1.1. File System Setup

Rootfs is setup as ubifs read-only. Corresponding mount command is setup in uboot as below：

$(K18DIR)/uboot/include/configs/leo_common.h

/ Extra Environment /

2. define CONFIG_EXTRA_ENV_SETTINGS \

…

"mtdargs=ubi.mtd="__stringify(CONFIG_ROOTFS_POS) ",2048 root=ubi0:rootfs rootwait " \

"rootfstype=ubifs ro loglevel=6 mem="__stringify(CONFIG_MEM_SIZE)"M\0" \

…

In order to debug system easily，sometimes we need change rootfs as R/W partition. There are two ways as below:

• Method 1，in uboot command line, run the below commands：

LEO#editenv mtdargs

LEO#ubi.mtd=9,2048 root=ubi0:rootfs rootwait rootfstype=ubifs rw loglevel=6

LEO#save

• Method 2，in adb shell, run the below command：

mount -o remount rw /