(!) Gentoo change |
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default (I am not a fan of this idea really), then it might lead to |
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people doing fresh installation or reinstallation, migrating their |
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configs resulting in not working systems/working in other way that |
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previous one. |
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[1] https://wiki.gentoo.org/wiki/Udev#Keep_classic_.27eth0.27_naming |
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-- Piotr. |
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