redsn0w 的用法與解說

Devteam 已經在稍早公佈了 redsn0w 0.9.9b1， 由於這個版本的功能有大幅增加，所以皮樂在此先寫一篇簡單的功能介紹， 幫助一些英文沒那麼好的夥伴看懂新功能有哪些。 首先開啟新版redsn0w之後，只會出現Jailbreak跟Extras了， 而其實對大家來說最重要的部分就是Jailbreak， 在新版redsn0w當中，你再也不需要去選擇韌體版本，甚至不必再花時間下載韌體了！ 因為redsn0w會自動連線到Apple 的伺服器，去抓取你手機對應型號，對應版本的韌體片段，（韌體片段應該不會很大，放心） 講簡單一點，就是新版redsn0w就跟4.2.1那時候的greenpois0n一樣，是不需要手動載入韌體的。

選擇extra之後則有許多選項，大家可以自己看圖，講解的很明白了 

 選擇SHSH blobs之後又會出現以下畫面， 這邊我就要說明一下了，Fetch代表從機器抓取SHSH， 意思就是跟iFaith類似啦，就算Apple停發了4.3.3的SHSH，但是你的iPhone還在4.3.3的話， 還是可以抓取到"部分"的SHSH的。 而除了抓取之外，最重要的的就是最下面那個按鈕了， 如果你製作了一個包含SHSH的韌體之後，這意味著你再也不需要 小雨傘，也不需要改Host檔案！ 因為韌體本身就會讓iTunes自動讀取韌體中的SHSH，這樣就不需要再把SHSH指向外部了！

 最後則是一些小設定 

 以上就是新版redsn0w的功能詳解，希望大家能夠看懂～～ 


（補充1：SHSH有分"完整"跟"部分"兩種，Apple發的是完整SHSH， 目前在Cydia跟小雨傘備份的也是完整SHSH，用iFaith抓的SHSH則是"部分"的SHSH， 兩者主要的差異是，唯有完整的SHSH才可以刷官方無JB的韌體， "部分"的SHSH 只能包在自製韌體使用，另外一個差異是"部分"SHSH作的自製韌體必須在pwned DFU模式底下才可以刷過， 完整SHSH作的自製韌體則只要在純DFU底下刷就可以過了） 


（補充2：所謂的pwned DFU模式指的是藉由軟體引導的DFU模式，跟一般自己未經過JB軟體輔助而進入的DFU模式不同） 


（補充3：JB自動抓取韌體片段僅限於公開的韌體檔案，beta版本的韌體還是得手動指定韌體） 


（補充4：把SHSH裝進韌體的功能目前還不支援iPhone）

iPhone4 iOS 5.0.1 全Jailbreak (Untethered 5.0.1 jailbreak)

Untethered 5.0.1 jailbreak for Non-A5 Devices Released
iOS 5.0.1 全Jailbreak (redsn0w 0.9.10)

iOS 5.0.1 全JB釋出，不支援5.0，你必須升級到 5.0.1 才可以用。（5.0的稍晚會出）

PC版本 需確定在系統管理員權限使用

不支援iPhone 4S / iPad 2 


No SUPPORT iPhone 4s / iPad 2

使用方法跟 redsn0w 0.9.9一樣，詳細功能說明看這裡


*如果你已經半JB，請去Cydia找到"Corona 5.0.1 Untether"， 安裝之後就是全JB了，不必再刷一次
*If you are half jailbreak (tenthered), go thru Cydia search & install the "Corona 5.0.1 Untether"

切記要備份SHSH，別隨便升級到未來可能出的 iOS 5.0.2 (或者5.1)
Remember backup your SHSH by tinyumbrella




iOS 5.0.1 全Jailbreak 下載鏈接:
Untethered 5.0.1 jailbreak Download link:


redsn0w 0.9.10b2 for OS X
redsn0w 0.9.10b2 for Windows (be sure to run in Administrator mode)
Update #2: The b2 version of redsn0w includes the launchctl-related fix by @planetbeing as mentioned by @saurik here and here.  As usual, you can just re-run redsn0w in jailbreak mode over your existing 5.0.1 jailbreak (even a PwnageTool one), making sure to de-select “Install Cydia” if you do.  Always be sure to do a controlled “slide to power off” shutdown of your device before running redsn0w.
****redsn0w 0.9.10b3 will update soon - by Saurik***

Mac：官方載點 

PC：官方載點 


***另外切忌胡亂安裝任何cydia軟件,目前cydia軟件還不穩定!!
***Don't simply install any software in cydia, by right now still not stable for ios 5!

Which partition is fastest?

Which partition is fastest? 

Drive speed varies from outer tracks to inner tracks, by simple math (circumference X data density), see Why you need more space than you need.

When making more than 1 partition on the same drive, the first one listed is fasters (outer tracks), and the last one listed will be slowest (inner tracks). For SoftRAID, the first partition created is fastest, the next one created is next-fastest, etc.

Schematic of a disk platter (not to scale)
Observe the difference in circumference

A drive capable of 100MB/sec might decline in speed from 100MB/sec down to a sluggish ~60MB/sec. Exploiting this fact can guarantee high performance for many uses.  

For example, installing a 2TB drive and using the first 1TB is substantially faster than using a 1TB drive, by about 25%.

 

*Please refer the post about "Partition Hard Drives in Apple Mac"

Using Cloning as a Backup Strategy

Cloning is more than a backup, it’s a functionally-identical copy, a distinction that is particularly relevant for your boot drive (system and applications): you can start the Mac from the clone. But it’s also useful for efficiently backing-up any volume.
My preferred way to backup is with a large external 2TB or 3TB drive, so that I can backup everything to one drive. I backup both my Boot drive (system and applications, mail, calendar, etc), as well as my data (Master volume).

Step by step

To backup my two desktop volumes Boot and Master onto a single external hard drive:

1. Partition the external backup drive into BootClone and MasterClone. This need only be done once, the first time. Subsequent backups it’s ready to go.
2. Clone Boot to BootClone.
3. Clone Master to MasterClone.
4. You now have a bootable backup drive with all your stuff. Store the backup drive somewhere safe, away from the computer.

The cloning process takes time in proportion to how much data is present, so clear out any files you don’t need, and empty the trash first. In most cases, cloning is smart enough to only copy what has changed.
My preference is to append the date and time to the volume name of the clone, so that I know when I made it.

Cloning with Carbon Copy Cloner

Shown below is the window for Carbon Copy Cloner, one of several programs that can make a clone.
Select your existing drive (“Source Disk”) and select the new drive (“Target Disk”), then click the Clone button.
As shown below, the boot volume Master is being cloned to MasterClone-2011-0120-1335. Be careful not to clone the backup drive to the original!

 

The cloning process will take time proportional to how much data you have on the drives, the speed of each drive, etc. If this is an update, the process can be very quick, since usually only changed files need be copied.