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sys-kernel/coreos-kernel: Decompress the minimal initrd kernel modules #3437

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merged 1 commit into from
Oct 30, 2025
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sys-kernel/coreos-kernel: Decompress the minimal initrd kernel modules #3437

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5 changes: 3 additions & 2 deletions ...iner/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-6.12.54.ebuild
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Original file line number Diff line number Diff line change
Expand Up @@ -108,15 +108,16 @@ src_compile() {
ln -s usr/lib64 lib || die
ln -s usr/lib64 lib64 || die
ln -s lib64 usr/lib || die
mkdir -p lib/modules/"${KV_FULL}"/ || die
# Instead from ESYSROOT we can also copy kernel modules from the dracut pre-selection
cp "${S}"/build/bootengine/usr/lib/modules/"${KV_FULL}"/modules.* lib/modules/"${KV_FULL}"/ || die
mkdir -p lib/modprobe.d/ || die
cp "${S}"/build/bootengine/lib/modprobe.d/* lib/modprobe.d/ || die
# Only include modules related to mounting /usr and for interacting with the emergency console
pushd "${S}/build/bootengine/usr/lib/modules/${KV_FULL}" || die
find kernel/drivers/{ata,block,hid,hv,input/serio,mmc,nvme,pci,scsi,usb} kernel/fs/{btrfs,overlayfs,squashfs} kernel/security/keys -name "*.ko.*" -printf "%f\0" | DRACUT_NO_XATTR=1 xargs --null "${BROOT}"/usr/lib/dracut/dracut-install --destrootdir "${S}"/build/minimal --kerneldir . --sysrootdir "${S}"/build/bootengine/ --firmwaredirs "${S}"/build/bootengine/usr/lib/firmware --module dm-verity dm-mod virtio_console || die
popd || die
# Double compression only makes the image bigger and slower
find . -name "*.ko.xz" -exec unxz {} + || die
depmod -a -b . "${KV_FULL}" || die
echo '$MODALIAS=.* 0:0 660 @/sbin/modprobe "$MODALIAS"' > ./etc/mdev.conf || die
# We can't use busybox's modprobe because it doesn't support the globs in module.alias, breaking module loading
DRACUT_NO_XATTR=1 "${BROOT}"/usr/lib/dracut/dracut-install --destrootdir . --sysrootdir "${ESYSROOT}" --ldd /bin/veritysetup /bin/dmsetup /bin/busybox /sbin/modprobe || die
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