Booting SSH ramdisk on new devices

This information is deprecated; please use the new automatic tool here.

Booting 4.2 bundle - instructions

Instructions

• Download the appropriate tetheredboot binary for Windows or OS X from https://github.com/msftguy/syringe/downloads
• Update: OS X version does NOT need libUSB from MacPorts any more.
• Put the device in DFU mode
• Use the command line tetheredboot -i iBSS.CPUap.RELEASE.dfu -k kernelcache.release.CPU to boot, where CPU is k48 for iPad, n90 for iPhone4
• These files (iBSS and kernelcache) need to be extracted from custom ipsw you made using the bundle!

Bundles 

• Look here for bundles: https://sites.google.com/site/msftguy/file/