Difference between revisions of "Compiling Yantrr Vayu Drivers on Debian Wheezy"

From Yantrr Wiki
Jump to: navigation, search
(→‎4. linux kernel (~/))
(→‎USB Gadget (http access to beaglebone black over usb))
 
(30 intermediate revisions by 4 users not shown)
Line 1: Line 1:
−
Note : All steps are executed on a Ubuntu System and as a root user. We used Ubuntu 12.04 LTS. Most of the steps are exactly same as described in the [http://eewiki.net/display/linuxonarm/BeagleBone+Black BBB-RobertCNelson-Main Wiki].
+
Note : All steps are executed on the Ubuntu 12.04 LTS and as a root user. Most of the steps are similar Robert C Nelson BBB [http://eewiki.net/display/linuxonarm/BeagleBone+Black Wiki].
  
 
== Basic Requirements ==
 
== Basic Requirements ==
Line 70: Line 70:
  
 
== Linux kernel (~/) ==  
 
== Linux kernel (~/) ==  
−
We follow RobertCNelson branch of the kernel. For more details, please go to <big>[http://eewiki.net/display/linuxonarm/BeagleBone+Black BBB-RobertCNelson-Main Wiki]</big>
+
We follow RobertCNelson branch of the kernel. For more details, please go to [http://eewiki.net/display/linuxonarm/BeagleBone+Black BBB-RobertCNelson-Main Wiki]
 +
=== Git setup and Kernel Compile ===
 
<pre>
 
<pre>
 
git clone git://github.com/RobertCNelson/linux-dev.git
 
git clone git://github.com/RobertCNelson/linux-dev.git
Line 76: Line 77:
 
</pre>
 
</pre>
  
−
'''checkout v3.8.xbranch (full cape support) ''' There are other versions,check here <big>[http://eewiki.net/display/linuxonarm/BeagleBone+Black BBB-RobertCNelson-Main Wiki]</big>
+
'''checkout v3.8.xbranch (full cape support) ''' There are other versions,check here [http://eewiki.net/display/linuxonarm/BeagleBone+Black BBB-RobertCNelson-Main Wiki]
 
<pre>
 
<pre>
 
git checkout origin/am335x-v3.8 -b eewiki
 
git checkout origin/am335x-v3.8 -b eewiki
 
</pre>
 
</pre>
  
−
'''<big>Now setup the git and compile the kernel</big>'''  
+
'''Now setup the git and compile the kernel'''  
 
  <pre>
 
  <pre>
 
apt-get update
 
apt-get update
Line 90: Line 91:
 
</pre>
 
</pre>
  
−
<big>Add support of USB and PPS driver</big>
+
=== Add USB and PPS driver ===
−
LINUX_GIT is set by default(check its path in build_kernel.sh and /tools/rebuild.sh while compiling and set it to 'pwd'/linux-dev/ignore/linux-src/, so use following for later use
+
While compiling for first time, LINUX_GIT is set by default(check its path in build_kernel.sh and /tools/rebuild.sh).
 +
Set it to 'pwd'/linux-dev/ignore/linux-src/ in build_kernel.sh and /tools/rebuild.sh, so use following for later use:
 +
 
 +
<pre>
 
export LINUX_GIT='pwd'/linux-dev/ignore/linux-src/
 
export LINUX_GIT='pwd'/linux-dev/ignore/linux-src/
 +
</pre>
 +
 
Please download our USB drivers patch which is required to use the WCDMA modem on Cape.  
 
Please download our USB drivers patch which is required to use the WCDMA modem on Cape.  
 +
<pre>
 
wget wcdma_patch_vayu_usb_drivers.patch
 
wget wcdma_patch_vayu_usb_drivers.patch
−
command for applying the patch in git ( have to figure it out exactly)
+
patch -p1 < wcdma_patch_vayu_usb_drivers.patch
−
#Now rebuild the kernel  while enabling the pps drivers in makemenuconfig and after USB drivers patch applied if required.
+
</pre>
−
./tools/rebuild.sh
+
−
#Following figures illustrate how to enable the PPS drivers and also some settings in USB drivers section
+
−
i. First image shows the first screen of makemenuconfig while recompiling the kernel. Select Device drivers .
+
  
