Compiling New Kernel For Raspberry Pi - Revision history

Dlk at 14:17, 31 December 2019

2019-12-31T14:17:30Z

Dlk at 18:09, 5 April 2014

2014-04-05T18:09:12Z

Dlk at 18:06, 5 April 2014

2014-04-05T18:06:33Z

Dlk: Dlk moved page Compiling New Kernel to Compiling New Kernel For Raspberry Pi without leaving a redirect

2014-04-05T17:35:54Z

Dlk moved page Compiling New Kernel to Compiling New Kernel For Raspberry Pi without leaving a redirect

Dlk at 16:45, 5 April 2014

2014-04-05T16:45:14Z

Dlk at 16:35, 5 April 2014

2014-04-05T16:35:13Z

Dlk at 16:31, 5 April 2014

2014-04-05T16:31:36Z

Dlk: Created page with " `#!/usr/bin/env sh # Cross compiling a new Raspberry Pi kernel following instructions at: # http://elinux.org/RPi_Kernel_Compilation BASE="/storage/pi" PI_HOST="dlk-..."`


2014-04-05T16:31:03Z
Created page with "<code> #!/usr/bin/env sh  #  Cross compiling a new Raspberry Pi kernel following instructions at: #  http://elinux.org/RPi_Kernel_Compilation  BASE="/storage/pi" PI_HOST="dlk-..."
New page
<code>

#!/usr/bin/env sh



#  Cross compiling a new Raspberry Pi kernel following instructions at:

#  http://elinux.org/RPi_Kernel_Compilation



BASE="/storage/pi"

PI_HOST="dlk-rspi"



if [ ! -d "$BASE" ]; then

	mkdir "$BASE"

fi



cd "$BASE"



#  "if true;" then run this command block, "if false;" then don't

if true; then

	#  Clean up from previous run

	rm -fr .git &>/dev/null

	rm -fr kernel &>/dev/null

	rm -fr tools &>/dev/null

	rm -fr modules &>/dev/null

	rm -fr firmware &>/dev/null



	#  Setup git environment

	git init

	[ 0 -ne $? ] && exit $?



	#  Get patched kernel that was supposed to fix TEAC USB DAC audio problems per

	#  http://volumio.org/forum/fixes-for-common-usb-dac-problems-with-rpi-t328.html

	#  Didn't work

	#git clone --depth 1 git://github.com/petli/linux.git -b rpi-3.10-usb-sound-backport



	#  Get the latest stable kernel source

	git clone --depth 1 git://github.com/raspberrypi/linux.git

	[ 0 -ne $? ] && exit $?

fi



KERNEL_SRC="${BASE}/linux"



#  "if true;" then download the compiler, "if false;" then don't

if true; then

	git clone git://github.com/raspberrypi/tools.git

	[ 0 -ne $? ] && exit $?

fi



if [ -d "${BASE}/tools/arm-bcm2708/arm-bcm2708-linux-gnueabi/bin" ]; then

	CCPREFIX="${BASE}/tools/arm-bcm2708/arm-bcm2708-linux-gnueabi/bin/arm-bcm2708-linux-gnueabi-"

else

	echo "CCPREFIX directory we expected does not exist, please edit script."

	exit

fi



#  "if true;" then copy .config from $PI_HOST, "if false;" then use the default .config 

if true; then

	echo "Getting /proc/config.gz from $PI_HOST"

	scp ${PI_HOST}:/proc/config.gz .

	[ 0 -ne $? ] && exit $?

	cd "$KERNEL_SRC"

	make mrproper

	[ 0 -ne $? ] && exit $?

	zcat "${BASE}/config.gz" >.config

	[ 0 -ne $? ] && exit $?

	rm -f "${BASE}/config.gz"

else

	echo "Using default config from ${KERNEL_SRC}/arch/arm/configs/bcmrpi_defconfig"

	cd "$KERNEL_SRC"

	make mrproper

	[ 0 -ne $? ] && exit $?

	cp "${KERNEL_SRC}/arch/arm/configs/bcmrpi_defconfig" .config

	[ 0 -ne $? ] && exit $?

fi



#  Configure

yes '' | ARCH=arm CROSS_COMPILE="$CCPREFIX" make oldconfig

[ 0 -ne $? ] && exit $?



#  Compile

CPU_COUNT=$(cat /proc/cpuinfo | grep -m 1 siblings | awk '{ print $3 }')

CPU_COUNT=$(( $CPU_COUNT + 1 ))

ARCH=arm CROSS_COMPILE="$CCPREFIX" make -j$CPU_COUNT 

[ 0 -ne $? ] && exit $?



#  Bundle kernel firmward and modules

mkdir "${BASE}/modules"

[ 0 -ne $? ] && exit $?

ARCH=arm CROSS_COMPILE="$CCPREFIX" INSTALL_MOD_PATH="${BASE}/modules" make -j9 modules_install

cd "${BASE}/modules/lib"

[ 0 -ne $? ] && exit $?

tar -zcvf modules.gz *

[ 0 -ne $? ] && exit $?



#  Create boot image

cd "${BASE}/tools/mkimage"

[ 0 -ne $? ] && exit $?

./imagetool-uncompressed.py "${KERNEL_SRC}/arch/arm/boot/zImage"



#  Get latest boot firmware

cd "$BASE"

git clone git://github.com/raspberrypi/firmware.git

[ 0 -ne $? ] && exit $?



