Apc8750 - Revision history

Gv: /* Installing Slackware on APC-8750 */

2014-08-09T06:33:30Z

Installing Slackware on APC-8750

← Older revision		Revision as of 06:33, 9 August 2014
Line 4:		Line 4:

	[https://sourceforge.net/p/slackwareonapc8750 Project Area]		[https://sourceforge.net/p/slackwareonapc8750 Project Area]

			[http://sourceforge.net/p/slackwareonapc8750/wiki/Home/ wiki @ sourceforge] Check this for latest updates

			[http://sourceforge.net/p/slackwareonapc8750/code/ helper scripts] / [https://github.com/gv1/apc8750 helper scripts]

	Mainline Linux kernel lacks support for [http://www.wondermedia.com.tw/en/products/platform/soc/wm8750/ Wondermedia WM 8750] currently. However [https://github.com/linux-wmt/linux-vtwm linux-vtwm-testing] kernel available at github has support for Wondermedia 8750 SOC. Since the kernel failed to load initrd cpio archive the normal way, a special method was used for loading the Slackware setup image. ( Installer Kernel booting from embedded initramfs image creates a filesystem on ramdisk, extracts Slackware setup initrd image and chroots to the filesystem on ramdisk ). Briefly, the steps followed in installing Slackware on APC 8750 are :		Mainline Linux kernel lacks support for [http://www.wondermedia.com.tw/en/products/platform/soc/wm8750/ Wondermedia WM 8750] currently. However [https://github.com/linux-wmt/linux-vtwm linux-vtwm-testing] kernel available at github has support for Wondermedia 8750 SOC. Since the kernel failed to load initrd cpio archive the normal way, a special method was used for loading the Slackware setup image. ( Installer Kernel booting from embedded initramfs image creates a filesystem on ramdisk, extracts Slackware setup initrd image and chroots to the filesystem on ramdisk ). Briefly, the steps followed in installing Slackware on APC 8750 are :

Gv: /* Additional info */

2014-08-07T08:22:11Z

Additional info

← Older revision		Revision as of 08:22, 7 August 2014
Line 199:		Line 199:
	-e 0x8000 -n "My Linux" -d $1/$2/zImage_w_dtb $1/$2/uzImage.bin</pre>		-e 0x8000 -n "My Linux" -d $1/$2/zImage_w_dtb $1/$2/uzImage.bin</pre>
	=== Additional info ===		=== Additional info ===
			From Slackware-14.1 boot messages:

			<pre>Linux version 3.13.0-rc8 (ahoh@tampa) (gcc version 4.8.3 20140320 (prerelease) (Sourcery CodeBench Lite 2014.05-28) ) #23 Mon Aug 4 07 :40:48 IST 2014
			Kernel command line: mem=460M root=/dev/mmcblk0p2 rootwait nonitrd ro console=tty0</pre>

	From original boot messages on ttyS0:		From original boot messages on ttyS0:

	<pre>~~Kernel command line: mem=460M root=/dev/mtdblock11 noinitrd rootfstype=yaffs2 rw console=ttyS0,115200n8 mbtotal=52M init=/init~~		<pre>Linux version 2.6.32.9-default (root@Ryan-VM-Ubuntu) (gcc version 4.5.2 (Sourcery G++ Lite 2011.03-41) ) #1 Wed Dec 5 19:29:52 CST 2012
	Linux version 2.6.32.9-default (root@Ryan-VM-Ubuntu) (gcc version 4.5.2 (Sourcery G++ Lite 2011.03-41) ) #1 Wed Dec 5 19:29:52 CST 2012		Kernel command line: mem=460M root=/dev/mtdblock11 noinitrd rootfstype=yaffs2 rw console=ttyS0,115200n8 mbtotal=52M init=/init
	CPU: ARMv6-compatible processor [410fb767] revision 7 (ARMv7), cr=00c5387f		CPU: ARMv6-compatible processor [410fb767] revision 7 (ARMv7), cr=00c5387f
	...		...

