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© 2007 Apple Inc.This post is an add-on to the post about shrinking an OS X DVD from september due to a question I received.
The Problem with the disk image file is the following: it stores the data in a precise logical block. When burning the DMG file, the logical block will become the physical block. If any data resides in the last block of the disk, the hdiutil command is not able to relocate this data onto another, empty block of the disk. Or rather than not being able it is not supposed to relocate any data since the DMG format is supposed to give an exact copy of the original disk.
So what can You do if You still want to resize an OS X DVD disk image? The only way I achieved to resize the file is to delete all the files in /System/Installation/Packages, resize the file, and put the packages back on. It is not absolutely sure this works since it depends on the low level layout of the original disk, but for mine it worked.
If You are interested in further information about file systems, You may want to visit the following pages:
wikipedia.org/HFS_Plus
wikipedia.org/Inode
"Wenn du das, worüber du sprichst, messen und in Zahlen ausdrücken kannst, so verstehst du die Materie; Jedoch wenn du es nicht in Zahlen ausdrücken kannst, so ist dein Wissen dürftig und unbefriedigend."
William Thomson, 1. Lord Kelvin
"Die großen Leute haben eine Vorliebe für Zahlen. Wenn ihr ihnen von einem neuen Freund erzählt, befragen sie euch nie über das Wesentliche. Sie fragen euch nie: Wie ist der Klang seiner Stimme? Welche Spiele liebt er am meisten? Sammelt er Schmetterlinge? Sie fragen euch: Wie alt ist er? Wieviele Brüder hat er? Wieviel wiegt er? Wieviel verdient sein Vater? Dann erst glauben sie, ihn zu kennen."
Antoine de Saint Exupéry, Der kleine Prinz, Kap 4 Abs 6
Und doch muss ich in beiden Welten wohnen, und beide haben ihre Berechtigung. Jede zu ihrer Zeit.
© 2007 Apple Inc."The Apple iPhone runs on an ARM architecture CPU" I read on Apple news sites. I had never heard of this architecture and went to wikipedia.org/ARM_architecture to find some very interesting facts:
ARM stands for "Advanced RISC Machine" which is the name of the company developing the architecture
OS X was running on RISC (Reduced Instruction Set Computing) architecture before the switch to Intels CISC (Complex …)
The first usable architecture, the ARMv2, was developed in 1985
pretty old stuff *cough*
ARMv3 powered Apples Newton!
All the people speculating about a redesign of the Apple Newton were very right too
ARMv4T runs the iPod and the Nintendo DS
Apples software developers already knew the platform
ARMv5TE runs various Mobile Phones, Palms, SmartPhones and Mobile Gaming Consoles
ARMv6 runs the Zune and - what an irony - the iPhone!
I bet M$' Bill G. wants to lynch his product developers *biggrin*
I am looking forward to where this (according to Apple) third revolutionary product leads the Industry. And I am certainly longing to see the iPhone V2 or later providing laptop computing possibilities in your pocket!
Thanx go to puerro! (who could have published this on his own blog by the way...)
© 2007 Apple Inc.Why does iCal suck for professional use? You don't have week numbers!
Remedy: Use NumSemaine to generate a calendar telling you the week. My favourite settings is "Mark on the 1rst day, schedule event 07:00" as my iCal day begins at 7AM. Like this it doesn't add an all-day event which consumes too much space in my eyes.
This year, there was no confusion about week 01 since the first of January was a Monday. But next year, week 01 will start with the 4. of January according to the ISO specification:
[...] the first week of a new year is the week that has the majority of its days in the new year. Week 01 might also contain days from the previous year [...]
In the case that week 01 contains days from the previous year, you also can set the start date manually.