 +
Alternate to this, if patch is not applied clean, do following
  
−
ii. In the device drivers window, scroll down to select PPS support.
+
'''Locate the file option.c under: /linux/drivers/usb/serial/option.c'''
 +
Edit the file to add following
 +
* Define on top following
 +
<pre>
 +
/*  Yantrr Strongrising products */
 +
#define YANTRR_VENDOR_ID                        0x21f5
 +
#define YANTRR_PRODUCT_VAYU3G                  0x2012
 +
</pre>
 +
* Add following structure inside  static struct usb_device_id option_ids[], you would find lot of modem defined here
 +
<pre>
 +
/*  Yantrr Strongrising products */
 +
{ USB_DEVICE(YANTRR_VENDOR_ID, YANTRR_PRODUCT_VAYU3G) },
 +
</pre>
  
 +
* You may create your local patch based on kernel for next time patch
 +
* This option adding would help udev to detect the device
  
−
iii. In PPS support, select PPS client using GPIO as built-in driver. It should look like as illustrated in figure below :
+
=== Rebuild kernel ===
 +
Now rebuild the kernel while enabling the pps drivers in makemenuconfig and after USB drivers patch applied.
 +
<pre>
 +
./tools/rebuild.sh
 +
</pre>
  
 +
*Following figures illustrate how to enable the PPS drivers and also some settings in USB drivers section
 +
:* First image shows the first screen of makemenuconfig while recompiling the kernel. Select Device drivers .
 +
[[File:First Image for makemenuconfig.png|center|border | Select device drivers]]
  
 +
:* In the device drivers window, scroll down to select PPS support.
 +
[[File:Second Image for makemenuconfig.png|center|border | Select PPS support]]
  
−
iv. Exit PPS Support and select USB support and ensure that EHCI HCD (USB2.0) support is enabled. Please match other options too from the figure illustrated below :
+
:* In PPS support, select PPS client using GPIO as built-in driver. It should look like as illustrated in figure below :
 +
[[File:Third Image for makemenuconfig.png|center|border | Select PPS client using GPIO]]
  
−
#at the end of compilation , copy and paste the line with kernel_version, which is as follows
+
:* Exit PPS Support and select USB support  and ensure that EHCI HCD (USB2.0) support is enabled. Please match other options too from the figure illustrated below :
−
export kernel_version=3.X.Y-Z          ( in our case 3.8.13-bone36)
+
[[File:Fourth Image for makemenuconfig.png|center|border|900px | USB Support]]
  
−
#Root file system (~/)
+
 
−
#Download and extract the minimal root file system for debian wheezy :
+
At the end of compilation , copy and paste the line with kernel_version, which is as follows
 +
<pre>
 +
export kernel_version=3.X.Y-Z          ( in our case 3.8.13-bone32)
 +
</pre>
 +
 
 +
== Root file system (~/)==
 +
Download and extract the minimal root file system for debian wheezy :
 +
<pre>
 
wget -c https://rcn-ee.net//deb/minfs/wheezy/debian-7.3-minimal-armhf-2013-12-18.tar.xz
 
wget -c https://rcn-ee.net//deb/minfs/wheezy/debian-7.3-minimal-armhf-2013-12-18.tar.xz
 
md5sum debian-7.3-minimal-armhf-2013-12-18.tar.xz
 
md5sum debian-7.3-minimal-armhf-2013-12-18.tar.xz
 
tar xf debian-7.3-minimal-armhf-2013-12-18.tar.xz
 
tar xf debian-7.3-minimal-armhf-2013-12-18.tar.xz
 +
</pre>
  
−
#Setup MicroSD card (as root)
+
== Setup MicroSD card (as root)==
−
#Attach a microSD card of size atleast 2GB to the desktop with the help of a card reader
+
=== Format and prepare a microSD card ===
−
#use lsblk to determine device id of sd card , it is either /dev/mmcblkx or /dev/sdx , so supposedly :
+
Attach a microSD card of size atleast 2GB to the desktop with the help of a card reader.
 +
 
 +
Use lsblk to determine device id of sd card , it is either /dev/mmcblkx or /dev/sdx , so supposedly :
 +
<pre>
 
export DISK=/dev/mmcblk0
 
export DISK=/dev/mmcblk0
 
dd if=/dev/zero of=${DISK} bs=1M
 
dd if=/dev/zero of=${DISK} bs=1M
Line 130: Line 170:
 
__EOF__
 
__EOF__
 
dd if=/dev/zero of=${DISK} bs=512 count=1
 
dd if=/dev/zero of=${DISK} bs=512 count=1
−
#format partitions, for DISK=/dev/mmcblk0
+
</pre>
 +
 
