ebf-imx6ull

Author: jiaxianhua

_posts/2020-12-30-ebf-imx6ull.md

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+---
+layout: post
+title: "LinuxLab 真板开发：arm/ebf-imx6ull"
+author: iosdevlog
+date: 2020-12-30 13:33:51 +0800
+description: ""
+cover-img: /assets/images/LinuxLab/IMX6ULL/GUI.jpg
+category: 
+tags: [LinuxLab, IMX6ULL]
+---
+
+目前是开发的初始阶段，文档也时刻在变，这里只记录部分开发测试过程，请以最新文档主准。
+
+昨天是 **ebf-imx6ul**，今天的多加了一个 `l`。
+
+## [按文档操作](https://gitee.com/tinylab/linux-lab/issues/I28KSD)
+
+```sh
+git checkout ebf
+git pull
+sed -i -e "s/nand/mmc/g" boards/arm/ebf-imx6ull/Makefile
+make BOARD=arm/ebf-imx6ull
+make kernel-build
+```
+
+使用 COM 串口
+
+```bash
+root@npi:~# passwd
+New password:
+Retype new password:
+passwd: Authentication token manipulation error
+passwd: password unchanged
+```
+
+[Getting an "Authentication token manipulation" error when trying to change my user password](/assets/images/LinuxLab/IMX6ULL/https://askubuntu.com/questions/57620/getting-an-authentication-token-manipulation-error-when-trying-to-change-my-us)
+
+```bash
+root@npi:/home/debian# pwconv
+pwconv: /etc/passwd.843: No space left on device
+pwconv: cannot lock /etc/passwd; try again later.
+```
+
+看看空间
+
+```bash
+root@npi:/home/debian# df -h
+Filesystem      Size  Used Avail Use% Mounted on
+udev             82M     0   82M   0% /dev
+tmpfs            50M  5.3M   44M  11% /run
+/dev/mmcblk1p2  6.5G  6.5G     0 100% /
+tmpfs           246M     0  246M   0% /dev/shm
+tmpfs           5.0M     0  5.0M   0% /run/lock
+tmpfs           246M     0  246M   0% /sys/fs/cgroup
+tmpfs            40K     0   40K   0% /mnt/.psplash
+tmpfs            50M     0   50M   0% /run/user/0
+tmpfs            50M     0   50M   0% /run/user/1000
+```
+
+![space](/assets/images/LinuxLab/IMX6ULL/space.png)
+
+应该是没有空间了，删除一些文件。
+
+```bash
+rm -rf /home/debian/qt-app-static/video/
+root@npi:~# sed -i -e "s/#PermitRootLogin prohibit-password/PermitRootLogin yes/g" /etc/ssh/sshd_config
+root@npi:~#
+```
+
+改完密码后，macOS 和 windows 10 下的 Docker 都找不到 `/dev/ttyUSB0` 串口。
+
+`make boot` 失败。
+
+```
+ubuntu@linux-lab:/labs/linux-lab$ make boot
+Makefile:49: WARN: Lab should **NOT** belong to 'root', please change their owne
+r in host: 'sudo chown $USER:$USER -R /path/to/cloud-lab/{*,.git}'
+Makefile:50: WARN: Cancel this warning via: 'export WARN_ON_USER=0'
+minicom -D /dev/ttyUSB0 -b 115200
+minicom: cannot open /dev/ttyUSB0: No such file or directory
+make: *** [Makefile:3651: _boot] Error 1
+```
+
+Windows 10 串口 应该是 **COM[0-9*]**，macOS 下可能是 `/dev/tty.usbserial-144410`。
+
+但是 Docker 下不知道怎么找了。
+
+我们切换到 VirtualBox。
+
+### Windows 10 下使用 VirtualBox。
+
+![virtualbox](/assets/images/LinuxLab/IMX6ULL/virtualbox.jpg)
