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#!/bin/bash
set -e
set -o pipefail
image=$1
[ -e "$image" ]
shift
base_dir=EFI/BOOT
source_files=("$@")
get_fsdev()
{
read < <(kpartx -rav "$image")
set -- $REPLY
if [[ $* == 'add map '*' '* ]]
then
fsdev=/dev/mapper/$3
else
echo "Error: kpartx: $REPLY" >&2
exit 1
fi
}
cleanup()
{
cd "$OLDPWD"
umount -v /mnt
dev=$(losetup -j "$image" -nO NAME)
[ "$dev" ] || exit 0
kpartx -d "$dev" || true
losetup -d "$dev" || true
}
get_fsdev
mount -v -r "$fsdev" /mnt
trap cleanup EXIT
OLDPWD=$PWD
cd /mnt/"$base_dir"
cp --no-preserve=mode -t "$OLDPWD" -- "${source_files[@]}"
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