Creating a bootable SD card - 0.8.0-alpha release

This is where you talk about the EV3 software itself, installation issues, and programming talk.

Moderators: roger, gloomyandy, skoehler

Creating a bootable SD card - 0.8.0-alpha release

Postby cyjohnson » Mon Apr 14, 2014 3:54 pm

Hi,

I followed the instructions on the wiki, but on boot-up from the SD card it gets to the "leJOS EV3" screen, but nothing happens after that. I waited an hour.

What am I doing wrong? :wink:

Setup:
I am using Windows 8.1, with EV3 firmware version 1.03. Using micro 16G SD HC Card. I do not have a wireless dongle. The SD card is FAT32 in each case below.

* First time
    -- Followed wiki instruction by deleting all files, then unzipping files from "lejosimage.zip" and copying "ejre-7u51-fcs-b13-linux-arm-sflt-headless-18_dec_2013.gz" to SD Card.
    -- Insert card, and power up EV3. Only displays "leJOS EV3" for an hour.
* Second time
    -- Delete all files
    -- Use the ImageWriter program, and write the image inside the "sd500.img" to the SD card.
    -- Insert card, and power up EV3. Only displays "leJOS EV3" for 30 minutes.
* 3rd time
    -- Delete all files.
    -- Use pre-released ev3tool "EV3SDCard", version 0.8.0-alpha aab4647, to program SD card.
    ---> Complains that I have 1 file. Turns out that Windows 8 makes a directory that isn't even displayed when "show hidden files" is selected.
    This directory is called "System Volume Information" on the SD Drive (in this case, my "I:" drive).
    1) Open command prompt as admin, and go to the drive with SD Card, which is "I:" by typing "I:"
    2) Use del /S /q "I:\System Volume Information" to delete the files
    3) Use rmdir /s /q "I:\System Volume Information" to delete the directory
    4) Verify it is gone with attrib /A
    5) FYI, if you insert the card back into winows, it recreates the "System Volume Information" directory.
    -- Run "EV3SDCard" again, this time with no complaints.
    -- The following directory structure is created:
    Code: Select all
    I:\>dir /A
     Volume in drive I is SD500
     Volume Serial Number is 4F3C-FBD7

     Directory of I:\

    04/14/2014  12:44 AM    <DIR>          lejos
    04/14/2014  12:44 AM        13,731,541 lejosimage.bz2
    04/14/2014  12:44 AM         9,338,332 uImage
    04/14/2014  12:44 AM         2,000,072 uImageStandard
    04/14/2014  12:44 AM                12 version
    04/14/2014  12:45 AM        33,430,777 ejre-7u51-fcs-b13-linux-arm-sflt-headless
    -18_dec_2013.gz
                   5 File(s)     58,500,734 bytes
                   1 Dir(s)  15,971,647,488 bytes free

    -- Insert card, and power up EV3. Only displays "leJOS EV3" for 30 minutes.
cyjohnson
New User
 
Posts: 3
Joined: Mon Apr 14, 2014 3:00 pm

Re: Creating a bootable SD card - 0.8.0-alpha release

Postby gloomyandy » Mon Apr 14, 2014 5:07 pm

No idea what is causing this. Have never seen it with the 5 or 6 cards I have tried (on two different EV3s), not have any other users reported this problem. All I can suggest is that you try again with a different SD card. Looking at the raspberry forums it is not unusual for some SD cards to simply not work when running Linux.
User avatar
gloomyandy
leJOS Team Member
 
Posts: 4083
Joined: Fri Sep 28, 2007 2:06 pm
Location: UK

Re: Creating a bootable SD card - 0.8.0-alpha release

Postby cyjohnson » Sat Apr 19, 2014 5:31 am

Thanks. I bought a new SD card, and that one works.

For anybody listening, after the "leJOS EV3" screen appears, you should get a status update below that almost immediately. Mine never displayed any status.
cyjohnson
New User
 
Posts: 3
Joined: Mon Apr 14, 2014 3:00 pm


Return to EV3 Software

Who is online

Users browsing this forum: No registered users and 0 guests

more stuff