 +
Format partitions, for DISK=/dev/mmcblk0
 +
<pre>
 
mkfs.vfat -F 16 ${DISK}p1 -n boot
 
mkfs.vfat -F 16 ${DISK}p1 -n boot
 
mkfs.ext4 ${DISK}p2 -L rootfs
 
mkfs.ext4 ${DISK}p2 -L rootfs
−
#or for DISK=/dev/sdX
+
</pre>
 +
Or for DISK=/dev/sdX
 +
<pre>
 
mkfs.vfat -F 16 ${DISK}1 -n boot
 
mkfs.vfat -F 16 ${DISK}1 -n boot
 
mkfs.ext4 ${DISK}2 -L rootfs
 
mkfs.ext4 ${DISK}2 -L rootfs
−
#mount paths may vary, sometimes they are auto mounted, otherwise do following
+
</pre>
 +
 
 +
After formatting, mount the partitions. Mount paths may vary, sometimes they are auto mounted, otherwise do following
 +
<pre>
 
mkdir -p /media/boot/
 
mkdir -p /media/boot/
 
mkdir -p /media/rootfs/
 
mkdir -p /media/rootfs/
 
mount ${DISK}p1 /media/boot/        or mount ${DISK}1 /media/boot/
 
mount ${DISK}p1 /media/boot/        or mount ${DISK}1 /media/boot/
 
mount ${DISK}p2 /media/rootfs/      or mount ${DISK}2 /media/rootfs/
 
mount ${DISK}p2 /media/rootfs/      or mount ${DISK}2 /media/rootfs/
−
#install bootloader (~/)
+
</pre>
 +
 
 +
=== Install Bootloader ===
 +
 
 +
Now, Install bootloader by executing following commands (~/) :
 +
<pre>
 
cp -v ./u-boot/MLO  /media/boo t/
 
cp -v ./u-boot/MLO  /media/boo t/
 
cp -v ./u-boot/u-boot.img  /media/boot/
 
cp -v ./u-boot/u-boot.img  /media/boot/
 +
</pre>
  
−
#Create “uEnv.txt” boot script  and copy following in it: (nano uEnv.txt)
+
Then, create “uEnv.txt” boot script  and copy following in it: (nano uEnv.txt)
 +
<pre>
 
#u-boot eMMC specific overrides; Angstrom Distribution (BeagleBone Black) 2013-06-20
 
#u-boot eMMC specific overrides; Angstrom Distribution (BeagleBone Black) 2013-06-20
 
kernel_file=zImage
 
kernel_file=zImage
Line 173: Line 228:
 
#boot_fdt=run loadzimage; run loadinitrd; run loadfdt
 
#boot_fdt=run loadzimage; run loadinitrd; run loadfdt
 
#uenvcmd=run boot_fdt; run mmcargs; bootz ${loadaddr} 0x81000000:${initrd_size} ${fdtaddr}
 
#uenvcmd=run boot_fdt; run mmcargs; bootz ${loadaddr} 0x81000000:${initrd_size} ${fdtaddr}
−
+
</pre>
 +
 
 +
<pre>
 
cp -v ./uEnv.txt  /media/boot/
 
cp -v ./uEnv.txt  /media/boot/
 +
</pre>
  
−
#Install Kernel and root file system
+
=== Install Kernel and Root file system ===
−
#copy root file system (~/)
+
 
 +
 
 +
Now, we have to Install Kernel and root file system
 +
 
 +
'''Copy root file system (~/)'''
 +
<pre>
 
tar xfvp ./*-*-*-armhf-*/armhf-rootfs-*.tar -C /media/rootfs/
 
tar xfvp ./*-*-*-armhf-*/armhf-rootfs-*.tar -C /media/rootfs/
−
#copy kernel files
+
</pre>
 +
 
 +
'''Copy kernel files'''
 +
<pre>
 
cp -v ./linux-dev/deploy/${kernel_version}.zImage /media/boot/zImage
 
cp -v ./linux-dev/deploy/${kernel_version}.zImage /media/boot/zImage
 
mkdir -p /media/boot/dtbs/
 
mkdir -p /media/boot/dtbs/
Line 185: Line 251:
 
tar xfv ./linux-dev/deploy/${kernel_version}-firmware.tar.gz -C /media/rootfs/lib/firmware
 
tar xfv ./linux-dev/deploy/${kernel_version}-firmware.tar.gz -C /media/rootfs/lib/firmware
 
tar xfv ./linux-dev/deploy/${kernel_version}-modules.tar.gz -C /media/rootfs/
 
tar xfv ./linux-dev/deploy/${kernel_version}-modules.tar.gz -C /media/rootfs/
−
#file systems table, edit /etc/fstab
+
</pre>
 +
 