#  Install everything on the target

scp "${BASE}/tools/mkimage/kernel.img" root@${PI_HOST}:/boot/

[ 0 -ne $? ] && exit $?

scp "${BASE}/modules/lib/modules.gz" root@${PI_HOST}:/var/tmp/

[ 0 -ne $? ] && exit $?

ssh root@${PI_HOST} tar -C /lib -zxvf /var/tmp/modules.gz

[ 0 -ne $? ] && exit $?

scp firmware/boot/bootcode.bin root@{PI_HOST}:/boot/

[ 0 -ne $? ] && exit $?

scp firmware/boot/fixup.dat root@{PI_HOST}:/boot/

[ 0 -ne $? ] && exit $?

scp firmware/boot/start.elf root@${PI_HOST}:/boot/

[ 0 -ne $? ] && exit $?

if $(${CCPREFIX}-gcc -v 2>&1 | grep -qe "--with-float=soft"); then

	scp -r firmware/opt/* root@${PI_HOST}:/opt/

elif $(${CCPREFIX}-gcc -v 2>&1 | grep -qe "--with-float=hard"); then

	scp -r firmware/hardfp/opt/* root@${PI_HOST}:/opt/

else

	echo "Cannot figure out which version of /opt/vc to copy over"

fi

</code>

← Older revision		Revision as of 14:17, 31 December 2019
Line 126:		Line 126:
	fi		fi
	</pre>		</pre>
		+	[[Category:Linux]]
		+	[[Category:Raspberry Pi]]

@@ Line 112: / Line 112: @@
 [ 0 -ne $? ] && exit $?
 ssh root:${PSW}@${PI_HOST} rm /var/tmp/modules.gz
-scp firmware/boot/bootcode.bin root:${PSW}@{PI_HOST}:/boot/
+scp firmware/boot/bootcode.bin root:${PSW}@${PI_HOST}:/boot/
 [ 0 -ne $? ] && exit $?
-scp firmware/boot/fixup.dat root:${PSW}@{PI_HOST}:/boot/
+scp firmware/boot/fixup.dat root:${PSW}@${PI_HOST}:/boot/
 [ 0 -ne $? ] && exit $?
 scp firmware/boot/start.elf root:${PSW}@${PI_HOST}:/boot/

@@ Line 105: / Line 105: @@
      read -sp "root password for ${PI_HOST}: " PSW
 done
-scp "${BASE}/tools/mkimage/kernel.img" root:$PSW@${PI_HOST}:/boot/
+scp "${BASE}/tools/mkimage/kernel.img" root:${PSW}@${PI_HOST}:/boot/
 [ 0 -ne $? ] && exit $?
-scp "${BASE}/modules/lib/modules.gz" root:$PSW@${PI_HOST}:/var/tmp/
+scp "${BASE}/modules/lib/modules.gz" root:${PSW}@${PI_HOST}:/var/tmp/
 [ 0 -ne $? ] && exit $?
-ssh root:$PSW@${PI_HOST} tar -C /lib -zxvf /var/tmp/modules.gz
+ssh root:${PSW}@${PI_HOST} tar -C /lib -zxvf /var/tmp/modules.gz
 [ 0 -ne $? ] && exit $?
-ssh root:$PSW@${PI_HOST} rm /var/tmp/modules.gz
+ssh root:${PSW}@${PI_HOST} rm /var/tmp/modules.gz
-scp firmware/boot/bootcode.bin root:$PSW@{PI_HOST}:/boot/
+scp firmware/boot/bootcode.bin root:${PSW}@{PI_HOST}:/boot/
 [ 0 -ne $? ] && exit $?
-scp firmware/boot/fixup.dat root:$PSW@{PI_HOST}:/boot/
+scp firmware/boot/fixup.dat root:${PSW}@{PI_HOST}:/boot/
 [ 0 -ne $? ] && exit $?
-scp firmware/boot/start.elf root:$PSW@${PI_HOST}:/boot/
+scp firmware/boot/start.elf root:${PSW}@${PI_HOST}:/boot/
 [ 0 -ne $? ] && exit $?
 if $(${CCPREFIX}-gcc -v 2>&1 | grep -qe "--with-float=soft"); then
-     scp -r firmware/opt/* root:$PSW@${PI_HOST}:/opt/
+     scp -r firmware/opt/* root:${PSW}@${PI_HOST}:/opt/
 elif $(${CCPREFIX}-gcc -v 2>&1 | grep -qe "--with-float=hard"); then
-     scp -r firmware/hardfp/opt/* root@:$PSW${PI_HOST}:/opt/
+     scp -r firmware/hardfp/opt/* root@${PSW}:${PI_HOST}:/opt/
 else
      echo "Cannot figure out which version of /opt/vc to copy over"
 fi
 </pre>

← Older revision	Revision as of 17:35, 5 April 2014
(No difference)

Compiling New Kernel For Raspberry Pi - Revision history

Dlk at 14:17, 31 December 2019

Dlk at 18:09, 5 April 2014

Dlk at 18:06, 5 April 2014

Dlk: Dlk moved page Compiling New Kernel to Compiling New Kernel For Raspberry Pi without leaving a redirect

Dlk at 16:45, 5 April 2014

Dlk at 16:35, 5 April 2014

Dlk at 16:31, 5 April 2014

Dlk: Created page with " #!/usr/bin/env sh # Cross compiling a new Raspberry Pi kernel following instructions at: # http://elinux.org/RPi_Kernel_Compilation BASE="/storage/pi" PI_HOST="dlk-..."

Dlk: Created page with " `#!/usr/bin/env sh # Cross compiling a new Raspberry Pi kernel following instructions at: # http://elinux.org/RPi_Kernel_Compilation BASE="/storage/pi" PI_HOST="dlk-..."`