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[ExM] #2 First attempt on the Atmel SAMA5D4, installing JAVA

nikil511

Following instructions  Atmel SAMA5D4 Xplained Ultra Road Test -- Day 3

I installed the USB driver, and hooked my SAM to the USB of a windows machine, connected with putty....and... hello there! image

Note that I did not have to change flow control to "none", just changed speed to 115200 and set correct port.

"root" account is without password. Had a look around, by running:

uname -a

Linux sama5d4-xplained 3.10.0-custom #1 Thu Oct 30 16:04:45 CST 2014 armv7l GNU/

cat /etc/issue

    Poky (Yocto Project Reference Distro) 1.6.1

cat /proc/version

    Linux version 3.10.0-custom (josh@melon) (gcc version 4.8.2 (GCC) ) #1 Thu Oct 30 16:04:45 CST 2014

df -h

Filesystem      Size  Used Avail Use% Mounted on

rootfs          446M  100M  347M  23% /

ubi0:rootfs    446M  100M  347M  23% /

devtmpfs        251M    0  251M  0% /dev

tmpfs          251M  72K  251M  1% /run

tmpfs          251M  108K  251M  1% /var/volatile

 

top

top - 09:14:38 up 51 min,  1 user,  load average: 0.08, 0.03, 0.05

Tasks:  39 total,  1 running,  38 sleeping,  0 stopped,  0 zombie

Cpu(s):  0.3%us,  0.3%sy,  0.0%ni, 98.7%id,  0.0%wa,  0.0%hi,  0.7%si,  0.0%st

Mem:    513976k total,    25240k used,  488736k free,        0k buffers

Swap:        0k total,        0k used,        0k free,    11776k cached

 

opkg list|grep java

    but got nothing back image

 

Did a quick search, and came up with this:

https://software.intel.com/en-us/blogs/2014/04/04/some-hints-on-yocto-builds-for-iot-devkit-example-adding-java-jre

It's for Intel(R) Galileo board, but it's also using Yocto. This gave me a hint, that I need to specify a source url for /etc/opkg/opkg.conf but is there one that we could use ?


So I guess that means, I will have to install Java manually, or the normal (atmel) approach must be to build a different image with the distro of choice (i.e. debian) and inherit the support/repos/etc.

As a quick and dirty test, I tried the following:

wget http://ftp.heanet.ie/mirrors/funtoo/distfiles/oracle-java/jdk-7u60-linux-arm-vfp-hflt.tar.gz

                          (Oracle requires "I agree" ticks, so I did a search and found a random mirror for direct download)

mkdir /java

tar xzf jdk-7u60-linux-arm-vfp-hflt.tar.gz

export JAVA_HOME=/java/jdk1.7.0_60/jre/

java -version


     java version "1.7.0_60"

     Java(TM) SE Runtime Environment (build 1.7.0_60-b19)

     Java HotSpot(TM) Client VM (build 24.60-b09, mixed mode)

 

..that went smooth image

 

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