resize2fs: Permission denied to resize filesystem

扩展系统空间失败 resize2fs: Permission denied to resize filesystem

Ubuntu 20.04.5 LTS ubuntu ttyS0
ubuntu login: root
Password:
Welcome to Ubuntu 20.04.5 LTS (GNU/Linux 4.14.87 aarch64)

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  Last login: Tue Feb 21 14:28:40 CST 2023 on ttyS0
  root@ubuntu:~# sudo growpart /dev/mmcblk2 1
  NOCHANGE: partition 1 is size 62331871. it cannot be grown
  root@ubuntu:~# sudo resize2fs /dev/mmcblk2p1
  resize2fs 1.45.5 (07-Jan-2020)
  Filesystem at /dev/mmcblk2p1 is mounted on /media/sdcard1; on-line resizing required
  old_desc_blocks = 1, new_desc_blocks = 2
  resize2fs: Permission denied to resize filesystem
  root@ubuntu:~# df -h
  Filesystem Size Used Avail Use% Mounted on
  /dev/root 9.9G 8.9G 1.1G 90% /
  devtmpfs 1.6G 0 1.6G 0% /dev
  tmpfs 2.0G 0 2.0G 0% /dev/shm
  tmpfs 394M 1.2M 393M 1% /run
  tmpfs 5.0M 0 5.0M 0% /run/lock
  tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup
  tmpfs 394M 0 394M 0% /run/user/0
  root@ubuntu:~#