Add these lines into you ~/.ssh/config file. It can help you send keepalive message 6 times every 30 seconds.
Host *
ServerAliveInterval 30
ServerAliveCountMax 6
Add these lines into you ~/.ssh/config file. It can help you send keepalive message 6 times every 30 seconds.
Host *
ServerAliveInterval 30
ServerAliveCountMax 6
Log in as padmin
$ oem_setup_env # echo "export ENV=/home/padmin/.kshrc" >> /home/padmin/.profile
# echo "export HOST=\"\$(/usr/bin/uname -n)\"\nif [ \"\`whoami\`\" = \"root\" ]; then\n PS1=\"\`whoami\`@\$HOST:\\\$PWD # \"\nelse\n PS1=\"\`whoami\`@\$HOST:\\\$PWD $ \"\nfi\n\nset -o emacs;alias -x __A=\"\$(echo '\\\\020')\"; alias -x __B=\"\$(echo '\\\\016')\"; alias -x __C=\"\$(echo '\\\\006')\"; alias -x __D=\"\$(echo '\\\\002')\"; alias -x __H=\"\$(echo '\\\\001')\"; alias -x __Y=\"\$(echo '\\\\005')\"\n" >> /home/padmin/.kshrc
Uncheck the box “Set locale variables automatically” in iTerm2 under Preferences -> Profiles -> Terminal
Try to install X11 font
yum install xorg-x11-fonts-Type1
It’s a nightmare if you have a unsupported arch while building tools. I have tried to build docker for RHEL/CentOS, Ubuntu for ppc64le. It took me lots of time.
Fortunately, from 1.10, docker will support arch ppc64le officially. ppc64le will be the default arch for OpenPOWER system. As of now, docker code is still in reorg. So there might be some tricks while building docker for ppc64le. Follow below steps. You can get a preview docker 1.10.0-dev for your system. Let’s try it.
It is much simpler than before. Only two commands~
docker build -t docker -f Dockerfile.ppc64le . docker run --privileged docker ./hack/make.sh gccg
Let’s check the running version.
./docker-1.10.0-dev version Client: Version: 1.10.0-dev API version: 1.23 Go version: go1.4.2 gccgo (GCC) 5.3.0 Git commit: 6f86bce-unsupported Built: Sun Jan 31 16:11:15 2016 OS/Arch: linux/ppc64le Server: Version: 1.10.0-dev API version: 1.23 Go version: go1.4.2 gccgo (GCC) 5.3.0 Git commit: 6f86bce-unsupported Built: Sun Jan 31 16:11:15 2016 OS/Arch: linux/ppc64le
88SE91xx 可以使用 AHCI 驱动,但是默认 Linux 无法识别 88SE91xx 需要手动添加到 AHCI 列表中。方法如下。
$ lspci -nnk | grep Marvell 04:00.0 RAID bus controller [0104]: Marvell Technology Group Ltd. 88SE9172 SATA III 6Gb/s RAID Controller [1b4b:9192] (rev 11)
$ /bin/echo 1b4b 9192 > /sys/bus/pci/drivers/ahci/new_id
这样就能识别到在 88SE91xx 上的硬盘了。
root@raspberrypi ~/tools/RPi.GPIO-0.5.2a # python setup.py install running install Checking .pth file support in /usr/local/lib/python2.7/dist-packages/ /usr/bin/python -E -c pass TEST PASSED: /usr/local/lib/python2.7/dist-packages/ appears to support .pth files running bdist_egg running egg_info writing RPi.GPIO.egg-info/PKG-INFO writing top-level names to RPi.GPIO.egg-info/top_level.txt writing dependency_links to RPi.GPIO.egg-info/dependency_links.txt reading manifest file 'RPi.GPIO.egg-info/SOURCES.txt' reading manifest template 'MANIFEST.in' writing manifest file 'RPi.GPIO.egg-info/SOURCES.txt' installing library code to build/bdist.linux-armv6l/egg running install_lib running build_py running build_ext building 'RPi.GPIO' extension gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/usr/include/python2.7 -c source/py_gpio.c -o build/temp.linux-armv6l-2.7/source/py_gpio.o source/py_gpio.c:23:20: fatal error: Python.h: No such file or directory compilation terminated. error: command 'gcc' failed with exit status 1
解决方法:
安装对应版本的 python-dev,
root@raspberrypi ~/tools/RPi.GPIO-0.5.2a # apt-get install python2.7-dev Reading package lists... Done Building dependency tree Reading state information... Done The following NEW packages will be installed: python2.7-dev 0 upgraded, 1 newly installed, 0 to remove and 343 not upgraded. Need to get 28.7 MB of archives. After this operation, 35.3 MB of additional disk space will be used. Get:1 http://mirrordirector.raspbian.org/raspbian/ wheezy/main python2.7-dev armhf 2.7.3-6 [28.7 MB] Fetched 28.7 MB in 17s (1,644 kB/s) Selecting previously unselected package python2.7-dev. (Reading database ... 66907 files and directories currently installed.) Unpacking python2.7-dev (from .../python2.7-dev_2.7.3-6_armhf.deb) ... Processing triggers for man-db ... Setting up python2.7-dev (2.7.3-6) ...
在不加载 module 的情况下判断 module 是否已安装
import imp class checkModule: def check_psutil(self): try: imp.find_module('psutil') found = True except ImportError: found = False if not found: raise AssertionError('Module psutil is not installed.') else: print('Module psutil is installed.')
新安装的 CentOS 6.3 的服务器使用原始 Samba 配置文件却无法正常工作,症状是:能够访问,但是进入目录提示没有权限。
尝试方法:
关闭 SELinux
vim /etc/sysconfig/selinux
改为如下:
# This file controls the state of SELinux on the system. # SELINUX= can take one of these three values: # enforcing - SELinux security policy is enforced. # permissive - SELinux prints warnings instead of enforcing. # disabled - SELinux is fully disabled. #SELINUX=enforcing SELINUX=disable # # SELINUXTYPE= type of policy in use. Possible values are: # targeted - Only targeted network daemons are protected. # strict - Full SELinux protection. SELINUXTYPE=targeted