rk3368 Android9.0调试记录之系统分区调整

系统分区调整记录

Platform: RK3368
OS: Android 9.0
Kernel: 4.4.194

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1. 升级固件后开机进recovery出错

ensure_path_unmounted path is /data
Volume is already unmounted
ensure_path_unmounted path is /data
Volume is already unmounted

	F2FS-tools: mkfs.f2fs Ver: 1.10.0 (2018-01-30)

Info: Disable heap-based policy
Info: Debug level = 1
Info: Label = 
Info: Trim is enabled
	Error: Failed to open the device!
E:/sbin/mkfs.f2fs failed with status 255
E:format_volume: Failed /sbin/mkfs.f2fs on /dev/block/by-name/userdata: File exists
t /cache: Invalid argumentnand0p13): VFS: Can't find ext4 filesystemE:Failed to moun

由于调试设备用的是4GB的NandFlash,而Android9.0 SDK默认系统分区大小超过了4GB,所以需要将系统分区调整一下;不然会出现开机进recovery格式化data失败(recovery界面会出现一个Android机器人躺着,加个感叹号!!!)

1.1. 调整分区表

修改device/rockchip/rk3368/parameter.txt

-mtdparts=rk29xxnand:0x00002000@0x00004000(uboot),0x00002000@0x00006000(trust),0x00002000@0x00008000(misc),0x00008000@0x0000a000(resource),0x00010000@0x00012000(kernel),0x00002000@0x00022000(dtb),0x00002000@0x00024000(dtbo),0x00000800@0x00026000(vbmeta),0x00010000@0x00026800(boot),0x00020000@0x00036800(recovery),0x00038000@0x00056800(backup),0x00002000@0x0008e800(security),0x00100000@0x00090800(cache),0x00500000@0x00190800(system),0x00008000@0x00690800(metadata),0x00100000@0x00698800(vendor),0x00100000@0x00798800(oem),0x00000400@0x00898800(frp),-@0x00898c00(userdata:grow)
+mtdparts=rk29xxnand:0x00002000@0x00004000(uboot),0x00002000@0x00006000(trust),0x00002000@0x00008000(misc),0x00008000@0x0000a000(resource),0x00010000@0x00012000(kernel),0x00002000@0x00022000(dtb),0x00002000@0x00024000(dtbo),0x00000800@0x00026000(vbmeta),0x00010000@0x00026800(boot),0x00020000@0x00036800(recovery),0x00020000@0x00056800(backup),0x00002000@0x00076800(security),0x00020000@0x00078800(cache),0x00300000@0x00098800(system),0x00008000@0x00398800(metadata),0x00100000@0x003a0800(vendor),0x00080000@0x004a0800(oem),0x00000400@0x00520800(frp),-@0x00520c00(userdata:grow)

修改后各个分区大小如下:

分区	大小	扇区数	起始地址
uboot	4MB	0x00002000	0x00004000
trust	4MB	0x00002000	0x00006000
misc	4MB	0x00002000	0x00008000
resource	16MB	0x00008000	0x0000a000
kernel	32MB	0x00010000	0x00012000
dtb	4MB	0x00002000	0x00022000
dtbo	4MB	0x00002000	0x00024000
vbmeta	1MB	0x00000800	0x00026000
boot	32MB	0x00010000	0x00026800
recovery	64MB	0x00020000	0x00036800
backup	64MB	0x00020000	0x00056800
security	4MB	0x00002000	0x00076800
cache	64MB	0x00020000	0x00078800
system	1536MB	0x00300000	0x00098800
metadata	16MB	0x00008000	0x00398800
vendor	512MB	0x00100000	0x003a0800
oem	256MB	0x00080000	0x004a0800
frp	512KB	0x00000400	0x00520800
userdata	剩余空间	-	0x00520c00