I have followed instructions https://wiki.ubuntu.com/ARM/ to write the image for Ubuntu 12.04. I had already done this before once in the past but with 11.10 Ubuntu sever Ed. Now I would like to write the 12.04 version because is supposed to run fine with OpenFrameworks. I have some problems with my SD-card reader also (maybe is not a very good one??) and can't follow the instructions listed, id est:
zcat ./ubuntu-12.04-preinstalled-desktop-armhf+omap4.img.gz |sudo dd bs=4M of=/dev/sdb ; sudo sync
But instead I have to use this:
sudo sh -c 'zcat ubuntu-12.04-preinstalled-desktop-armhf+omap4.img.gzz > /dev/sdb' sync
That is more comfortable because I have an output on the screen. But the problem is when I plug the SD-card into my Pandaboard and start Minicom. this is my output:
walter@walter-RC530-RC730:~/Scrivania$ sudo minicom -s
Welcome to minicom 2.5 OPTIONS: I18n Compiled on May 2 2011, 10:05:24. Port /dev/ttyUSB0 Press CTRL-A Z for help on special keys U-Boot SPL 2011.12 (Apr 02 2012 - 18:13:04) Texas Instruments OMAP4460 ES1.1 OMAP SD/MMC: 0 reading u-boot.img reading u-boot.bin mkimage signature not found - ih_magic = ea000014 Assuming u-boot.bin .. reading u-boot.bin U-Boot 2011.12 (Apr 02 2012 - 18:13:04) CPU : OMAP4460 ES1.1 Board: OMAP4 Panda I2C: ready DRAM: 1 GiB WARNING: Caches not enabled MMC: OMAP SD/MMC: 0 Using default environment In: serial Out: serial Err: serial Net: No ethernet found. checking for preEnv.txt reading preEnv.txt ** Unable to read "preEnv.txt" from mmc 0:1 ** Hit any key to stop autoboot: 0 reading uEnv.txt ** Unable to read "uEnv.txt" from mmc 0:1 ** reading boot.scr 293 bytes read Loaded script from boot.scr Running bootscript from mmc0 ... ## Executing script at 82000000 reading uImage 4434784 bytes read reading uInitrd 6608373 bytes read ## Booting kernel from Legacy Image at 80000000 ... Image Name: Ubuntu Kernel Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 4434720 Bytes = 4.2 MiB Load Address: 80008000 Entry Point: 80008000 Verifying Checksum ... OK ## Loading init Ramdisk from Legacy Image at 81600000 ... Image Name: Ubuntu Initrd Image Type: ARM Linux RAMDisk Image (gzip compressed) Data Size: 6608309 Bytes = 6.3 MiB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK Loading Kernel Image ... OK OK Starting kernel ... Uncompressing Linux... done, booting the kernel.
After those lines nothing happens .... normally should begin the customization process, but never happens. Anyone can give my advice? Honestly I did this not so many times, so maybe I forgot something or made something wrong. Maybe my SD-card reader does not work properly?
Thanks in advance