Early networking from initramfs

Mr Green · 2019-09-21 08:09:42

Can see from wiki:

https://wiki.archlinux.org/index.php/Mk … #Using_net

That it is possible to have a network connection during early boot. Would it be possible to create a wireless connection early too?

My thinking is to get new_root mounted on a remote system...

frostschutz · 2019-09-21 08:47:47

Anything is possible in initramfs as long as you provide the dependencies (kernel modules, userspace programs, a script to set it all up etc.).

initramfs is a full blown system (if you make it so), there are no other limitations or restrictions.

Basically https://wiki.archlinux.org/index.php/Wi … figuration rolled into a mkinitcpio hook would work just fine.

The only question is whether someone has done it yet or you have to do it yourself...

https://wiki.archlinux.org/index.php/Dm … k_via_wifi https://aur.archlinux.org/packages/mkinitcpio-wifi/ suggests someone might have done it but I haven't tried it myself... good luck.

Last edited by frostschutz (2019-09-21 08:49:55)

WorMzy · 2019-09-21 09:22:45

Just an FYI: you might not want to put too much effort into achieving such a thing with mkinitcpio, since it is going to be replaced with dracut at some point.

https://lists.archlinux.org/pipermail/a … 29570.html
https://lists.archlinux.org/pipermail/a … 46778.html

Mr Green · 2019-09-21 10:28:19

Might try this out under a VM, might add those basic instructions to wiki.... Think Void uses dracut.

From mailing list:

> Without looking at dracut yet, I have a few questions:
> - Is there a description how to move from mkinitcpio to dracut?
No, not yet. But it is as simple as running dracut -H -f /boot/initramfs-linux.img, for
trying it out. I'll work later this week on a wiki page, but the good thing is, it has
plenty documentation available.

frostschutz · 2019-09-21 10:51:08

WorMzy wrote:

at some point.

I'm looking forward to it but until then, (or at least until there's a set date), I'll stick with initcpio all the same.

But yes, you can use a different, or even completely custom kernel and custom initramfs, if it suits you.

Mr Green · 2019-09-21 17:26:28

https://pasteboard.co/IysQ0Uq.png

base install ran dracut -H -f <as above> and system stops loading, read manual time ;-)

Mr Green · 2019-09-22 14:54:40

Running dracut with -M gives interesting results.

Arch Linux

#1 2019-09-21 08:09:42

Early networking from initramfs

#2 2019-09-21 08:47:47

Re: Early networking from initramfs

#3 2019-09-21 09:22:45

Re: Early networking from initramfs

#4 2019-09-21 10:28:19

Re: Early networking from initramfs

#5 2019-09-21 10:51:08

Re: Early networking from initramfs

#6 2019-09-21 17:26:28

Re: Early networking from initramfs

#7 2019-09-22 14:54:40

Re: Early networking from initramfs

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