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move_config() {
local partdev
. /lib/upgrade/common.sh
if export_bootdevice && export_partdevice partdev 1; then
mkdir -p /boot
if mount -o ro,noatime "/dev/$partdev" /boot; then
if [ -f "/boot/$BACKUP_FILE" ]; then
mount /boot -o remount,rw,noatime
mv -f "/boot/$BACKUP_FILE" /
fi
umount /boot
rm -fR /boot
fi
fi
}
boot_hook_add preinit_mount_root move_config
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