20230815这个版本已经是9个分区了，rootfs在第9分区，我用dd命令写入到这个分区里面，但是没办法完全利用这个resize2fs命令去扩展大小是怎么回事？
执行命令报下面错误
resize2fs 1.44.5 (15-Dec-2018)
Filesystem at /dev/mmcblk0p9 is mounted on /; on-line resizing required
old_desc_blocks = 1, new_desc_blocks = 1
resize2fs: Permission denied to resize filesystem