 +
'''Make a File systems table'''
 +
 
 +
edit /etc/fstab:
 +
<pre>
 
nano /media/rootfs/etc/fstab
 
nano /media/rootfs/etc/fstab
−
#and copy following
+
</pre>
 +
and copy following
 +
<pre>
 
/dev/mmcblk0p2 / auto errors=remount-ro 0 1
 
/dev/mmcblk0p2 / auto errors=remount-ro 0 1
 
/dev/mmcblk0p1 /boot/uboot auto defaults 0 2
 
/dev/mmcblk0p1 /boot/uboot auto defaults 0 2
−
#networking , edit /etc/network/interfaces
+
</pre>
 +
 
 +
'''Networking'''
 +
 
 +
edit /etc/network/interfaces
 +
<pre>
 
nano /media/rootfs/etc/network/interfaces
 
nano /media/rootfs/etc/network/interfaces
−
#and copy following
+
</pre>
 +
 
 +
and copy following (fixed ip)
 +
<pre>
 
auto lo
 
auto lo
 
iface lo inet loopback
 
iface lo inet loopback
Line 202: Line 283:
 
     network 192.168.1.0
 
     network 192.168.1.0
 
     gateway 192.168.1.1
 
     gateway 192.168.1.1
−
#networking: using a shared sd card with multiple beaglebone
+
</pre>
 +
 
 +
'''Networking: using a shared sd card with multiple beaglebone'''
 +
<pre>
 
nano /media/rootfs/etc/udev/rules.d/70-persistent-net.rules
 
nano /media/rootfs/etc/udev/rules.d/70-persistent-net.rules
−
#and copy following
+
</pre>
 +
 
 +
and copy following
 +
<pre>
 
# BeagleBone: net device ()
 
# BeagleBone: net device ()
 
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
 
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
−
#for enabling serial login to system
+
</pre>
 +
 
 +
'''Enable serial login to system'''
 +
<pre>
 
nano /media/rootfs/etc/inittab
 
nano /media/rootfs/etc/inittab
−
#and copy following at the end of inittab
+
</pre>
 +
 
 +
and copy following at the end of inittab
 +
<pre>
 
T0:23:respawn:/sbin/getty -L ttyO0 115200 vt102
 
T0:23:respawn:/sbin/getty -L ttyO0 115200 vt102
−
#Remove microsd card
+
</pre>
 +
 
 +
'''Remove microsd card'''
 +
<pre>
 
sync
 
sync
 
umount /media/boot/
 
umount /media/boot/
 
umount /media/rootfs/
 
umount /media/rootfs/
 +
</pre>
 +
 +
==Extras==
 +
 +
=== USB Gadget (http access to beaglebone black over usb)===
 +
'''Run beaglebone black with the created sd card and then do the following in it over eth0 ssh'''
 +
<pre>
 +
apt-get install udhcpd
 +
</pre>
 +
 +
Edit the file at /etc/default/udhcpd for enabling udhcpd
  
−
#Extras
+
'''Edit /etc/network/interfaces to add following at the end'''
−
#usb gadget (http access to beaglebone black over usb)
+
<pre>
−
#run beaglebone black with the created sd card and then do the following in it over eth0 ssh
+
Ethernet/RNDIS gadget (g_ether)
−
apt-get install udhcpd
+
... or on host side, usbnet and random hwaddr
−
# and edit the file at /etc/default/udhcpd for enabling udhcpd
+
−
#and edit /etc/network/interfaces to add following at the end
+
−
# Ethernet/RNDIS gadget (g_ether)
+
−
# ... or on host side, usbnet and random hwaddr
+
 
iface usb0 inet static
 
iface usb0 inet static
 
     address 192.168.7.2
 
     address 192.168.7.2
Line 229: Line 332:
 
     network 192.168.7.0
 
     network 192.168.7.0
 
     gateway 192.168.7.1
 
     gateway 192.168.7.1
−
#and use the following temp script
+
</pre>
−
wget -c https://raw.github.com/RobertCNelson/tools/master/scripts/beaglebone-black-g-ether-load.sh
+
−
chmod +x beaglebone-black-g-ether-load.sh
+
−
sudo ./beaglebone-black-g-ether-load.sh
+
  
