Rock/partitions - Revision history

Hipboi at 07:24, 27 December 2013

2013-12-27T07:24:29Z

Hipboi at 10:24, 20 December 2013

2013-12-20T10:24:11Z

Hipboi at 10:23, 20 December 2013

2013-12-20T10:23:09Z

Hipboi at 06:47, 4 December 2013

2013-12-04T06:47:02Z

Hipboi at 06:46, 4 December 2013

2013-12-04T06:46:26Z

Hipboi at 06:40, 4 December 2013

2013-12-04T06:40:30Z

Hipboi at 05:56, 4 December 2013

2013-12-04T05:56:08Z

Hipboi at 05:54, 4 December 2013

2013-12-04T05:54:27Z

Hipboi at 04:45, 4 December 2013

2013-12-04T04:45:20Z

Hipboi at 04:32, 4 December 2013

2013-12-04T04:32:08Z

@@ Line 7: / Line 7: @@
 The partition is decided by the mtd parts in cmd line bootloader passed to the kernel, which is like this:
 <pre>
-CMDLINE:console=ttyFIQ0 androidboot.console=ttyFIQ0 root=LABEL=linuxroot rw rootfstype=ext4 init=/sbin/init initrd=0x62000000,0x00800000 mtdparts=rk29xxnand:0x00002000@0x00002000(misc),0x00008000@0x00004000(kernel),0x00008000@0x00008000(boot),0x00010000@0x00010000(recovery),0x00020000@0x00020000(backup),0x00040000@0x00040000(cache),0x00200000@0x00080000(userdata),0x00002000@0x00280000(kpanic),0x00100000@0x00282000(system),0x00300000@0x00382000(linuxroot),-@0x00682000(user)
+CMDLINE:console=ttyFIQ0 androidboot.console=ttyFIQ0 root=LABEL=linuxroot rw rootfstype=ext4 init=/sbin/init initrd=0x62000000,0x00800000 mtdparts=rk29xxnand:0x00002000@0x00002000(misc),0x00004000@0x00004000(kernel),0x00008000@0x00008000(boot),0x00010000@0x00010000(recovery),0x00020000@0x00020000(backup),0x00040000@0x00040000(cache),0x00200000@0x00080000(userdata),0x00002000@0x00280000(kpanic),0x00100000@0x00282000(system),0x00300000@0x00382000(linuxroot),-@0x00682000(user)
 </pre>

← Older revision		Revision as of 10:24, 20 December 2013
Line 78:		Line 78:
	\|}		\|}

−	*'''''In previous android, the ramdisk(mounted as /) is in a separate partition, so we need two partitions, one for the kernel and the other for ~~rootfs~~, but the newer android ~~put the rootfs in ramdisk and~~ pack together ~~with~~ the kernel into boot.img, so only one partition is needed '''''	+	*'''''In previous android, the ramdisk(mounted as /) is in a separate partition, so we need two partitions, one for the kernel and the other for ramdisk, but the newer android pack together the kernel and the ramdisk into one single boot.img, so only one partition is needed '''''

← Older revision		Revision as of 10:23, 20 December 2013
Line 78:		Line 78:
	\|}		\|}

−	*'''''In previous android, the ~~rootfs~~ in a separate partition, so we need two partitions, one for the kernel and the other for rootfs, but the newer android put the rootfs in ramdisk and pack together with the kernel into boot.img, so only one partition is needed '''''	+	*'''''In previous android, the ramdisk(mounted as /) is in a separate partition, so we need two partitions, one for the kernel and the other for rootfs, but the newer android put the rootfs in ramdisk and pack together with the kernel into boot.img, so only one partition is needed '''''

@@ Line 70: / Line 70: @@
 | 1536M
 | linuxroot
-| For the linux rootfs
+| For the Linux rootfs
 |-
 | 0x0000d0400000-

@@ Line 29: / Line 29: @@
 | 16M
 | kernel
-| Linux kernel, not used, keep it for compatibility*
+| Obsolete Linux kernel partition, not used, keep it for compatibility*
 |-
 | 0x000001000000-0x000002000000
@@ Line 77: / Line 77: @@
 | Android internal flash as sdcard for storage
 |}

@@ Line 12: / Line 12: @@
 The partition must be 4M aligned due to the page size of [[rock/nand]] flash.
-The layout of the dual boot image is as below:
+The layout of the [[rock/dual boot |dual boot image]] is as below:
 {| class="wikitable" border="1"

@@ Line 29: / Line 29: @@
 | 16M
 | kernel
-| Linux kernel if used*
+| Linux kernel, not used, keep it for compatibility*
 |-
 | 0x000001000000-0x000002000000
@@ Line 44: / Line 44: @@
 | 64M
 | backup
-| Backup partition, not used on radxa rock, keep it for compatibility.
+| Backup partition, not used on radxa rock, keep it for compatibility
 |-
 | 0x000008000000-0x000010000000

