On Tue, Jan 29, 2019 at 2:59 PM Grant Taylor <gtay...@gentoo.tnetconsulting.net> wrote: > > On 01/29/2019 12:47 PM, Rich Freeman wrote: > > It couldn't. Hence the reason I said, "obviously it needs whatever > > drivers it needs, but I don't see why it would care if they are built > > -in-kernel vs in-module." > > You are missing what I'm saying. > > Even the kernel the initramfs uses MUST have support for the file > systems and devices that the initramfs uses. You can't load the module > if you can't get to where the module is or have a place to write it to > load it.
Obviously. Hence the reason I said that it shouldn't matter if the module is built in-kernel. If your root is on ext4 then the kernel needs an ext4 driver. That could be built-in, or in a module present in an initramfs, and an intramfs could support either. Dracut definitely supports either config. Dracut can mount btrfs just fine if btrfs is built in-kernel and not as a module. I'm not sure why it seems like we're talking past each other here... Now, it might not support a kernel that doesn't support module loading at all, though I'm not sure why not. If it doesn't I could see why the developers wouldn't be bothered to address the use case. -- Rich
