acrn-hypervisor/misc/packaging/100_ACRN

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#!/bin/bash
#* Copyright (c) 2020-2022 Intel Corporation.
# postinst script for acrn kernel
set -e
if [ -f /usr/lib/grub/grub-mkconfig_lib ]; then
. /usr/lib/grub/grub-mkconfig_lib
LX=linux16
elif [ -f /usr/lib/grub/update-grub_lib ]; then
. /usr/lib/grub/update-grub_lib
LX=linux
else
# no grub file, so we notify and exit gracefully
echo "Cannot find grub config file, exiting." >&2
exit 0
fi
filename="/etc/grub.d/40_custom"
menu=$(grep ACRN_deb_multiboot2 ${filename}) || true
type=$(lsblk -l |awk '$NF == "/" {print $1}')
pattern='^/dev/.* UUID="([^"]+)".* PARTUUID="([^"]+)"'
while IFS= read -r line; do
if [[ $line =~ $pattern ]]; then
uuid="${BASH_REMATCH[1]}"
partuuid="${BASH_REMATCH[2]}"
fi
done < <(blkid |grep ext4 |grep ${type})
if ls /boot/vmlinuz*acrn-service-vm* 1> /dev/null 2>&1;then
service_vm_kernel=$(ls -tr /boot/vmlinuz-*acrn-service-vm* | tail -1)
else
service_vm_kernel=$(ls /boot/vmlinuz-* | tail -1)
fi
if [ -z "$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 '/Linux_bzImage/d' ${filename} || true
sed -i '/multiboot2 \/boot/a\module2 '$service_vm_kernel' Linux_bzImage' ${filename}
sync