−
#to enable/disable HDMI or eMMC or LCD
 
−
#edit the uEnv.txt and comment/uncomment the line corresponding to this appropriately
 
  
−
#to boot from eMMC
+
'''Other scripts are also there, they can be found here : '''
−
# we have to boot with an init filesystem so edit the uEnv.txt and comment out zImage commands and uncomment zImage+uInitrd boot commands.
+
−
#then use scripts to copy microSD to eMMC
+
−
wget -c https://raw.github.com/RobetCNelson/tools/master/scripts/beaglebone-black-copy-microSD-to-eMMC.sh
+
−
chmod +x beaglebone-black-copy-microSD-to-eMMC.sh
+
−
sudo ./beaglebone-black-copy-microSD-to-eMMC.sh
+
  
−
#script to just update the boot partition of the eMMC
 
−
wget -c https://raw.github.com/RobertCNelson/tools/master/scripts/beaglebone-black-just-copy-boot-to-eMMC.sh
 
−
chmod +x beaglebone-black-just-copy-boot-to-eMMC.sh
 
−
sudo ./beaglebone-black-just-copy-boot-to-eMMC.sh
 
−
 
−
#other scripts are also there, they can be found here :
 
 
https://raw.github.com/RobertCNelson/tools/master/scripts/
 
https://raw.github.com/RobertCNelson/tools/master/scripts/
−
#Note : These steps are publicly available here : http://eewiki.net/display/linuxonarm/BeagleBone+Black
+
 
 +
Note : These steps are publicly available here : http://eewiki.net/display/linuxonarm/BeagleBone+Black
 +
 
 
Please check the above link for any updates.
 
Please check the above link for any updates.

Latest revision as of 04:28, 24 June 2015

Note : All steps are executed on the Ubuntu 12.04 LTS and as a root user. Most of the steps are similar Robert C Nelson BBB Wiki.

Basic Requirements

ARM cross compiler linaro gcc (~/)

Download and extract the ARM Cross compiler linaro gcc . Supposedly we mark that directory as root (~/) 

wget -c https://launchpad.net/linaro-toolchain-binaries/trunk/2013.10/+download/gcc-linaro-arm-linux-gnueabihf-4.8-2013.10_linux.tar.xz
tar xJf gcc-linaro-arm-linux-gnueabihf-4.8-2013.10_linux.tar.xz
export CC='pwd'/gcc-linaro-arm-linux-gnueabihf-4.8-2013.10_linux/bin/arm-linux-gnueabihf-

Test the version of the gcc path set above to verify it will work 

${CC}gcc –version
arm-linux-gnueabihf-gcc (crosstool-NG linaro-1.13.1-4.8-2013.10 - Linaro GCC 2013.10) 4.8.2 20131014 (prerelease)
Copyright (C) 2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

if the above test fails, verify that you have 32bit libraries installed on your development system , and execute following : 

 apt-get install lbs
 apt-get install ia32-libs

Bootloader U-boot (~/)

Bootloader used is Das U-Boot, and its works like charm. Das U-Boot -- the Universal Boot Loader http://www.denx.de/wiki/U-Boot

Download: 

~/
git clone git://git.denx.de/u-boot.git
cd u-boot/
git checkout v2013.10 -b tmp

Patches: After cloning git takes you to the u-boot directory of the working directory, else go to the u-boot directory 

~/u-boot
wget https://raw.github.com/eewiki/u-boot-patches/master/v2013.10/0001-am335x_evm-uEnv.txt-bootz-n-fixes.patch
patch -p1 < 0001-am335x_evm-uEnv.txt-bootz-n-fixes.patch

Configure and Build: 

~/u-boot
make ARCH=arm CROSS_COMPILE=${CC} distclean
make ARCH=arm CROSS_COMPILE=${CC} am335x_evm_config
make ARCH=arm CROSS_COMPILE=${CC}

Upgrade distro "device-tree-compiler" package

 (~/) {In the working directory}
wget -c https://raw.github.com/RobertCNelson/tools/master/pkgs/dtc.sh
chmod +x dtc.sh
./dtc.sh

Linux kernel (~/)

We follow RobertCNelson branch of the kernel. For more details, please go to BBB-RobertCNelson-Main Wiki

