edwinwang.com

Author: Edwin

  • 吐槽一下MacOS权限管理中的本地网络

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    Edwin
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    一早想访问个本地网络的KVM guest，发现怎么都ping不通，但是反向通。traceroute两边都通。奇奇怪怪的问题，翻找了半天路由配置，无果。 想到用其他设备测试，都是OK的。百思不得其解，找不同，区别： 第一个想到的是网络设备的更新，翻找了一些设备系统更新日志，没找到什么相关更新。 找了另一台MBP，一直没更新系统。iTerm没有问题，忽然是不是MacOS的权限问题，bingo 就这……这表现也太无语了。

  • Resize QEMU image for Openwrt

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    Edwin
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    While using ext4 combine image from Openwrt website directly, you will find the openwrt system only about 100MB disk. The disk has to be resized before resize the partition and filesystem. Here is the steps you can follow. First, resize the qemu image. Reference. After Openwrt system booted up. Reference. Resize ext4 filesystem after partition…

  • SSH connection keepalive

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    Edwin
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    Add these lines into you ~/.ssh/config file. It can help you send keepalive message 6 times every 30 seconds.

  • Enable backspace in VIOS command line

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    Edwin
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    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” >>…

  • OS X Terminal: -bash: warning: setlocale: LC_CTYPE: cannot change locale (UTF-8): No such file or directory

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    Edwin
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    Uncheck the box “Set locale variables automatically” in iTerm2 under Preferences -> Profiles -> Terminal

  • X11 forwarding box font…

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    Edwin
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    Try to install X11 font yum install xorg-x11-fonts-Type1  

  • Build docker for OpenPOWER (ppc64le)

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    Edwin
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    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…

  • Linux 下安装识别 Marvell 88SE91xx 硬盘

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    Edwin
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    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。 首先获得到 88SE91xx 的 Vendor ID 和 Device ID $ 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) 使 AHCI 识别 $ /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。

  • 强制 VMware vSphere Client 语言以英文运行

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    Edwin
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    步骤： 右击 vSphere Client 图标 选择 “快捷方式” 选项卡，在目标后加上 “-locale en_US” 确定退出 使用更改后的快捷方式打开 vSphere Client

  • fatal error: Python.h: No such file or directory

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    Edwin
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    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…