RK3188上运行Ubuntu系统

参照：http://androtab.info/radxa_rock/ubuntu/

注意事项：

1.不要使用163源，163的源上不带 armhf架构。

2.Sdcard使用不了可以使用u盘，这都无所谓。

3.最后启动桌面时如果出现：

xf86OpenConsole: Cannot open /dev/tty0 (No such file or directory)

Device Drivers  --->

    Character devices  ---> 

        [*] Virtual terminal

 

选上Virtual terminal。就会创建/dev/tty0。

烧写miniroot，然后设置启动变量editenv，保存saveenv以后就可以自动启动Ubuntu系统了。
boot=/dev/sda1:/ubuntu
init=/sbin/init
autoboot=1

其它：
1.CONFIG_VT can fix that “xf86OpenConsole: Cannot open /dev/tty0 (No such file or directory)”
2.CONFIG_FRAMEBUFFER_CONSOLE=y (and if you want console on screen, need "console=tty0" in CMDLINE) 
可以实现Ctrl+Alt+F1/F2...实现的虚拟终端功能。

更：

Miniroot from:  http://androtab.info/radxa_rock/sdboot/

0.解打包boot.img

Unpack boot.img 两种方法

（1）tail -c +9 boot.img | gzip -dc | cpio -i

（2）rkunpack boot.img

会生成boo.img-raw这个就是ramdisk.img

Pack boot.img 两步

（1）find . | cpio -o -H newc | gzip > ../boot-new.img

（2）rkcrc -k boot-new.img boot.img

From: http://linux-rockchip.info/mw/index.php?title=Rkutils

 

试了RK编译Android中的制作方法，失败了，暂时不知道为什么：

mkbootfs boot | minigzip > ramdisk.img && \

./mkkrnlimg ramdisk.img ramdisk-rk.img

 

1.以太网不能使用

使用root用户可以上网了，但是不能ping也不能使用network manager。

sudo service network-manager start

ROOT用户可以通过Firefox上网了。

（以后可以尝试使用最新版本的内核）

不能ping似乎是因为内核版本的问题，Android内核会有点问题。

将其添加至：/etc/rc.local 问题得以解决。

 

2.关于运行速度慢的问题

烧写到sdcard中速度比U盘快多了。

这个要仔细考虑一下是怎么回事。USB传输速度没有mmc/sd控制器输出速度快的原因吗？

 

3.Waiting up to 60 more seconds for network configuration...

解决方法：

/etc/init/failsafe.conf 注释其中的sleep n。

From: https://petermolnar.eu/linux-tech-coding/ubuntu-11-10-disable-waiting-up-to-60-more-seconds-for-network-configuration/

可以实现27秒启动。

 

3.完全运行在SDCARD中

将所有固件烧写到sdcard中：

（1）.将sdcard制作成可以启动的boot from SD card on Radxa Rock文章中的方法

（2）.使用gparted分出一个区用来放Ubuntu系统，分区前要留40MiB容量。

（3）.将Ubuntu镜像烧入到sdb1分区

   sudo fsarchiver restfs fs-ubuntu-rk3188.fsa id=0,dest=/dev/sdb1

$ sudo fsarchiver restfs fs-ubuntu-rk3188.fsa id=0,dest=/dev/sdb1

Statistics for filesystem 0

* files successfully processed:....regfiles=65939, directories=6741, symlinks=29994, hardlinks=25, specials=85

* files with errors:...............regfiles=0, directories=0, symlinks=0, hardlinks=0, specials=0

$

（4）.将环境变量设置为

   root=/dev/mmcblk0p1:/ubuntu

   （可通过设置miniroot默认的env）

 

<完>

 

4.如何备份系统

（1）制作一个脚本烧写 先分两个区，再烧写sdboot/loader/miniroot。第二个分区烧写Ubuntu系统。

（2）将所有系统制作成一个固件，通过dd命令统一烧写。

壓縮 的 備份與還原

備份 + 壓縮

dd bs=1M if=/dev/sdx | gzip > backup.gz

dd bs=4M if=/dev/sdx | gzip > backup.gz

還原 + 解壓縮

gzip -dc backup.gz | dd of=/dev/sdx # default bs=4k

gzip -dc backup.gz | dd bs=1M of=/dev/sdx

gzip -dc backup.gz | dd bs=4M of=/dev/sdx

From：http://blog.longwin.com.tw/2013/10/dd-sd-card-backup-os-2013/

5.解决非root用户不能连接网络

Disable ANDROID_PARANOID_NETWORK
config ANDROID_PARANOID_NETWORK
        bool "Only allow certain groups to create sockets"
        default y
        help
                none
make menuconfig --->
 Networking support  --->
  Networking options  ---> 
   [*] Only allow certain groups to create sockets

