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很惭愧，就做了一点微小的工作

Dash

TipsForAOSPGPU

May 7, 2022
Technology

Translation mode:

# emulator -gpu host -qemu -cpu host

In adb shell :  
# dumpsys | grep -i opengl                                                                                                                                                                       
GLES: Google (AMD), Android Emulator OpenGL ES Translator (AMD Radeon RX 5700 (navi10, LLVM 14.0.0, DRM 3.35, 5.4.0-107-generic)), OpenGL ES 2.0 (4.6 (Core Profile) Mesa 22.2.0-devel (git-5e84335 2022-04-22 focal-oibaf-ppa))

generic_x86_64:/ # ls -l -h /dev/graphics/fb0       
crw-rw---- 1 root graphics 29,   0 2022-05-07 10:37 /dev/graphics/fb0

更改为virtio级别:

emulator感觉比较老了，需要换成cuttlefish来试验

InstallationOfBlissOSInVirtManager

May 6, 2022
Technology

Create the partition:

/images/2022_05_06_11_45_13_693x190.jpg

Use GPT? (no):

/images/2022_05_06_11_46_38_848x444.jpg

Choose partition:

/images/2022_05_06_11_47_44_717x180.jpg

ext4 format:

/images/2022_05_06_11_47_58_542x153.jpg

Make sure:

/images/2022_05_06_11_48_12_636x197.jpg

Install bootloader:

/images/2022_05_06_11_48_29_488x154.jpg

read/write:

/images/2022_05_06_11_48_46_570x160.jpg

Reboot:

/images/2022_05_06_11_50_04_481x249.jpg

AutoPingOpenWRT

Apr 24, 2022
Technology

坐标广州，家里申请的公网IP地址如果隔段时间不使用的话会被回收，每次回收后都要打电话弄回来，如何自动的让公网IP不被回收呢，就需要每次从外部Ping或者Get某个服务。下面是实现步骤。

前置条件

Call 10000, 人工服务，要求光猫上绑定公网IP,理由是家里装监控需要用到。

光猫设置

光猫上设置端口映射，如12222端口映射到某台OpenWRT的22端口.

OpenWRT设备设置

OpenWRT的dropbear设置ssh key:

cd /root/.ssh
dropbearkey -t rsa -f ~/.ssh/id_rsa
dropbearkey -y -f ~/.ssh/id_rsa | grep "^ssh-rsa " >> authorized_keys

拷贝authorized_keys到远端vps的authorized_keys文件中，由此实现无密码登陆。

撰写无码验证脚本

撰写/overlay/remote.sh文件如下:

#!/bin/sh
pIP=`wget -qO - http://icanhazip.com`
ssh -i /root/.ssh/id_rsa -p2xxxx root@1x.xx.xx.xx "ssh -p12222 -o StrictHostKeyChecking=no root@$pIP 'date'| tee /root/log.txt"

其中1x.xx.xx.xx为远端vps地址, 2xxxx为远端vps的ssh端口。

# chmod 777 /overlay/remote.sh

OpenWRT crontab

编辑crontab任务如下:

# crontab -e
@hourly /overlay/remote.sh

结论

由此实现了OpenWRT路由器上发起的每一个小时通过远程vps联会自己的公网地址上暴露的IP端口，由此可以保证公网IP永不过期.

WorkingTipsOnx11spice

Apr 19, 2022
Technology

Installation Steps

Install some necessary packages for building:

$ sudo apt-get install -y build-essential autoconf xutils-dev libtool libgtk-3-dev libspice-server-dev build-essential
$ apt-cache search xcb | awk {'print $1'} | xargs -I % sudo apt-get install -y %
$ ./autogen.sh
$ ./configure --prefix=/usr
$ make && sudo make install

Configuration

Copy the configuration file into the system configuration folder:

$ sudo cp -r /usr/etc/xdg/x11spice /etc/xdg/
$ sudo vim /etc/xdg/x11spice/x11spice.conf 
...
listen=5900
disable-ticketing=true
allow-control=true
hide=true
display=:0
...

