使用如下方式安装：
$ cd ~ $ wget http://developer.download.nvidia.com/devzone/devcenter/mobile/jetpack_l4t/013/linux-x64/cuda-repo-l4t-8-0-local_8.0.84-1_arm64.deb $ sudo dpkg -i cuda-repo-l4t-8-0-local_8.0.84-1_arm64.deb $ sudo apt-get update $ sudo apt-get install cuda-toolkit-8-0
至于如何获取最新的NVIDIA TX2上使用的CUDA 8.0版本的下载地址，请访问Jetson Download Center，下载目前最新的JetPack 3.1。执行之后在存储目录下的repository.json中找到最新的下载链接即可。当然也可以让JetPack 3.1自动下载完成最新的CUDA 8.0版本到指定目录。
首先编辑安装源
$ sudo vim /etc/apt/sources.list
找到如下内容
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution. deb http://ports.ubuntu.com/ubuntu-ports/ xenial main restricted deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial main restricted ## Major bug fix updates produced after the final release of the ## distribution. deb http://ports.ubuntu.com/ubuntu-ports/ xenial-updates main restricted deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial-updates main restricted ## Uncomment the following two lines to add software from the 'universe' ## repository. ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team. Also, please note that software in universe WILL NOT receive any ## review or updates from the Ubuntu security team. # deb http://ports.ubuntu.com/ubuntu-ports/ xenial universe # deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial universe # deb http://ports.ubuntu.com/ubuntu-ports/ xenial-updates universe # deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial-updates universe ## N.B. software from this repository may not have been tested as ## extensively as that contained in the main release, although it includes ## newer versions of some applications which may provide useful features. ## Also, please note that software in backports WILL NOT receive any review ## or updates from the Ubuntu security team. # deb http://ports.ubuntu.com/ubuntu-ports/ xenial-backports main restricted # deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial-backports main restricted deb http://ports.ubuntu.com/ubuntu-ports/ xenial-security main restricted deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial-security main restricted # deb http://ports.ubuntu.com/ubuntu-ports/ xenial-security universe # deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial-security universe # deb http://ports.ubuntu.com/ubuntu-ports/ xenial-security multiverse # deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial-security multiverse
开启universe源，修改为：
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution. deb http://ports.ubuntu.com/ubuntu-ports/ xenial main restricted deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial main restricted ## Major bug fix updates produced after the final release of the ## distribution. deb http://ports.ubuntu.com/ubuntu-ports/ xenial-updates main restricted deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial-updates main restricted ## Uncomment the following two lines to add software from the 'universe' ## repository. ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team. Also, please note that software in universe WILL NOT receive any ## review or updates from the Ubuntu security team. deb http://ports.ubuntu.com/ubuntu-ports/ xenial universe deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial universe deb http://ports.ubuntu.com/ubuntu-ports/ xenial-updates universe deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial-updates universe ## N.B. software from this repository may not have been tested as ## extensively as that contained in the main release, although it includes ## newer versions of some applications which may provide useful