根文件系统

LDR0011A0 项目的根文件系统（rootfs）采用 Buildroot 构建，分区情况如下：

Filesystem                Size      Used Available Use% Mounted on
/dev/root                92.8M     58.7M     27.2M  68% /
devtmpfs                615.7M         0    615.7M   0% /dev
tmpfs                   744.1M         0    744.1M   0% /dev/shm
tmpfs                   744.1M      3.6M    740.6M   0% /tmp
tmpfs                   744.1M     28.0K    744.1M   0% /run
tmpfs                   744.1M         0    744.1M   0% /ftp
/dev/mmcblk0p6           92.8M      9.4M     76.4M  11% /mnt/user1
/dev/mmcblk0p7           92.8M      6.1M     79.7M   7% /mnt/user2
/dev/mmcblk0p8           34.7M    782.0K     31.2M   2% /mnt/wra
/dev/mmcblk0p9           92.8M      1.5M     84.3M   2% /mnt/log
/dev/mmcblk0p10           6.4G     29.7M      6.1G   0% /mnt/reserved