On Thu, Dec 7, 2023 at 3:04 AM Ross Burton <ross.bur...@arm.com> wrote: > > On 6 Dec 2023, at 21:47, mattwood2000 via lists.yoctoproject.org > <mattwood2000=gmail....@lists.yoctoproject.org> wrote: > > > > Hi, > > > > I'm trying to create a custom initramfs to handle some things before > > switching root to my actual filesystem. I followed the docs and have been > > able to use INITRAMFS_IMAGE = "custom-image" and INITRAMFS_IMAGE_BUNDLE = > > "1" to generate a zImage for my ARM platform. > > > > The custom-image.bb recipe is based on the core-image-minimal-initramfs > > recipe and is in a meta-layer that has another image recipe for the actual > > eMMC filesystem image. Both the eMMC image and initramfs bundle are > > created. > > > > In custom-image.bb, PACKAGE_INSTALL includes INITRAMFS_SCRIPTS which seem > > to be geared towards live-image things but that's not what I want. > > > > The image boots but hangs waiting for removable media. I figured out that > > /init is not pointing to systemd but the live-image script from > > recipes-core/initrdscripts. > > The problem is most likely that your kernel is missing eMMC drivers. They’re > most likely built as kernel modules, but you didn’t install the modules into > the initramfs. One easy fix is to just add kernel-modules to your initramfs.
Right, this is how we tame bbb to include some USB drivers into kernel proper so that we can read the USB stick in initramfs https://github.com/YoeDistro/yoe-distro/blob/master/sources/meta-yoe/dynamic-layers/meta-ti/recipes-kernel/linux/files/updater.cfg > > I do have some tweaks to the initramfs images to post, but they’re not quite > ready yet. You can see the WIP in poky-contrib:ross/genericarm64. > > Ross > >
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