+
+上传 zImage， dtb， modules。
+
+```bash
+make kernel-upload
+make dtb-upload
+make modules-upload
+```
+
+新 Image 启动。
+
+```bash
+make boot
+```
+
+![run](/assets/images/LinuxLab/IMX6ULL/run.jpg)
+
+@吴章金 @杨森 Windows 10 下，VituralBox Ubuntu ，终于可以了。
+
+可能是我删除了 QT 下面的一些东西，启动后画面不动了。
+
+![GUI](/assets/images/LinuxLab/IMX6ULL/GUI.jpg)
+
+触摸屏也不能工作，使用 `evtest` 测试一下。
+
+```bash
+sudo apt install evtest
+sudo evtest
+```
+
+好像没有反应。
+
+![evtest](/assets/images/LinuxLab/IMX6ULL/evtest.jpg)
+
+```
+No device specified, trying to scan all of /dev/input/event*
+Available devices:
+/dev/input/event0:	20cc000.snvs:snvs-powerkey
+/dev/input/event1:	gpio-keys
+Select the device event number [0-1]:
+```
+
+看下触摸屏内核模块有没有自动加载 `lsmod`。
+
+![lsmod](/assets/images/LinuxLab/IMX6ULL/lsmod.jpg)
+
+看下驱动 log: `dmesg|grep Goodix`。
+
+```bash
+debian@npi:~$ dmesg|grep Goodix
+[   19.968983] Goodix-TS 0-005d: i2c test failed attempt 1: -6
+[   20.066545] Goodix-TS 0-005d: i2c test failed attempt 2: -6
+[   20.159219] Goodix-TS 0-005d: I2C communication failure: -6
+```
+
+![Goodix](/assets/images/LinuxLab/IMX6ULL/Goodix.jpg)
+
+新的 qt app 还在处理一些 bug，到时直接装就行了。
+
+## 试试 macOS
+
+macOS Docker 找不到串口，试着改了一下 `.labinit`，还是不行，估计要用 `ssh` 连接了。
+
+```bash
+ubuntu@linux-lab:/labs/linux-lab$ vi .labinit
+ubuntu@linux-lab:/labs/linux-lab$ make boot
+minicom -D /dev/cu.usbserial-144410 -b 115200
+minicom: cannot open /dev/cu.usbserial-144410: No such file or directory
+make: *** [Makefile:3651: _boot] Error 1
+ubuntu@linux-lab:/labs/linux-lab$ ls /dev/cu.usbserial-144410
+ls: cannot access '/dev/cu.usbserial-144410': No such file or directory
+ubuntu@linux-lab:/labs/linux-lab$
+```
+
+切换到 `next` 分支。
+
+```bash
+git checkout next
+git pull
+```
+
+试试 login。
+
+```bash
+ubuntu@linux-lab:/labs/linux-lab$ make login
+LOG: Login via ssh protocol
+/bin/sh: 1: sshpass: not found
+make: *** [Makefile:3678: _boot] Error 127
+```
+
+下面是一些无用功。
+
+```bash
+# http://forum.ubuntu.org.cn/viewtopic.php?f=80&t=372236
+
+sudo apt-get clean
+cd /var/lib/apt
+sudo mv lists lists.old
+sudo mkdir -p lists/partial
+sudo apt-get clean
+sudo apt-get update
+
+make packages-install
+```
+
+提示没有安装 `sshpass`，改了大半天，还是觉得是网络的问题，最后用连接 `iPhone` 热点，就能正常了。
+
+所以要尽量保证环境一致：Docker 就是你。
+
+`make boot` 成功过一次，board 重新启动后就卡住不动了。
+
+后来就一直连接不上，可能还是网络问题。
+
+```bash
+ubuntu@linux-lab:/labs/linux-lab$ make boot
+LOG: Configure new kernel and dtbs images
+LOG: Rebooting via ssh
+Connection to 192.168.1.132 closed by remote host.
+LOG: Login via ssh protocol
+make: *** [Makefile:3678: _boot] Error 255
+```
+
+![login](/assets/images/LinuxLab/IMX6ULL/login.png)
+
+## 总结
+
+一句话，为了少折腾，还是 Windows -> VirtualBox -> Ubuntu -> LinuxLab。