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Discuss Tethered jailbreak with iRecovery at the Redsn0w - Hackint0sh.org; Originally Posted by redbullpower Kekec Yes it is a problem with the iPhone boot. I ...
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    Super Moderator Array Olethros's Avatar

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    Quote Originally Posted by redbullpower View Post
    Kekec

    Yes it is a problem with the iPhone boot. I have so far only found iRecovery which can connect to the iphone in recovery mode. Apparently the fs commands in irecovery are locked until the exploit is run. I am not even sure if a fsck is available in the fs commands though. If I can use any tool while in recovery mode to send the command fsck_hfs -r /dev/diskr02s1 then it should fix the problem.
    This is a limitation of recovery mode. It does not have support for this.

    You need to make and boot from a ramdisk via iRecovery, then you can perform a fsck. Tools like redsn0w use ramdisks to perform the required changes on the iPhone's filesystem. Even the official apple IPSW ues a ramdisk for this purpose.
    Please read the stickies & search forum before posting!
    How to report an iTunes restore/update fail in a useful manner
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    Default Ram disk

    Olethros

    Thanks...is there a utility to do this, if not how can I do this from iRecovery?

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    Super Moderator Array Olethros's Avatar

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    Quote Originally Posted by redbullpower View Post
    Thanks...is there a utility to do this, if not how can I do this from iRecovery?
    There is no utility or documentation on how to do this. The only people who have the skills to do this are those who make jailbreaks, Apple (of course) and to a limited degree those who work in forensics.
    Please read the stickies & search forum before posting!
    How to report an iTunes restore/update fail in a useful manner
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    iPad 3G 64GB (4.3.3, Redsn0w) oldest SHSH 3.2.2
    iPhone 4 32GB (4.2.1, Redsn0w JB-monte) oldest SHSH 4.1
    iPhone 3GS 32GB (4.3.3; Pwnagetool) factory unlocked oldest SHSH 3.1
    iPhone 8GB (3.1.3; Pwnagetool) AT&T Locked - Unlocked with bootneuter

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    Unhappy iRecovery

    I found that iRecovery could be useful in my case, just need to rename one folder, but fs command always give Permission Denied reply. There is no clear explanation, why Permission Denied? I found success that some people can move files with fs mv, but why in my case iRecovery give Permission Denied on 3G 3.0FW? Can you or anybody explain shortly?

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    Thumbs up It is possible!

    Going back to the post of the original thread, I have found a way to do it for fun. you need a copy of blackra1n for mac to extract some files. you wil neeed to extract:
    blackra1n.app/Contents/Resources/payload
    blackra1n.app/Contents/Resources/me.img3
    blackra1n.app/Contents/Resources/purpled1sk.dmg
    Place them all in the irecovery folder then run

    iRecovery -s

    Then type in shell, one line at a time:

    setenv auto-boot true
    saveenv
    /exploit payload
    geohot
    /upload geohot.img3
    setpicture 0
    bgcolor 1 1 1
    geohot
    /exit

    then wait.......

    Hope this helps

    Edit:

    You don't need the purpled1sk for the commands above, though you are in recovery mode, theoretically you should be able to upload the purpled1sk before the final geohot to jailbreak your device without the blackra1n app. Longer but more fun :-)

    Your final set of commands for a first time jailbreak would be:
    iRecovery -s

    /exploit payload
    geohot
    /upload geohot.img3
    setpicture 0
    bgcolor 1 1 1
    /upload purpled1sk.dmg
    geohot
    reboot
    /exit

    iRecovery -s

    setenv auto-boot true
    saveenv
    /exploit payload
    geohot
    /upload geohot.img3
    setpicture 0
    bgcolor 1 1 1
    geohot
    /exit
    Last edited by blackthund3r; 03-18-2010 at 06:15 PM. Reason: Problem with purpled1sk instruction....


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    Quote Originally Posted by kekec View Post
    I got the payload from usb trace ( recorded with trial version of hhd usb monitor ).

    I'm planing of making a keychainable dongle with this, so I can carry it with me. I'm just not sure if it's worth the trouble since there might be untenthered jailbreak coming along and 4.0 is also close.
    kekec, any chances for you te explain a little better how you managed to extract the payload from redsn0w? I'm very interested in a dongle to just boot my jailbroken 3GS.

 

 
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