Boot.img


  1. jpizle

    jpizle Well-Known Member

    Any one dumped the boot.img? I need it bad!

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  2. sammyz

    sammyz LG Whiz Kid Guide

    Nandroid online backup would have it if you did that...
    jpizle likes this.
  3. mrpnut

    mrpnut THE WORLD IS YOURS Guide

    sandpipershore likes this.
  4. omgbossis21

    omgbossis21 Well-Known Member

    When i try to split that boot.img it says no android magic found, giving up.....

    boot image must be created using mkbootimg..
  5. enigmadroid

    enigmadroid Well-Known Member

    Are you on Windows? Have you tried cygwin?
  6. omgbossis21

    omgbossis21 Well-Known Member

    I'm using Ubuntu. Will have more time this weekend to mess with it.
  7. plasticarmyman

    plasticarmyman Well-Known Member

    just to be curious....what do you need it for?...if i could get my device to be seen on ubuntu i'd pull the boot img for you....i'm here at work on my ubuntu workstation...
  8. enigmadroid

    enigmadroid Well-Known Member

  9. plasticarmyman

    plasticarmyman Well-Known Member

    okay...well...sorry for sounding like a n00b, but this is merely my work computer...so i do not do any dev stuff on it...in fact i don't do dev stuff very much at all!...so can you walk me through how to pull the boot.img?....i just need the commands, i know how to run command lines from terminal and stuff like that, but i just do not know the proper commands to pull the boot.img
  10. enigmadroid

    enigmadroid Well-Known Member

    in shell
    dd if=/dev/block/mmcblk0p7 of=/sdcard/boot.img
    plasticarmyman likes this.
  11. plasticarmyman

    plasticarmyman Well-Known Member

    and now, of course, i did not bring my usb cord to work with me....i'll pull it tomorrow and have it posted on here when that happens.
  12. omgbossis21

    omgbossis21 Well-Known Member

    I'm having issues with adb on my Ubuntu right now I gotta find time to fix that.
  13. enigmadroid

    enigmadroid Well-Known Member

    plasticarmyman and jpizle like this.
  14. omgbossis21

    omgbossis21 Well-Known Member

    I have fully extracted the boot.img and ramdisk. If their is somewhere i can host it for free let me know. Obviously you know if you decide to make changes you must repack the boot img. I'm searching through code as we speak however I know other programming languages but not this, although i make it out for the most part. If your interested in the files just pm me your email address and I will send them over.
  15. omgbossis21

    omgbossis21 Well-Known Member

    Could we even push a modified kernal/ramdisk to our phone I see lots of possibly good settings to tinker with.
  16. Shabbypenguin

    Shabbypenguin Well-Known Member Developer

    course you can
  17. plasticarmyman

    plasticarmyman Well-Known Member

  18. Shabbypenguin

    Shabbypenguin Well-Known Member Developer

    lol i dont know how many more times i can explain it :p

    you push power button
    device powers on
    loads the bootloader level 1
    which then loads level 2
    which then hash checks the boot kernel and recovery kernel
    level 2 then hands off to normal boot operations (prolly level 3 or directly to boot kernel)

    ANY changes to the kernel will result in a hash failure, regardless of how you flash it, its checking it on boot. it is however possible to forge a hash by collision. An Illustrated Guide to Cryptographic Hashes here is a quick little guide to trying to make an MD5 collision. keep in mind this guide is for newbies. you will need to edit the ramdisk and then pack it back up (also removing the padding) and hope it doesnt alter the md5 from what you were shooting for. oh yea, i almost forgot... since we dont even know what kind of hash they are using it makes it a bit harder since it may not even be using MD5 (could be SHA-0, SHA-1 etc etc).

    in fact your ONLY shot at running init.d like tweaks would be if teh init.rc showed they launched some script in /system/etc during boot and you could then edit that script to do what you wanted/needed.

    so yea my comment still stands, you can flash whatever you want to your kernel partition, just make sure you have sammyz firmware downloaded. otherwise you can enjoy the worlds fastest booting lg motion :)

    edit: anyone wishing to test this theory feel free to unpack the stock boot.img and repack it, it only will remove the padding on the file and that alone will cause your device not to boot. its the same on the lg optimus elite, 4x HD, p700 and im sure many many others now
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