From: naobsd

6.Fix Audio out put problem

1. let ubuntu join "audio" group
sudo usermod -a -G audio ubuntu

2.install pavucontrol
sudo apt-get install pavucontrol

3.enable sound card output(just need do one time, I don't know why pavucontrol can't open it)
sudo amixer cset numid=1,iface=MIXER,name='Playback Path' SPK

4.play video by smplayer/ play audio(wav/mp3/etc) by vlc。
5.about sound cards
there are two cards on rk3188. there for HDMI and machine self.
(1) ROCKCHIP-SPDIF is for HDMI.
(2) RK_RK616       is for machine self. 
you should check it to the correct out device.

then you can use pavucontrol, it works fine almostly.

已知Bugs:
1.关于休眠的两个问题
（1）休眠唤醒后不能正常的登录
 Device Drivers  --->   
  Graphics support  --->  
   Console display driver support  --->
    Framebuffer Console support
暂时没有解决。

（2）深度休眠后不能唤醒
暂时没有好的方法解决。

2.音频相关不能使用
aplay ../usr/share/sounds/purple/receive.wav 可以插入声音。

播放:
aplay Windows.wav
调音量:
amixer controls
amixer cget numid=1
amixer cset numid=1 30

from: http://www.100ask.org/bbs/forum.php?mod=viewthread&tid=10566

3. about flash on ubuntu-arm
ref: Flash on the Raspberry Pi

4. WiFi/AP6330

prepare firmware, load driver, run supplicant or something

a. prepare firmware

shell@android:/ $ 
[  151.508421] Current WiFi chip is AP6330.
[  151.546786] =======================================================
[  151.553398] ==== Launching Wi-Fi driver! (Powered by Rockchip) ====
[  151.560073] =======================================================
[  151.566684] RKWIFI WiFi driver (Powered by Rockchip,Ver 4.53.WFD) init.
[  151.574037] =========== WLAN placed in POWER ON ========
[  151.579728] ANDROID-ERROR) wifi_set_power = 1
[  151.584305] rk29sdk_wifi_power: 1
[  151.839625] wifi turn on power
[  151.842710] ANDROID-ERROR) wifi_set_carddetect = 1
[  151.847545] rk29sdk_wifi_set_carddetect:1
[  151.851581] mmc1: slot status change detected(0-1)
[  152.048853] 
[  152.048857] drivers/mmc/core/core.c...2010..  ===== mmc_rescan Begin....[mmc1]
[  152.092894] 
[  152.092897] mmc_attach_sdio..808..  ===== Begin to identify card as SDIO-card. [mmc1]
[  152.164637] rk29_sdmmc_change_clk_div..1961..  newDiv=0, newCLK=24000Khz [sdio]
[  152.174937] mmc1: new high speed SDIO card at address 0001
[  152.182317] sdmmc_rescan_try_freq..1886..  ===== Initialize SDIO successfully. [mmc1]
[  152.190664] Linux Kernel SDIO/MMC Driver
[  152.195295] dhdsdio_probe : no mutex held. set lock
[  152.200296] FW_PATH = /system/etc/firmware/fw_RK903_ag.bin
[  152.200318] NVRAM_PATH = /system/etc/firmware/nvram_AP6330.txt
[  152.211956] F1 signature read @0x18000000=0x16044330
[  152.220855] DHD: dongle ram size is set to 294912(orig 294912)
[  152.227318] dhd_bus_select_firmware_name_by_chip: firmware_path=/system/etc/firmware/fw_RK903_ag.bin
[  152.238244] wl_create_event_handler thr:71e created
[  152.243488] wl_create_event_handler thr:71e started
[  152.251069] p2p0: P2P Interface Registered
[  152.255589] dhd_attach thr:71f created
[  152.259738] dhd_attach thr:71f started
