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Root Boot PC from Samsung Captivate SD Card

Discussion in 'Android Devices' started by dichotomouz, Dec 30, 2010.

  1. dichotomouz

    dichotomouz Lurker
    Thread Starter

    Dec 30, 2010
    I have the following:

    • Samsung Captivate (SGH-1897)
    • Firmware 2.1-update1
    • Kernel: 2.6.29 jetaek.leesep-11 #2
    • Build number: ECLAIR
    I need to boot a computer into Ubuntu from the SD storage card while maintaining unfettered access to the Android OS/Phone.

    Is there anyway to ensure the SD Card is always available to PC? During the boot process it seems media scanner as well as timing issues are preventing this from being successful.

    Very Respectfully,


  2. sremick

    sremick Android Expert

    Jun 18, 2010
    IT Admin
    Try one of these?
    Multi Mount SD-Card Free - Android app on AppBrain
    Dual Mount SD Widget - Android app on AppBrain

    You need to be rooted though.
  3. wizdomsLizard

    wizdomsLizard Lurker

    Jan 19, 2012
    I would like to do the same, but I do not see it as an option in my bios to boot from that drive, though my phone completely unmounts the drive and is set in mass storage mode when I watch my computer go through diagnostic boot setup.

    My next task is to see if I can find the drive from grub, but would like to have grub installed on my SD card as I would like to use the phone as a standalone linux-net installer and also be able to boot linux live without another usb drive.

    The main goal is to have the phone usable with adb and proxoid so I can connect machines without recognized hardware to the internet, I somehow want all of this to setup before net install tries to retrieve anything online. It seems some hardware needs specialized drivers and this way I can do the research necessary or write a script that can find the needed drivers and install them. Also will help with machines that don't have an internet connection.


    1. Proxoid will not allow me to browse network shares.

    2 After I boot and want to connect I have to take phone out of mass
    storage mode, which means PC or Laptop will not be able to access
    the drive any longer.

    Possible solutions:

    1. share the sd card from phone over network and boot from network if
    you are hardwired to the router, not sure how this works

    2. Find a way to make android keep phone in both storage mode and
    charge mode with debugging.

    3. Load kernel and a few things from a boot usb getting adb shell and pull
    the rest of the image through there or create an image that just keeps
    a copy of the file system table and symlnk to the files via adb or
    something... Just some ideas,

    Would love to use my old phone as a complete debugging device, or as complete as I can make it.

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