Erning.write() » mac

Mac Tips 3 – Startup Options

erning — Wed, 09 Mar 2011 17:20:23 +0000

Startup keyboard shortcuts

Option	Display all bootable volumes
C	Start from a bootable disc (DVD, CD)
T	Start in FireWire target disk mode
N	Start from NetBoot server
X	Force Mac OS X startup (if non-Mac OS X startup volumes are present)
X	Force Mac OS X startup (if non-Mac OS X startup volumes are present)
Shift	Boot in Safe Mode. Effectively the same as passing “-x” in Kernel Flags, and causes most caches to be ignored by the booter.
Command-S	Boot in Single User Mode. Effectively the same as passing “-s” in Kernel Flags, and causes the system to boot to an interactive shell with no system services started.
Command-V	Boot in Verbose Mode. Effectively the same as passing “-v” in Kernel Flags, and causes the system to boot to verbose text logging before starting the graphical user interface.
3 2	Boot with the 32-bit kernel. Effectively the same as passing “arch=i386″ in Kernel Flags, and causes the system to prefer the 32-bit kernel on systems that would otherwise boot the 64-bit kernel.
6 4	Boot with the 64-bit kernel (if supported on this system). Effectively the same as passing “arch=x86_64″ in Kernel Flags, and causes the system to prefer the 64-bit kernel on systems that would otherwise boot the 32-bit kernel. If the 64-bit kernel is not supported, the option is ignored.

Hold down the mouse’s primary key during startup. On a two- or three-button mouse, the primary key is usually the left button. This shortcut will eject a CD or DVD from the optical drive.

Hold Command + Option + ‘p’ + ‘r’ during startup. This zaps the PRAM (Parameter RAM), an option that long-time Mac users will remember. Press and hold the key combination until you hear the second set of chimes. Zapping the PRAM returns it to its default configuration for display and video settings, time and date settings, speaker volume, and DVD region settings.

/Library/Preferences/SystemConfiguration/com.apple.Boot.plist

Mac OS X keyboard shortcuts

Mac OS X Startup Keyboard Shortcuts

Mac Tips 2

erning — Fri, 04 Mar 2011 21:07:41 +0000

Disable Spotlight in Mac OS X 10.6

Disabling Spotlight in Snow Leopard is pretty easy, launch the Terminal and type the following command:

sudo mdutil -a -i off

This tells the Spotlight manager to disable all indexing on all volumes, the command will require your administrative password to execute.

Re-enabling Spotlight in Mac OS X 10.6 Snow Leopard is just as easy, just reverse the command to:

sudo mdutil -a -i on

Now Spotlight indexing will be back on and work as usual.

– osxdaily

sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.metadata.mds.plist
sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.metadata.mds.plist

Mac Tips 1

erning — Wed, 24 Nov 2010 17:52:31 +0000

Prevent .DS_Store file creation on network stores

defaults write com.apple.desktopservices DSDontWriteNetworkStores true

Enable Remote Disc for MacBook Pro

defaults write com.apple.NetworkBrowser EnableODiskBrowsing -bool true
defaults write com.apple.NetworkBrowser ODSSupported -bool true

Flush DNS Cache

dscacheutil -flushcache

Set hostname and prevent the DHCP server to change your host name

scutil --set HostName

Hide the file/folder from GUI Finder

chflags hidden 
chflags nohidden

Remove file attributes for Finder

xattr -l 
xattr -d com.apple.FinderInfo

Clean Up Finder’s “Open With” Menu

# Go to your Home/Library/Preferences folder
# Find “com.apple.LaunchServices” file and trash it (you can back it up if you want)
# Test it out!
lifehacker

工程师普遍采用的时区是当地时区-8

erning — Sat, 27 Feb 2010 09:36:34 +0000

我很喜欢《苹果往事》这本书，它以工程师的视角写记录了很多趣闻轶事。加上是APPLE ][将我带入计算机这个领域的，所以我对这家公司有着相当的感情。

书中有多很有趣的事，放到近三十年后的今天也还一样。例如，工程师周末、晚上常加班，还是主动的；不少有价值的东西是工程师利用业余时间制作的；用代码行数统计工程师的工作量时工程师会填上负数；开发经理和工程师互动常有困难；工程师有惰性时，好的老板能够逼工程师完成工程师自己认为不可能的任务；现实扭曲力场(Reality Distortion Field)对创造力的作用….

还有一点我看出来了，工程师普遍采用的时区是当地时区-8

书中的故事都可以着folklore.org网站上读到。