mkdir -p /boot
[ -f /boot/kernel.img ] || mount -t vfat -o rw,noatime "/dev/$partdev" /boot
cp -af "$UPGRADE_BACKUP" "/boot/$BACKUP_FILE"
- tar -C / -zxvf "$UPGRADE_BACKUP" boot/config.txt
+ tar -C / -zxvf "$UPGRADE_BACKUP" boot/cmdline.txt boot/config.txt
sync
- unmount /boot
+ umount /boot
fi
}