acrn-hypervisor/misc/packaging/acrn-kernel.postinst

#!/bin/bash
#* Copyright (c) 2020-2022 Intel Corporation.
# postinst script for acrn kernel
filename="/etc/grub.d/40_custom"
menu=$(grep ACRN_deb_multiboot2 ${filename}) || true
type=$(lsblk -l |awk '$NF == "/" {print $1}')
str=$(blkid |grep ${type})
uuid=$(echo $str |cut -d " " -f 2|cut -d "=" -f 2)
str=$(blkid |grep ${type})
partuuid=$(echo ${str##*PARTUUID=})
if [ -z "$menu" ]
then
cat>"${filename}"<<EOF
    #!/bin/sh
    exec tail -n +3 \$0
    menuentry 'ACRN multiboot2 ' --id ACRN_deb_multiboot2 {
            load_video
            insmod gzio
            insmod part_gpt
            insmod ext2
        search --no-floppy --fs-uuid  --set $uuid
    multiboot2 /boot/acrn.bin root=PARTUUID=$partuuid

        }

EOF
    fi

    sed -i '/module/d' ${filename} || true
    bzImage=$(cat /boot/version.txt)
    sed -i '/multiboot2 \/boot/a\module2 /boot/'${bzImage}' Linux_bzImage' ${filename}

sync
update-grub