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Sd ext

Discussion in 'Android Devices' started by Rally 517, Sep 16, 2011.

  1. Rally 517

    Rally 517 Android Expert
    Thread Starter

    What is sd ext? How do I know if I have it and if I dont hire do I get it

    chicho187 likes this.

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  2. cmizzle

    cmizzle Newbie

    now im not 100% on this but im pretty sure it means you sd card is formatted in FAT32 instead of ext2,ext3,or ext4 . when you make a partition formatted your partition to one of those (im not 100% which one)

    hope this is helpful
  3. hroark13

    hroark13 Android Expert
    Recognized Developer

    sd-ext is a second partition of the sd card, by default the sd card has one partition

    the sd-ext can be used by programs like link2sd or apps2sd to store some of your apps on that second partition, and free up some space in your internal memory

    if you did not parition the sd card with ClockWorkMod or some computer software, you dont have it

    an easy way to get an sd-ext partition is to use ClockWorkMod, and partition the card in the advanced menu


    When you partition your card in CWM it erases the SD card

    chicho187, fidolize and Ralphy2012 like this.
  4. Rally 517

    Rally 517 Android Expert
    Thread Starter

    How do I back up my sd card? With TB?
  5. hroark13

    hroark13 Android Expert
    Recognized Developer

    back it up to computer

    plug phone into computer and connect to usb storage and copy all files and folders to computer
    Rally 517 likes this.
  6. dogghouse050

    dogghouse050 Newbie

    what is swap size in cwm partition?
  7. new optimus

    new optimus Android Expert

    Dont use a swap partition, set it to 0 when your creating the partitions.:D
  8. Rally 517

    Rally 517 Android Expert
    Thread Starter

    Why whats it do if you dont?
  9. new optimus

    new optimus Android Expert

    Swap is to linux what virtual memory is to windows.
    the problem is on android it manages memory very well on its own it was made to not need swap but if it has it available it will use it. Swap is memory items written to the physical disk, Your sd card and that disk is much much slower then memory. So the way I read it if you have swap available android will keep things in memory and the older it will write to swap, thats good in theory but practical if it did not have swap it would just close those that are not needed, And say you decide you want to go back to that program it actually takes android longer to reactivate the swap information then it does to reopen the program from its closed state.
  10. exist2inspire

    exist2inspire Lurker

    yes but if android shuts a program your unsaved work goes away sometimes. in swap file, does the program remain in the open state? if so, id rather have swap memory than rely on android management. do you know, or can u test, if programs remain open if they are moved to android swap file?
  11. new optimus

    new optimus Android Expert

    I believe android saves unsaved work, but I dont know and no I can not test it, I dont use swap and I am no longer using the prevail.
  12. Prepaidguy9081

    Prepaidguy9081 Android Enthusiast

    Sd ext beats swap hands down

Samsung Galaxy Prevail Forum

The Samsung Galaxy Prevail release date was April 2011. Features and Specs include a 3.2" inch screen, 2MP camera, GB RAM, MSM7627-3 processor, and 1500mAh battery.

April 2011
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