Flashing just a kernel

Discussion in 'Android Hacks and Help' started by nerdbox08, Mar 3, 2010.

  1. nerdbox08
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    nerdbox08 New Member

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    Howdy.

    I have read people using one ROM and flashing someone else's kernel.

    I am curious how this is done.

    So far I've read you flash just the BOOT from the update or nandroid.

    Is this true?

    Thanks :)
  2. Topsy
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    Topsy New Member

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    Great guide here

    Overclocking the Droid | Root Your Droid

    He's using one of chevy's older kernels, but can easily use that with anyones by exctracting the boot.img from their ROM.

    Wifi tether requires another patch from the ROM as well though, you'll need the tiwlan_drv.ko located in /system/lib/modules/

    The kernel and tiwlan must be from the same rom, they are compiled to work together specifically.
  3. nerdbox08
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    nerdbox08 New Member

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    I'm rooted and such, I guess I'm apprehensive because I don't understand all the different pieces involved well enough.

    I don't completely understand what the kernel is opposed to the ROM. :|

    Argh.
  4. mwhartman
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    mwhartman Super Moderator/RS Premium Member

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    Try reading this guide (http://www.droidforums.net/forum/ha...ng-only-sprecovery-terminal-emulator-zip.html). It steps you through rooting and flashing/installing a ROM. Step 43 takes you through adding a kernel to the rom.

    Hope it helps.

    Mike
  5. nerdbox08
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    nerdbox08 New Member

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    Okay, going to look it over, thanks :)
  6. stratt
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    stratt New Member

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    just save kernel as update.zip and flash using sprecovery
  7. nerdbox08
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    nerdbox08 New Member

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    I get that's what I'm, supposed to do, but I don't know how to pull just the kernel.

    A lot of people are using SG 5.0 with Chevy's kernel.

    I've been running SG 5.0 and I want to attempt to apply Chevy's kernel to it, like these over people have tried.

    I thought Chevy's was a full ROM, so how would I pull just the kernel out?

    My brain is melting.
  8. Topsy
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    Topsy New Member

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    open the ROM and the kernel is the boot.img file.

    That is all you need, unless you use wifi tether.
  9. nerdbox08
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    nerdbox08 New Member

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    Okay this is starting to make more sense.

    :p
  10. Topsy
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    Topsy New Member

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  11. nerdbox08
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    nerdbox08 New Member

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  12. mwhartman
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    mwhartman Super Moderator/RS Premium Member

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    Look at step 43. It lists several additional kernels.

    OPTIONAL Kernels: (rename to update.zip and install using instructions below)
    Stock 550 MHz (Already Included, Does not support Wifi Tether)
    t3hSteve 600 MHz (recommended)
    AdamZ 1 GHz
    DroidMod's Latest 1.2 GHz (a.k.a. Sholes.info)
    ChevyNo1's 10 Slot 1.2 GHz
    ChevyNo1's 10 Slot 1.25 GHz

    Mike
  13. nerdbox08
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    nerdbox08 New Member

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    Thank you to everyone who responded.

    It makes much more sense now that I'm looking at the files, etc!
  14. nerdbox08
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    nerdbox08 New Member

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    Just an update: I flashed it, easy enough. Works great :)

    Thanks again!
  15. Topsy
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    Topsy New Member

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    :icon_ banana: :icon_ banana: :icon_ banana: :icon_ banana:
  16. redrandy
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    redrandy New Member

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  17. Topsy
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    Topsy New Member

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    Yes it does :)
  18. Se7enLC
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    Se7enLC New Member

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    Or if you want to use wifi at all. If you have a mismatched kernel and wifi module, the module won't load and your wifi just won't function at all.

    The update.zip files posted are the way to go - they include the kernel image, and the wifi module and can be easily installed from the recovery console (no ADB needed!) You can edit the zip file to have a different boot.img and tiwlan_drv.ko file if you want to make an installer for any other kernel as well.

    (note that most roms are using a kernel from somebody else anyway, so it is PROBABLY one of the ones listed there)
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