Login to the x session and run with:

$ x11spice

View via:

remote-viewer spice://192.168.xx.xx:5900 --spice-debug

xserver-xspice

Install via:

# apt install xserver-xspice ubuntu-desktop

Start a screen session via:

$ sudo Xspice --password 123456 :0

In other session:

$ DISPLAY=:0 gnome-session
OR
$ DISPLAY=:0 mate-session

view via:

remote-viewer spice://192.168.xx.xx:5900 --spice-debug

RunAVDInCentOS76Docker

Mar 1, 2022
Technology

步骤：

# docker pull centos:7.6.1810

挂载iso并映射到一个新的容器实例, 先更改其仓库配置以全部使用离线仓库:

dash@lucky:~$ sudo mount CentOS-7-x86_64-DVD-1810.iso  /mnt
mount: /mnt: WARNING: device write-protected, mounted read-only.
dash@lucky:~$ sudo docker run -it --name buildavd  -v /mnt:/mnt centos:7.6.1810 /bin/bash
[root@3c49cf47c327 /]# ls /mnt
CentOS_BuildTag  EULA  LiveOS    RPM-GPG-KEY-CentOS-7          TRANS.TBL  isolinux
EFI              GPL   Packages  RPM-GPG-KEY-CentOS-Testing-7  images     repodata
[root@3c49cf47c327 /]# mkdir /etc/yum.repos.d/back
[root@3c49cf47c327 /]# mv /etc/yum.repos.d/* /etc/yum.repos.d/back/
mv: cannot move '/etc/yum.repos.d/back' to a subdirectory of itself, '/etc/yum.repos.d/back/back'

拷贝本地仓库定义文件至容器:

# vim local.repo
[LocalRepo]
name=LocalRepository
baseurl=file:///mnt
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
# sudo docker cp local.repo buildavd:/etc/yum.repos.d/

进入容器安装必要的包:

[root@3c49cf47c327 /]#  yum groupinstall "X Window System" -y
[root@3c49cf47c327 /]# yum install -y gnome-terminal net-tools java-1.8.0-openjdk tmux celt051 librdkafka
[root@3c49cf47c327 /]# yum -y install vim sudo wget which net-tools bzip2 numpy mailcap firefox
[root@3c49cf47c327 /]# yum -y install xorg-x11-fonts* xulrunner
[root@3c49cf47c327 /]# yum -y groups install "Fonts"

使用epel仓库安装icewm:

[root@3c49cf47c327 /]# wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
[root@3c49cf47c327 /]# yum install -y icewm
[root@3c49cf47c327 /]# yum -y install nss_wrapper gettext
[root@3c49cf47c327 /]# yum erase -y *power* *screensaver*
[root@3c49cf47c327 /]# mv /etc/yum.repos.d/epel.repo /etc/yum.repos.d/back/

安装openssh相关包:

[root@3c49cf47c327 /]# yum install -y openssh-server openssh-clients

从sourceforge下载tigervnc包(https://sourceforge.net/projects/tigervnc/files/stable/1.10.1/el7/RPMS/), 这里选择1.10.1版本，以保证参数可以直接传递， 1.11版本后的tigervnc有较大改变，不推荐使用:

[root@3c49cf47c327 tigervnc110]# ls
tigervnc-1.10.1-4.el7.x86_64.rpm        tigervnc-license-1.10.1-4.el7.noarch.rpm  tigervnc-server-minimal-1.10.1-4.el7.x86_64.rpm
tigervnc-icons-1.10.1-4.el7.noarch.rpm  tigervnc-server-1.10.1-4.el7.x86_64.rpm
[root@3c49cf47c327 tigervnc110]# yum install *.rpm

安装novnc相关包:

[root@3c49cf47c327 ]# NO_VNC_HOME=/headless/noVNC
[root@3c49cf47c327 ]# mkdir -p $NO_VNC_HOME/utils/websockify
[root@3c49cf47c327 ]# wget -qO- https://github.com/novnc/noVNC/archive/v1.0.0.tar.gz | tar xz --strip 1 -C $NO_VNC_HOME
[root@3c49cf47c327 ]# ls /headless/noVNC/
LICENSE.txt  README.md  app  core  docs  karma.conf.js  package.json  po  tests  utils  vendor  vnc.html  vnc_lite.html
[root@3c49cf47c327 ]# wget -qO- https://github.com/novnc/websockify/archive/v0.6.1.tar.gz | tar xz --strip 1 -C $NO_VNC_HOME/utils/websockify
[root@3c49cf47c327 ]# wget -qO- http://209.141.35.192/v0.6.1.tar.gz | tar xz --strip 1 -C $NO_VNC_HOME/utils/websockify
[root@3c49cf47c327 ]# chmod +x -v $NO_VNC_HOME/utils/*.sh
mode of '/headless/noVNC/utils/launch.sh' retained as 0775 (rwxrwxr-x)
[root@3c49cf47c327 ]# ln -s $NO_VNC_HOME/vnc_lite.html $NO_VNC_HOME/index.html

