Re: [PATCH v4 02/10] rootfs: Allow to overwrite the initramfs generation cmds

["'Jan Kiszka' via isar-users" <isar-users@googlegroups.com>]

On 22.10.25 17:06, Quirin Gylstorff wrote:
> From: Quirin Gylstorff <quirin.gylstorff@siemens.com>
> 
> This is in preparation to support additional initramfs generators
> like dracut.
> 
> Signed-off-by: Quirin Gylstorff <quirin.gylstorff@siemens.com>
> ---
>  meta/classes/rootfs.bbclass | 13 ++++++++++---
>  1 file changed, 10 insertions(+), 3 deletions(-)
> 
> diff --git a/meta/classes/rootfs.bbclass b/meta/classes/rootfs.bbclass
> index 4d73bfec..b7310e0c 100644
> --- a/meta/classes/rootfs.bbclass
> +++ b/meta/classes/rootfs.bbclass
> @@ -5,7 +5,13 @@ inherit deb-dl-dir
>  
>  ROOTFS_ARCH ?= "${DISTRO_ARCH}"
>  ROOTFS_DISTRO ?= "${DISTRO}"
> +
> +def initramfs_generator_cmdline(d):
> +    return "update-initramfs -u -v -k \"$kernel_version\""
> +
>  ROOTFS_PACKAGES ?= ""
> +ROOTFS_INITRAMFS_GENERATOR_CMD = "${@ d.getVar('ROOTFS_INITRAMFS_GENERATOR_CMDLINE').split()[0]}"
> +ROOTFS_INITRAMFS_GENERATOR_CMDLINE = "${@ initramfs_generator_cmdline(d)}"
>  ROOTFS_BASE_DISTRO ?= "${BASE_DISTRO}"
>  
>  # Features of the rootfs creation:
> @@ -254,7 +260,7 @@ rootfs_disable_initrd_generation() {
>      set -e
>  
>      mkdir -p "${ROOTFSDIR}${ROOTFS_STUBS_DIR}"
> -    ln -s /usr/bin/true ${ROOTFSDIR}${ROOTFS_STUBS_DIR}/update-initramfs
> +    ln -s /usr/bin/true ${ROOTFSDIR}${ROOTFS_STUBS_DIR}/${ROOTFS_INITRAMFS_GENERATOR_CMD}
>  
>      mkdir -p '${ROOTFSDIR}/etc/apt/apt.conf.d'
>      echo 'DPkg::Path ${ROOTFS_STUBS_DIR}:/usr/sbin:/usr/bin:/sbin:/bin;' \
> @@ -577,12 +583,13 @@ rootfs_generate_initramfs() {
>              echo "Total number of modules: $mods_total"
>              echo "Generating initrd for kernel version: $kernel_version"
>              sudo -E chroot "${ROOTFSDIR}" sh -c ' \
> -                update-initramfs -u -v -k "$kernel_version"'
> +                ${ROOTFS_INITRAMFS_GENERATOR_CMDLINE};'
>          done
>          if [ -n "${INITRD_DEPLOY_FILE}" ]; then
>              if [ -f "${ROOTFSDIR}/initrd.img" ]; then
>                  # debian (mkinitramfs)
> -                cp ${ROOTFSDIR}/initrd.img ${DEPLOYDIR}/${INITRD_DEPLOY_FILE}
> +                sudo cp ${ROOTFSDIR}/initrd.img ${DEPLOYDIR}/${INITRD_DEPLOY_FILE}
> +                sudo chown $(id -u):$(id -g) ${DEPLOYDIR}/${INITRD_DEPLOY_FILE}

Do we need more sudo? bwrap?

And why do we need this here now?

Jan

>              else
>                  # ubuntu (dracut)
>                  cp ${ROOTFSDIR}/boot/initrd.img ${DEPLOYDIR}/${INITRD_DEPLOY_FILE}

-- 
Siemens AG, Foundational Technologies
Linux Expert Center

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