features. ## Also, please note that software in backports WILL NOT receive any review ## or updates from the Ubuntu security team. # deb http://ports.ubuntu.com/ubuntu-ports/ xenial-backports main restricted # deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial-backports main restricted deb http://ports.ubuntu.com/ubuntu-ports/ xenial-security main restricted deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial-security main restricted # deb http://ports.ubuntu.com/ubuntu-ports/ xenial-security universe # deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial-security universe # deb http://ports.ubuntu.com/ubuntu-ports/ xenial-security multiverse # deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial-security multiverse
然后更新源
$ sudo apt-get update
然后执行如下安装脚本：
#!/bin/bash sudo apt-get update sudo apt-get upgrade -y --force-yes sudo apt-get autoremove -y # 必须先安装boost ,否则，整个安装过程会失败，应该是apt的BUG sudo apt-get -y install libboost-all-dev UBUNTU_VERSION=`lsb_release -c -s` ROS_DISTRO=hydro if [ $UBUNTU_VERSION = trusty ] || [ $UBUNTU_VERSION = saucy ] ; then ROS_DISTRO=indigo elif [ $UBUNTU_VERSION = xenial ] ; then ROS_DISTRO=kinetic fi ROS_PACKAGES="python-rosinstall ros-$ROS_DISTRO-robot-state-publisher ros-$ROS_DISTRO-cmake-modules ros-$ROS_DISTRO-freenect-stack ros-$ROS_DISTRO-openni-launch ros-$ROS_DISTRO-camera-info-manager-py" echo "deb http://packages.ros.org/ros/ubuntu $UBUNTU_VERSION main" | sudo tee /etc/apt/sources.list.d/ros-latest.list wget http://packages.ros.org/ros.key -O - | sudo apt-key add - sudo apt-get update sudo apt-get install ros-$ROS_DISTRO-desktop-full -y sudo rosdep init rosdep update sudo apt-get install $ROS_PACKAGES -y --force-yes
目前在Nvidia TX2上尝试安装ROS Kinetic的时候发现依赖libboost-all-dev，但是自带的源http://ports.ubuntu.com下面没有合适的源，尽管在universe源下面包含libboost-all-dev ，但是实际安装的时候发现安装不上。
因此尝试手工编译最新的boost安装包，建立自己的源。
首先，编译安装最新的crosstool-ng，如下：
$ sudo apt-get install git $ sudo apt-get install gperf $ sudo apt-get install bison $ sudo apt-get install flex $ sudo apt-get install texinfo $ sudo apt-get install help2man $ sudo apt-get install gawk $ sudo apt-get install libncurses5-dev $ cd ~ $ git clone https://github.com/crosstool-ng/crosstool-ng.git $ cd crosstool-ng $ git checkout crosstool-ng-1.23.0 $ ./bootstrap $ ./configure --prefix=/usr/local $ make $ sudo make install $ cd ~ $ mkdir tx2 $ cd tx2 #用树莓派的模板作为参考模板即可 $ cp ~/crosstool-ng/samples/aarch64-rpi3-linux-gnueabi/crosstool.config .config $ ct-ng oldconfig #默认一路回车即可,如果使用图形界面配置执行 ct-ng menuconfig $ unset LD_LIBRARY_PATH $ ct-ng build
生成的工具链在~/x-tools/aarch64-rpi3-linux-gnueabi目录下，编译的时候，指定编译工具即可。
安装编译依赖
$ sudo apt-get install devscripts $ sudo apt-get install cdbs $ sudo apt-get install python-dev $ sudo apt-get install libbz2-dev
接着，下载并编译最新的代码
#!/bin/bash
export DEBVERSION=1.58.0-1
if [ ! -d "boost_1_58_0" ]; then
wget "http://nchc.dl.sourceforge.net/project/boost/boost/1.58.0/boost_1_58_0.tar.bz2" -O boost_1_58_0.tar.bz2
tar xjvf boost_1_58_0.tar.bz2
fi
cd boost_1_58_0
:<<BLOCK
'export DEBVERSION=1.60.0-1
if [ ! -d "boost_1_60_0" ]; then
wget "http://downloads.sourceforge.net/project/boost/boost/1.60.0/boost_1_60_0.tar.bz2" -O boost-all_1.60.0.orig.tar.bz2
tar xjvf boost-all_1.60.0.orig.tar.bz2
fi
cd boost_1_60_0
'
BLOCK
#Build DEB
rm -rf debian
mkdir -p debian
#Use the LICENSE file from nodejs as copying file
touch debian/copying
#Create the changelog (no messages needed)
dch --create -v $DEBVERSION --package libboost-all ""
#Create copyright file
touch debian
#Create control file
cat > debian/control <<EOF
Source: libboost-all
Maintainer: LongSky <wangqiang1588@sina.com>
