Comment # 2 on bug 1206181 from Ivan Ivanov

Hm, still did not work for me:

MODULES=dp83867
ISO=${HOME}/iso/openSUSE-Tumbleweed-XFCE-Live-aarch64-Snapshot20221202-Media.iso

rm -fr my.dud

mkdud --create my.dud --dist sle15 --install repo \
    tumbleweed-rpms/kernel-default-6.0.11-0.gb0c11df.aarch64.rpm \
    tumbleweed-rpms/kernel-default-devel-6.0.11-0.gb0c11df.aarch64.rpm \
   
tumbleweed-rpms/kernel-default-livepatch-devel-6.0.11-0.gb0c11df.aarch64.rpm
===  Update #1  ===
  [SUSE Linux Enterprise 15 (aarch64)]
    Name:
      kernel-default-6.0.11-0.gb0c11df.aarch64    Tue Dec  6 12:23:38 2022
      kernel-default-devel-6.0.11-0.gb0c11df.aarch64    Tue Dec  6 12:23:38
2022
      kernel-default-livepatch-devel-6.0.11-0.gb0c11df.aarch64    Tue Dec  6
12:23:38 2022
    ID:
      bc75c908-5a05-4630-91ac-bc2a37c47ab4
    Packages:
      kernel-default-6.0.11-0.gb0c11df.aarch64.rpm  (Tue Dec  6 12:23:38 2022)
      kernel-default-devel-6.0.11-0.gb0c11df.aarch64.rpm  (Tue Dec  6 12:23:38
2022)
      kernel-default-livepatch-devel-6.0.11-0.gb0c11df.aarch64.rpm  (Tue Dec  6
12:23:38 2022)
      - install methods: repo (repo priority 50)
    Scripts:
      update.pre, update.post2

sudo ${HOME}/src/mksusecd/mksusecd --verbose --create my.iso --rebuild-initrd
--initrd my.dud \
    --kernel tumbleweed-rpms/kernel-default-6.0.11-0.gb0c11df.aarch64.rpm \
             tumbleweed-rpms/kernel-default-devel-6.0.11-0.gb0c11df.aarch64.rpm
\
            
tumbleweed-rpms/kernel-default-livepatch-devel-6.0.11-0.gb0c11df.aarch64.rpm 
    --modules ${MODULES} -- ${ISO}
assuming repo-md sources
transient signing key created, keyid = 2A139B3D3AFF30EB
signing key added to image and initrd
oops, incompatible initrd layout