Git setup and Kernel Compile

git clone git://github.com/RobertCNelson/linux-dev.git
cd linux-dev/

checkout v3.8.xbranch (full cape support) There are other versions,check here BBB-RobertCNelson-Main Wiki 

git checkout origin/am335x-v3.8 -b eewiki

Now setup the git and compile the kernel 

apt-get update
apt-get install device-tree-compiler lzma lzop u-boot-tools libncurses5-dev
git config --global user.name "username"
git config --global user.email "useremailid"
./build_kernel.sh

Add USB and PPS driver

While compiling for first time, LINUX_GIT is set by default(check its path in build_kernel.sh and /tools/rebuild.sh). Set it to 'pwd'/linux-dev/ignore/linux-src/ in build_kernel.sh and /tools/rebuild.sh, so use following for later use: 

export LINUX_GIT='pwd'/linux-dev/ignore/linux-src/

Please download our USB drivers patch which is required to use the WCDMA modem on Cape. 

wget wcdma_patch_vayu_usb_drivers.patch
patch -p1 < wcdma_patch_vayu_usb_drivers.patch

Alternate to this, if patch is not applied clean, do following

Locate the file option.c under: /linux/drivers/usb/serial/option.c Edit the file to add following

  • Define on top following
 /*  Yantrr Strongrising products */
#define YANTRR_VENDOR_ID                         0x21f5
#define YANTRR_PRODUCT_VAYU3G                   0x2012
  • Add following structure inside static struct usb_device_id option_ids[], you would find lot of modem defined here
 /*  Yantrr Strongrising products */
 { USB_DEVICE(YANTRR_VENDOR_ID, YANTRR_PRODUCT_VAYU3G) },
  • You may create your local patch based on kernel for next time patch
  • This option adding would help udev to detect the device

Rebuild kernel

Now rebuild the kernel while enabling the pps drivers in makemenuconfig and after USB drivers patch applied. 

./tools/rebuild.sh
  • Following figures illustrate how to enable the PPS drivers and also some settings in USB drivers section
  • First image shows the first screen of makemenuconfig while recompiling the kernel. Select Device drivers .
Select device drivers
  • In the device drivers window, scroll down to select PPS support.
Select PPS support
  • In PPS support, select PPS client using GPIO as built-in driver. It should look like as illustrated in figure below :
Select PPS client using GPIO
  • Exit PPS Support and select USB support and ensure that EHCI HCD (USB2.0) support is enabled. Please match other options too from the figure illustrated below :
USB Support


At the end of compilation , copy and paste the line with kernel_version, which is as follows 

export kernel_version=3.X.Y-Z          ( in our case 3.8.13-bone32)

Root file system (~/)

Download and extract the minimal root file system for debian wheezy : 

wget -c https://rcn-ee.net//deb/minfs/wheezy/debian-7.3-minimal-armhf-2013-12-18.tar.xz
md5sum debian-7.3-minimal-armhf-2013-12-18.tar.xz
tar xf debian-7.3-minimal-armhf-2013-12-18.tar.xz

Setup MicroSD card (as root)

Format and prepare a microSD card

Attach a microSD card of size atleast 2GB to the desktop with the help of a card reader.

Use lsblk to determine device id of sd card , it is either /dev/mmcblkx or /dev/sdx , so supposedly : 

export DISK=/dev/mmcblk0
dd if=/dev/zero of=${DISK} bs=1M
sfdisk --in-order --Linux --unit M ${DISK} <<-__EOF__
1,48,0xE,*
,,,-
__EOF__
dd if=/dev/zero of=${DISK} bs=512 count=1

Format partitions, for DISK=/dev/mmcblk0 

mkfs.vfat -F 16 ${DISK}p1 -n boot
mkfs.ext4 ${DISK}p2 -L rootfs

Or for DISK=/dev/sdX 

mkfs.vfat -F 16 ${DISK}1 -n boot
mkfs.ext4 ${DISK}2 -L rootfs

After formatting, mount the partitions. Mount paths may vary, sometimes they are auto mounted, otherwise do following 

mkdir -p /media/boot/
mkdir -p /media/rootfs/
mount ${DISK}p1 /media/boot/        or mount ${DISK}1 /media/boot/
mount ${DISK}p2 /media/rootfs/      or mount ${DISK}2 /media/rootfs/

Install Bootloader

Now, Install bootloader by executing following commands (~/) : 

cp -v ./u-boot/MLO  /media/boo	t/
cp -v ./u-boot/u-boot.img  /media/boot/

Then, create “uEnv.txt” boot script and copy following in it: (nano uEnv.txt) 

