Revision as of 15:44, 24 December 2014

APF6 eMMC layout

By default, the 4GB eMMC on APF6 board has 4 physical partitions:

Boot0

Boot1

RPMB

User Data

Name	U-Boot name	Size	Comment
boot0	mmc dev 0 1	2MBytes	U-Boot is installed on this partition
boot1	mmc dev 0 2	2MBytes	Not used
rpmb	mmc dev 0 3	512KBytes	Not used
User Data	mmc dev 0 0	remaining space	Kernel, device tree and rootfs

Offset	Comment
0
1 KB	U-Boot SPL (apf6-u-boot.spl)
69 KB	U-Boot IMG (apf6-u-boot.img)
512 KB
1024 KB	U-Boot environment
1536 KB	Redundant U-Boot environment

There are two primary partitions on the "User Data" physical partition:

Boot

Rootfs

Boot: The kernel and the device tree (inside a dtbs/ directory) are on this partition (ext4 formatted),
Rootfs: the rootfs is on this partition (ext4 formatted).

@@ Line 47: / Line 47: @@
-== User Data partition Layout ==
+== User Data partition layout ==
-There are two primary partitions on the User data physical partition.
+There are two primary partitions on the "User Data" physical partition:
+{| border="1" cellpadding="10" cellspacing="0" summary="APF6 eMMC partitions"
+|----------------
+| style="width:100px;background:green;color:white;" align="center" | Boot
+| style="width:600px;background:green;color:white;" align="center" | Rootfs
+|}
-* boot: The kernel and the device tree (inside a dtbs directory) are on this partition.
+* Boot: The kernel and the device tree (inside a ''dtbs/'' directory) are on this partition (ext4 formatted),
-* rootfs: the rootfs is on this partition
+* Rootfs: the rootfs is on this partition (ext4 formatted).
 ==Links==
 * [http://fr.slideshare.net/linaroorg/intro-to-emmc http://fr.slideshare.net/linaroorg/intro-to-emmc]