Section: misc
Priority: optional
Standards-Version: 3.9.2
Build-Depends: debhelper (>= 8), cdbs, libbz2-dev, zlib1g-dev
Package: libboost-all
Architecture: arm64
Depends: \${shlibs:Depends}, \${misc:Depends}, libboost-all (= $DEBVERSION)
Description: Boost library, version $DEBVERSION (shared libraries)
Package: libboost-all-dev
Architecture: any
Depends: libboost-all (= $DEBVERSION)
Description: Boost library, version $DEBVERSION (development files)
Package: libboost-build
Architecture: any
Depends: \${misc:Depends}
Description: Boost Build v2 executable
EOF
#Create rules file
cat > debian/rules <<EOF
#!/usr/bin/make -f
%:
dh \$@
override_dh_auto_configure:
./bootstrap.sh
override_dh_auto_build:
./b2 link=static,shared -j 1 --prefix=`pwd`/debian/libboost-all/usr/
override_dh_auto_test:
override_dh_auto_install:
mkdir -p debian/libboost-all/usr debian/libboost-all-dev/usr debian/libboost-build/usr/bin
./b2 link=static,shared --prefix=`pwd`/debian/libboost-all/usr/ install
mv debian/libboost-all/usr/include debian/libboost-all-dev/usr
cp b2 debian/libboost-build/usr/bin
./b2 install --prefix=`pwd`/debian/libboost-build/usr/ install
EOF
#Create some misc files
echo "8" > debian/compat
mkdir -p debian/source
echo "3.0 (quilt)" > debian/source/format
#Build the package
nice -n19 ionice -c3 debuild -b -d -uc -us
注意，对于boost-1.58来说，当时的代码是没有检测ARM64的功能的，当年也没有ARM64的芯片。因此需要修改{boost_root}/libs/config/checks/architecture/arm.cpp里面的代码，增加ARM64的判断
#if !defined(__arm__) && !defined(__thumb__) && \
!defined(__TARGET_ARCH_ARM) && !defined(__TARGET_ARCH_THUMB) && \
!defined(_ARM) && !defined(_M_ARM)
#error "Not ARM"
#endif
调整为
#if !defined(__arm__) && !defined(__thumb__) && \
!defined(__TARGET_ARCH_ARM) && !defined(__TARGET_ARCH_THUMB) && \
!defined(_ARM) && !defined(_M_ARM) && !defined(__aarch64__)
#error "Not ARM"
#endif
使用录屏功能，轻松给家中长辈制作手机视频使用教程，或录制打游戏过程中的精彩片段。
Ubuntu 16.04下使用
$ sudo apt-get install ffmpeg
安装ffmpeg工具。
$ ffmpeg -i S70131-15433307.mp4 -s 272x480 -b:v 200k output1.mp4
-s用于设定分辨率,-b:v设定视频比特率来压缩大小
$ ffmpeg -ss 2 -t 5 -i output1.mp4 -s 272x480 -r 15 output1.gif
-ss 2 -t 5，从第2秒的地方开始，往后截取5秒钟, -r用于设定帧数. 通常Gif有15帧左右就比较流畅了
$ convert output1.gif -fuzz 20% -layers Optimize output2.gif
设置fuzz因子可以将相近的颜色视为相同的颜色，这样就可以抵消抖动和色彩压缩的影响。
-fuzz选择多少能取得最大的压缩效果，同时对画质的影响可以接受，则需要耐心地尝试。
最近在一台安装了GeForce GTX 970显卡的机器上，一直无法安装Ubuntu 16.04.3系统的时候，一直卡住在如下界面：
当时买RAV4的时候，展车是改装了10.2存屏幕的，当时脑子一冲动，就要求4S店加装，结果就是这个飞歌导航G6S二代。
刚刚安装好，还是不错的，但是半年左右的样子，就开始出现异响，后来声音越来越大，一直吱吱吱的不停，都有些神经衰弱了。
于是手工拆开，自己动手解决异响问题。
注意，升级BIOS，不需要创建启动U盘，更不需要安装Windows系统，只需要网页端通过iLO操作即可实现。
iLO 当前的版本分为硬件版本和软件版本
可以根据 升级 HP MicroServer Gen8 iLO 秘笈 的介绍，从HPE官网搜索并下载BIOS文件（官网建议下载Windows 版本的升级包，里面文件解压缩后最少），也可以从本站下载BIOS固件 iLO2.5 或者 HP Gen8 BIOS 20190404。
iLO2.5 解压缩完成后，其中的cp031064 gen8 bios 2015.11.02.exe就是我们需要升级的BIOS固件。
HP Gen8 BIOS 20190404 解压缩出来的`cp039540.exe`也是我们需要升级的BIOS固件，这个是目前最新的版本。
我们用7z等解压缩软件，解压缩出里面的文件，iLO 2.5中的`CPQJ0612.F62` 或者 HP Gen8 BIOS 20190404 中的`CPQJ0613.684` 就是我们的升级文件，两者都可以，一般建议用最新的 HP Gen8 BIOS 20190404 里面的文件。
iLO是Integrated Ligths-out的简称，是HP服务器上集成的远程管理端口，它是一组芯片内部集成vxWorks嵌入式操作系统，通过一个标准RJ45接口连接到工作环境的交换机。只要将服务器接入网络并且没有断开服务器的电源，不管HP服务器的处于何种状态（开机、关机、重启），都可以允许用户通过网络进行远程管理。简单来说，iLO是高级别的远程KVM系统，可以将服务器的显示信息显示在本地，并且使用本地的键盘鼠标控制、操作服务器，并可以将本地的光盘镜像、文件夹作为虚拟光驱映射并加载到服务器中。使用iLO，可以完成低层的BIOS设置、磁盘RAID配置、操作系统的安装等底层的工作，并且可以在完成系统安装后实现系统的远程控制与管理。
iLO 当前的版本分为硬件版本和软件版本
iLO 2.73版本新增了基于`HTML5`的远程控制台，比以前方便多了，建议升级这个版本。
可惜HP官网上并没有在明显的位置找到iLO的升级文件下载的地方，可参考 升级 HP MicroServer Gen8 iLO 秘笈 的介绍，自己搜索下载需要的版本。也可依赖网友们共享已经下载完成的更新文件。
我们知道Windows下有类似UltraISO的这样的软件可以用来编辑ISO文件，可引导ISO也没有问题。近来在Linux下玩的比较多，正好要改个ISO，于是就开始找Linux下有没有类似的软件。
Ubuntu软件中心里有一款叫ISOMaster的软件，可以创建和修改ISO文件。