#u-boot eMMC specific overrides; Angstrom Distribution (BeagleBone Black) 2013-06-20
kernel_file=zImage
initrd_file=uInitrd

loadzimage=load mmc ${mmcdev}:${mmcpart} ${loadaddr} ${kernel_file}
loadinitrd=load mmc ${mmcdev}:${mmcpart} 0x81000000 ${initrd_file}; setenv initrd_size ${filesize}
loadfdt=load mmc ${mmcdev}:${mmcpart} ${fdtaddr} /dtbs/${fdtfile}
#

console=ttyO0,115200n8
mmcroot=/dev/mmcblk0p2 rw
mmcrootfstype=ext4 rootwait fixrtc

##To disable HDMI/eMMC...
#optargs=capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN,BB-BONE-EMMC-2G

##3.1MP Camera Cape
#optargs=capemgr.disable_partno=BB-BONE-EMMC-2G

mmcargs=setenv bootargs console=${console} root=${mmcroot} rootfstype=${mmcrootfstype} ${optargs}

#zImage:
uenvcmd=run loadzimage; run loadfdt; run mmcargs; bootz ${loadaddr} - ${fdtaddr}

#zImage + uInitrd: where uInitrd has to be generated on the running system.
#boot_fdt=run loadzimage; run loadinitrd; run loadfdt
#uenvcmd=run boot_fdt; run mmcargs; bootz ${loadaddr} 0x81000000:${initrd_size} ${fdtaddr}

 
cp -v ./uEnv.txt  /media/boot/

Install Kernel and Root file system

Now, we have to Install Kernel and root file system

Copy root file system (~/) 

tar xfvp ./*-*-*-armhf-*/armhf-rootfs-*.tar -C /media/rootfs/

Copy kernel files 

cp -v ./linux-dev/deploy/${kernel_version}.zImage /media/boot/zImage
mkdir -p /media/boot/dtbs/
tar xfov ./linux-dev/deploy/${kernel_version}-dtbs.tar.gz -C /media/boot/dtbs/
tar xfv ./linux-dev/deploy/${kernel_version}-firmware.tar.gz -C /media/rootfs/lib/firmware
tar xfv ./linux-dev/deploy/${kernel_version}-modules.tar.gz -C /media/rootfs/

Make a File systems table

edit /etc/fstab: 

nano /media/rootfs/etc/fstab

and copy following 

/dev/mmcblk0p2	/		auto	errors=remount-ro	0	1
/dev/mmcblk0p1	/boot/uboot	auto	defaults		0	2

Networking

edit /etc/network/interfaces 

nano /media/rootfs/etc/network/interfaces

and copy following (fixed ip) 

auto lo
iface lo inet loopback
auto eth0
#iface eth0 inet dhcp
iface eth0 inet static
    address 192.168.1.150
    netmask 255.255.255.0
    network 192.168.1.0
    gateway 192.168.1.1

Networking: using a shared sd card with multiple beaglebone 

nano /media/rootfs/etc/udev/rules.d/70-persistent-net.rules

and copy following 

# BeagleBone: net device ()
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"

Enable serial login to system 

nano /media/rootfs/etc/inittab

and copy following at the end of inittab 

T0:23:respawn:/sbin/getty -L ttyO0 115200 vt102

Remove microsd card 

sync
umount /media/boot/
umount /media/rootfs/

Extras

USB Gadget (http access to beaglebone black over usb)

Run beaglebone black with the created sd card and then do the following in it over eth0 ssh 

 apt-get install udhcpd

Edit the file at /etc/default/udhcpd for enabling udhcpd

Edit /etc/network/interfaces to add following at the end 

 
Ethernet/RNDIS gadget (g_ether)
... or on host side, usbnet and random hwaddr
iface usb0 inet static
    address 192.168.7.2
    netmask 255.255.255.0
    network 192.168.7.0
    gateway 192.168.7.1


Other scripts are also there, they can be found here :

https://raw.github.com/RobertCNelson/tools/master/scripts/

Note : These steps are publicly available here : http://eewiki.net/display/linuxonarm/BeagleBone+Black

Please check the above link for any updates.

Retrieved from "http://wiki.yantrr.com/index.php?title=Compiling_Yantrr_Vayu_Drivers_on_Debian_Wheezy&oldid=601"