(选做)更换/usr/local/目录，这里是因为我们的框架所依赖的库都放在了这个目录下:

[root@3c49cf47c327 ]# mv /usr/local/ /usr/local.back

-------------------------
主机上:   
sudo docker cp /workspace/local/ buildavd:/usr/
然后回到容器中检查
-------------------------

[root@3c49cf47c327 ]# du -hs /usr/local
486M	/usr/local
[root@3c49cf47c327 ]# ls /usr/local
bin  etc  games  include  lib  lib64  libexec  sbin  share  src

主机上提交我们对容器的更改并构建中间制品:

$ sudo docker commit buildavd runavd:latest
sha256:ad3c78f39bce2e8ff7492c09cacde9c9f8f5041de6878e92f4423b3d1ba943d4
$ sudo docker images | grep runavd
runavd                           latest                                       ad3c78f39bce   28 seconds ago   2.25GB

克隆仓库并构建最终制品:

# git clone  https://github.com/purplepalmdash/runavd.git
# cd runavd
# sudo docker build -t runemu .
# sudo docker images | grep runemu
runemu                           latest                                       1b7b0f283bf0   About a minute ago   2.25GB

映射avd镜像目录至容器中并运行:

$ sudo docker run -d --privileged -p 5903:5901 -p 6903:6901 -e VNC_PW=xxxxxx  --user 0  -v /home/dash/Code/android-9:/home/avd runemu:latest
$ sudo docker ps | grep 5903
4fcd1fd2bccc   runemu:latest           "/dockerstartup/vnc_…"   7 minutes ago       Up 7 minutes       0.0.0.0:5903->5901/tcp, :::5903->5901/tcp, 0.0.0.0:6903->6901/tcp, :::6903->6901/tcp   elated_curie

迁移/运行

导出镜像并传输到别的机器上:

# sudo docker save -o runemu.tar runemu:latest
# scp ./runemu.tar xxx@xxx.xxx.xx.xxx:~
# scp -r /home/dash/Code/android-9/ xxx@xxx.xxx.xxx.xxx:~
在对端机器上:  
$ sudo docker load<runemu.tar

运行时icewm失败，需要切换到另个轻量级桌面:

[root@3c49cf47c327 ~]# mv /etc/yum.repos.d/back/epel.repo /etc/yum.repos.d
[root@3c49cf47c327 ~]# yum -y -x gnome-keyring --skip-broken groups install "Xfce"
[root@3c49cf47c327 ~]# mv /etc/yum.repos.d/epel.repo /etc/yum.repos.d/back/

commit并重新编译:

$ sudo docker commit buildavd runavdxfce:latest
$ sudo docker build -f Dockerfile.centos.xfce.vnc -t runemuxfce4:latest .

替换镜像为xfce4的镜像，则可以访问.

运行镜像:

$ docker run -d --privileged -p 15901:5901 -p 16901:6901 -e VNC_PW=yiersansi --user -0 -v /root/android-9:/home/avd runemuxfce4:latest

窗口如下:

/images/2022_03_02_16_41_17_855x639.jpg

在打开的终端里, 开启实例，使能上网:

$ cd /home/avd
$ source env_setup.sh
$ android create avd --name test_liutao_9 --target android-28 --abi x86_64 --device "Nexus 4" --skin 720x1280
$ LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib emulator -avd  test_liutao_9  -verbose -show-kernel -no-snapshot -no-window -cores 4 -memory 4096 -writable-system  -partition-size 65536 -port 5654 -gpu swiftshader_indirect -qemu -cpu host -vnc :50
$ vncviewer localhost:5950
$ adb shell
ip route add default via 192.168.232.1 dev wlan0
ip rule add pref 2 from all lookup default
ip rule add from all lookup main pref 30000

结果:

/images/2022_03_02_16_44_32_1170x957.jpg