@@ Line 3: / Line 3: @@
 __TOC__
 This page describe the partition layout of nand flash on radxa rock.
 The partition is decided by the mtd parts in cmd line bootloader passed to the kernel, which is like this:
@@ Line 10: / Line 10: @@
 </pre>
-The layout of the system is described as below:
+The partition must be 4M aligned due to the page size of [[rock/nand]] flash.
 {| class="wikitable" border="1"
@@ Line 20: / Line 22: @@
 |-
 | 0x000000400000-0x000000800000
+| 4M
 | misc
+| Android misc partition
 |-
 | 0x000000800000-0x000001800000
+| 16M
 | kernel
+| Linux kernel if used*
 |-
 | 0x000001000000-0x000002000000
+| 16M
 | boot
+| Android boot.img(kernel+ramdisk)
 |-
 | 0x000002000000-0x000004000000
+| 32M
 | recovery
+| Android recovery/ Linux kernel + ramdisk
 |-
 | 0x000004000000-0x000008000000
+| 64M
 | backup
+| Backup partition, not used on radxa rock, keep it for compatibility.
 |-
 | 0x000008000000-0x000010000000
+| 128M
 | cache
+| Android /cache partition
 |-
 | 0x000010000000-0x000050000000
+| 1024M
 | userdata
+| Android /data partition
 |-
 | 0x000050000000-0x000050400000
+| 4M
 | kpanic
+| For kernel panic dump
 |-
 | 0x000050400000-0x000070400000
+| 512M
 | system
+| Android /system partition
 |-
 | 0x000070400000-0x0000d0400000
+| 1536M
 | linuxroot
+| For the linux rootfs
 |-
-| 0x0000d0400000-0x0000eb200000
+| 0x0000d0400000-
+| -
 | user
 |}

← Older revision		Revision as of 04:45, 4 December 2013
Line 9:		Line 9:
	CMDLINE:console=ttyFIQ0 androidboot.console=ttyFIQ0 root=LABEL=linuxroot rw rootfstype=ext4 init=/sbin/init initrd=0x62000000,0x00800000 mtdparts=rk29xxnand:0x00002000@0x00002000(misc),0x00008000@0x00004000(kernel),0x00008000@0x00008000(boot),0x00010000@0x00010000(recovery),0x00020000@0x00020000(backup),0x00040000@0x00040000(cache),0x00200000@0x00080000(userdata),0x00002000@0x00280000(kpanic),0x00100000@0x00282000(system),0x00300000@0x00382000(linuxroot),-@0x00682000(user)		CMDLINE:console=ttyFIQ0 androidboot.console=ttyFIQ0 root=LABEL=linuxroot rw rootfstype=ext4 init=/sbin/init initrd=0x62000000,0x00800000 mtdparts=rk29xxnand:0x00002000@0x00002000(misc),0x00008000@0x00004000(kernel),0x00008000@0x00008000(boot),0x00010000@0x00010000(recovery),0x00020000@0x00020000(backup),0x00040000@0x00040000(cache),0x00200000@0x00080000(userdata),0x00002000@0x00280000(kpanic),0x00100000@0x00282000(system),0x00300000@0x00382000(linuxroot),-@0x00682000(user)
	</pre>		</pre>
		+
		+	The layout of the system is described as below:
		+
		+	{\| class="wikitable" border="1"
		+	\|-
		+	! Address
		+	! Size
		+	! Name
		+	! Description
		+	\|-
		+	\| 0x000000400000-0x000000800000
		+	\|
		+	\| misc
		+	\|
		+	\|-
		+	\| 0x000000800000-0x000001800000
		+	\|
		+	\| kernel
		+	\|
		+	\|-
		+	\| 0x000001000000-0x000002000000
		+	\|
		+	\| boot
		+	\|
		+	\|-
		+	\| 0x000002000000-0x000004000000
		+	\|
		+	\| recovery
		+	\|
		+	\|-
		+	\| 0x000004000000-0x000008000000
		+	\|
		+	\| backup
		+	\|
		+	\|-
		+	\| 0x000008000000-0x000010000000
		+	\|
		+	\| cache
		+	\|
		+	\|-
		+	\| 0x000010000000-0x000050000000
		+	\|
		+	\| userdata
		+	\|
		+	\|-
		+	\| 0x000050000000-0x000050400000
		+	\|
		+	\| kpanic
		+	\|
		+
		+	\|-
		+	\| 0x000050400000-0x000070400000
		+	\|
		+	\| system
		+	\|
		+	\|-
		+	\| 0x000070400000-0x0000d0400000
		+	\|
		+	\| linuxroot
		+	\|
		+	\|-
		+	\| 0x0000d0400000-0x0000eb200000
		+	\|
		+	\| user
		+	\|}

← Older revision		Revision as of 04:32, 4 December 2013
Line 3:		Line 3:
	__TOC__		__TOC__

−	This page describe the partition layout of nand flash on radxa rock.	+	This page describe the partition layout of nand flash on radxa rock.
		+
		+	The partition is decided by the mtd parts in cmd line bootloader passed to the kernel, which is like this:
		+	<pre>
		+	CMDLINE:console=ttyFIQ0 androidboot.console=ttyFIQ0 root=LABEL=linuxroot rw rootfstype=ext4 init=/sbin/init initrd=0x62000000,0x00800000 mtdparts=rk29xxnand:0x00002000@0x00002000(misc),0x00008000@0x00004000(kernel),0x00008000@0x00008000(boot),0x00010000@0x00010000(recovery),0x00020000@0x00020000(backup),0x00040000@0x00040000(cache),0x00200000@0x00080000(userdata),0x00002000@0x00280000(kpanic),0x00100000@0x00282000(system),0x00300000@0x00382000(linuxroot),-@0x00682000(user)
		+	</pre>