EBC Exercise 08 Installing Development Tools - Revision history

Popenhjc: /* download */

2012-11-05T19:28:21Z

‎download

2012-11-05T05:36:53Z

‎reboot: we should use /dev/ttyUSB1 instead of USB0

2012-10-29T20:00:56Z

‎compile: Updated to include crossCompile.sh

2012-10-29T12:27:46Z

‎reboot

2012-10-29T03:08:36Z

‎reboot

2012-10-25T14:50:28Z

‎compile: fixed rootfs path

2012-10-22T17:29:58Z

‎download

2012-10-22T17:29:30Z

‎reboot: added

2012-10-22T17:26:13Z

‎install

2012-10-22T17:24:51Z

‎compile: Added missing steps

@@ Line 23: / Line 23: @@
   host$ '''cd ~/BeagleBoard'''
   host$ '''git clone git://github.com/beagleboard/kernel.git'''
   host$ '''git checkout 6a7c4284a16fed3dae87f4aef78b59c902e4da84 -b beaglebone-3.2'''

@@ Line 78: / Line 78: @@
 === reboot ===
 Make sure screen is running on your host so you can see the shutdown and boot processes.
-  host$ '''screen /dev/ttyUSB0 115200'''
+  host$ '''screen /dev/ttyUSB1 115200'''
-If you get an error try changing making yourself the owner of /dev/ttyUSB0.
+If you get an error try changing making yourself the owner of /dev/ttyUSB1.
-  host$ '''sudo chown ''yoder:yoder'' /dev/ttyUSB0'''
+  host$ '''sudo chown ''yoder:yoder'' /dev/ttyUSB1'''
-  host$ '''screen /dev/ttyUSB0 115200'''
+  host$ '''screen /dev/ttyUSB1 115200'''
 Then restart you beagle

@@ Line 37: / Line 37: @@
   host$ '''cd kernel'''
   host$ '''make beaglebone_defconfig'''
- host$ '''export ARCH=arm'''
+Now that you know it's working, let's compile it. First set the paths to find the cross-compiles. Put the following in a file, call it ~/.oe/'''crossCompile.sh'''.
-  host$ '''export CROSS_COMPILE=arm-linux-gnueabi-'''
 Do the above once per terminal session.

@@ Line 73: / Line 73: @@
 === reboot ===
 Make sure screen is running on your host so you can see the shutdown and boot processes.
-  host$ '''sudo screen /dev/ttyUSB0 115200
+ host$ '''screen /dev/ttyUSB0 115200'''
 Then restart you beagle

@@ Line 73: / Line 73: @@
 === reboot ===
 Make sure screen is running on your host so you can see the shutdown and boot processes.
-  host$ '''screen /dev/ttyUSB0 115200
+  host$ '''sudo screen /dev/ttyUSB0 115200
 Then restart you beagle

@@ Line 48: / Line 48: @@
 You also need all the kernel modules.  Here we create a directory to install them in. (a few seconds)
-  host$ '''mkdir rootfs'''
+  host$ '''mkdir ../rootfs'''
-  host$ '''make INSTALL_MOD_PATH=rootfs modules_install'''
+  host$ '''make INSTALL_MOD_PATH=../rootfs modules_install'''
 === install ===

@@ Line 86: / Line 86: @@
 === download ===
-While were' at it, let's get the boot loader we'll be using.  It takes some 3 minutes.
+While we're at it, let's get the boot loader we'll be using.  It takes some 3 minutes.
   host$ '''cd ~/BeagleBoard'''

@@ Line 70: / Line 70: @@
   beagle$ '''mount /dev/mmcblk0p1 /media/mmcblk0p1'''
   beagle$ '''cp /boot/uImage-3.2.25+ /media/uImage'''
 == DAS U-boot ==

@@ Line 53: / Line 53: @@
 === install ===
 Copy the kernel and the modules to the Beagle.  (a minute or so)
   host$ '''scp kernel/arch/arm/boot/uImage root@beagle:/boot/uImage-3.2.25+
   host$ '''cd rootfs'''
@@ Line 59: / Line 60: @@
 Now log into the beagle and move some things around.
   host$ '''ssh root@beagle
   beagle$ '''cd /boot'''
   beagle$ '''rm uImage'''
   beagle$ '''ln -s uImage-3.2.25+ uImage'''
   beagle$ '''mkdir /media/mmcblk0p1'''
   beagle$ '''mount /dev/mmcblk0p1 /media/mmcblk0p1'''

@@ Line 35: / Line 35: @@
 === compile ===
 Once patched you are ready to compile the kernel.  The first time takes a while.  Mine tool 4 minutes, but I was running on 8 cores.  Set the '''-j''X'' ''' to match the number of cores you have. '''uImage''' is the kernel!
   host$ '''export ARCH=arm'''
   host$ '''export CROSS_COMPILE=arm-linux-gnueabi-'''
   host$ '''make -j9'''
   host$ '''make uImage'''
 You also need all the kernel modules.  Here we create a directory to install them in. (a few seconds)