[  152.263766] dhd_attach thr:721 created
[  152.267721] dhd_attach thr:721 started
[  152.271740] dhd_attach thr:722 created
[  152.275731] dhd_attach thr:722 started
[  152.280003] ANDROID-ERROR) wifi_get_mac_addr
[  152.284375] bcmsdh_set_drvdata Enter
[  152.290756] Broadcom Dongle Host Driver: register interface [wlan0] MAC: 00:90:4c:11:22:33
[  152.302942] dhdsdio_probe : the lock is released.
[  152.308524] 
[  152.308533] Dongle Host Driver, version 1.28.13.1.1 (r)
[  152.308548] Compiled in drivers/net/wireless/bcmdhd on Jul  4 2013 at 10:32:45
[  152.323169] ANDROID-ERROR) wifi_set_power = 0
[  152.327767] rk29sdk_wifi_power: 0
[  152.532149] wifi shut off power
[  152.535357] =========== WLAN placed in RESET ========
[  152.543754] Current WiFi chip is AP6330.
[  152.569982] dhd_bus_select_firmware_name_by_chip: firmware_path=/system/etc/firmware/fw_RK903_ag.bin
[  152.570098] Dongle Host Driver, version 1.28.13.1.1 (r)
[  152.570114] Compiled in drivers/net/wireless/bcmdhd on Jul  4 2013 at 10:32:45
[  152.570248] wl_android_wifi_on in
[  152.570291] ANDROID-ERROR) wifi_set_power = 1
[  152.570348] rk29sdk_wifi_power: 1
[  152.821723] wifi turn on power
[  152.821833] =========== WLAN going back to live  ========
[  152.821978] sdio_reset_comm():
[  152.822079] rk29_sdmmc_change_clk_div..1961..  newDiv=40, newCLK=300Khz [sdio]
[  152.828080] rk29_sdmmc_change_clk_div..1961..  newDiv=0, newCLK=24000Khz [sdio]
[  152.828601] dhd_bus_devreset: == WLAN ON ==
[  152.828654] dhd_bus_devreset called when dongle is not in reset
[  152.828717] Will call dhd_bus_start instead
[  152.829192] F1 signature read @0x18000000=0x16044330
[  152.839570] DHD: dongle ram size is set to 294912(orig 294912)
[  152.840620] dhd_bus_select_firmware_name_by_chip: firmware_path=/system/etc/firmware/fw_RK903_ag.bin
[  153.070471] bcmsdh_set_drvdata Enter
[  153.073200] ANDROID-ERROR) wifi_get_mac_addr
[  153.085999] CFG80211-ERROR) wl_cfg80211_attach_post : p2p0: p2p_dev_addr=02:22:f4:d9:84:1f
shell@android:/ $ 

shell@android:/system # lsmod
wlan 458451 0 - Live 0x00000000
gps 161924 0 - Live 0x00000000
vpu_service 11717 0 - Live 0x00000000
rk29_ipp 9957 0 - Live 0x00000000 (C)
mali 112485 5 - Live 0x00000000
ump 27320 15 mali, Live 0x00000000
rk30xxnand_ko 314328 0 - Live 0x00000000
shell@android:/system # 

b. load driver

off-topic:

Bootloader目前就使用RK官方的，反正是不支持传输DTS，不过也不影响学习使用DTS，内核可以自行获取屁股后边的DTS。
Mini2440上也可以使用DTS了，得选一个版本。基于3.10来实现DTS的研究。Ubuntu那个不再弄了。

1.Enable Device Tree Support
menuconfig -> Boot options -> Flattened Device Tree support
(CONFIG_USE_OF)

2.Enable
Use appended device tree blob to zImage (EXPERIMENTAL)
(CONFIG_ARM_APPENDED_DTB) 
这个宏是为了兼容那些还不支持将dts传输给内核的bootloader引导。使用CONFIG_ARM_APPENDED_DTB后你仅仅需要将dts文件紧贴在zImage后边，内核就可以自行加载dts。

3.编译make zImage dtb

From:http://www.slideshare.net/nij05/device-tree-introduction

其它资料：

1.高版本的内核Linux 3.10 on Radxa Rock，Linux Kernel 3.17。

2.从sdcard启动boot from SD card on Radxa Rock

3.RK3188启动流程Boot_Sequences