使用下载的image 用dd 命令烧写到SDCARD，然后板子从SDCARD 启动，
启动后发现系统空间很小，一些SDCARD 空间没有用上。
如何重新分区SDCARD？
下面是我们设备的信息。
IXM8 MINI
root@imx8mmevk:~# df -H
Filesystem Size Used Avail Use% Mounted on
/dev/root 1.3G 1.2G 0 100% /
devtmpfs 691M 4.1k 691M 1% /dev
tmpfs 1.1G 0 1.1G 0% /dev/shm
tmpfs 1.1G 9.0M 1.1G 1% /run
tmpfs 1.1G 0 1.1G 0% /sys/fs/cgroup
tmpfs 1.1G 0 1.1G 0% /tmp
tmpfs 1.1G 250k 1.1G 1% /var/volatile
/dev/mmcblk2p5 1.9G 1.2G 642M 65% /run/media/mmcblk2p5
/dev/mmcblk2p11 256M 51M 200M 21% /run/media/mmcblk2p11
/dev/mmcblk2p6 1.9G 1.2G 642M 65% /run/media/mmcblk2p6
/dev/mmcblk2p10 256M 51M 200M 21% /run/media/mmcblk2p10
/dev/mmcblk1p1 67M 24M 44M 36% /run/media/mmcblk1p1
tmpfs 206M 0 206M 0% /run/user/0
root@imx8mmevk:~# cat /etc/fstab
# stock fstab - you probably want to override this with a machine specific one
/dev/root / auto defaults 1 1
proc /proc proc defaults 0 0
devpts /dev/pts devpts mode=0620,gid=5 0 0
tmpfs /run tmpfs mode=0755,nodev,nosuid,strictatime 0 0
tmpfs /var/volatile tmpfs defaults 0 0
# uncomment this if your device has a SD/MMC/Transflash slot
#/dev/mmcblk0p1 /media/card auto defaults,sync,noauto 0 0