Gv at 07:37, 7 August 2014

2014-08-07T07:37:54Z

Show changes

Gv: /* links */

2014-08-04T03:11:36Z

links

← Older revision		Revision as of 03:11, 4 August 2014
Line 225:		Line 225:
	http://ftp.arm.slackware.com/slackwarearm/		http://ftp.arm.slackware.com/slackwarearm/

	~~https~~://~~github~~.~~com~~/~~gv1~~/~~apc8750~~		http://sourceforge.net/projects/slackwareonapc8750/files/

			http://sourceforge.net/projects/slackwareonapc8750/files/initrd-kirkwood.cpio.gz/download

			http://sourceforge.net/projects/slackwareonapc8750/files/install/vga/uzImage.bin/download

			http://sourceforge.net/projects/slackwareonapc8750/files/boot/vga/uzImage.bin/download

			http://sourceforge.net/projects/slackwareonapc8750/files/configs/config.slackinst.vga/download

			http://sourceforge.net/projects/slackwareonapc8750/files/configs/config.slackboot.vga/download

			http://sourceforge.net/projects/slackwareonapc8750/files/configs/config.slackinst.ttyWMT0/download

			http://sourceforge.net/projects/slackwareonapc8750/files/configs/config.slackboot.ttyWMT0/download

			http://sourceforge.net/projects/slackwareonapc8750/files/initramfs_data.cpio.gz/download

Gv: /* links */

2014-08-03T18:21:24Z

links

← Older revision		Revision as of 18:21, 3 August 2014
Line 224:		Line 224:

	http://ftp.arm.slackware.com/slackwarearm/		http://ftp.arm.slackware.com/slackwarearm/

			https://github.com/gv1/apc8750

Gv at 17:58, 3 August 2014

2014-08-03T17:58:39Z

Show changes

Gv: /* Creating a bootable micro sd card */

2014-08-03T17:05:42Z

Creating a bootable micro sd card

← Older revision		Revision as of 17:05, 3 August 2014
Line 8:		Line 8:

	For this you need a custom built kernel and a initramfs image from slackware for arm distribution - uinitrd-kirkwood.img		For this you need a custom built kernel and a initramfs image from slackware for arm distribution - uinitrd-kirkwood.img

			* uzImage.bin
			[[Detailed description of how uzImage.bin was prepared.]]

			* initrd-kirkwood.cpio
			[[Detailed description of how initrd-kirkwood.cpio was prepared.]]

			Download and keep these files ready

	=== Preparing the micro sd card ===		=== Preparing the micro sd card ===

			You need at least three partitions, one vfat, one or more Linux partitions, and a Linux swap partition for this method of installation. Here is how the partitions I used look like under fdisk ran on host.
	You need at least three partitions, one vfat, one or more Linux partitions, and a Linux swap partition. Here is how the partitions I used look like under fdisk ran on host.

	<pre>		<pre>
Line 34:		Line 41:
	* 2nd partition: create a reiserfs ( or other ) file system using mkreiserfs		* 2nd partition: create a reiserfs ( or other ) file system using mkreiserfs

	~~Now you need to make a custom kernel for booting into~~. I used linux-vtwm-testing		==== Detailed description of how uzImage.bin was prepared. ====
	available at https://github.com/linux-wmt/linux-vtwm
	Please refer to the link: for the config file which was used.		I used linux-vtwm-testing available at https://github.com/linux-wmt/linux-vtwm
	also require a small initramfs image prepared from the boot media aviable at apc.io library. download it from here : initramfs_data.cpio.gz or		Please refer to the link [[config.slackinstall.vga]] for the config file which was used. This method also require a small initramfs image prepared from the boot media aviable at apc.io library. download it from here : [[initramfs_data.cpio.gz]] or
	use the following init scrip with the initrd.gz from apc.io library.		use the following init scrip with the initrd.gz from apc.io library.

Line 60:		Line 67:

	Copy the initramfs_data.cpio.gz for to $KERNEL_SRC/usr area.		Copy the initramfs_data.cpio.gz for to $KERNEL_SRC/usr area.
	~~In case you are building it on your own:~~
			===== Details of how initramfs_data.cpio.gz was prepared. =====

	<pre>		<pre>
	gunzip initrd.gz		gunzip initrd.gz
	mkdir ~~initramfs_dat~~		mkdir initramfs_data
	~~mountpoint initramfs_data \|\|~~ mount -o loop initrd fs		mount -o loop initrd initramfs_data

	create initramfs_data/init as shown above		create initramfs_data/init as shown above

	chmod a+x initramfs_data/init		chmod a+x initramfs_data/init
	sync		sync
	(cd initramfs_data ; find . \| cpio -o -H newc \| gzip > ../initramfs_data.cpio.gz )		(cd initramfs_data ; find . \| cpio -o -H newc \| gzip > ../initramfs_data.cpio.gz )

	</pre>		</pre>

Line 78:		Line 90:
	kernel is compiled on the host, using arm-2014.05 from arm.		kernel is compiled on the host, using arm-2014.05 from arm.

	Eg:		kernel build procedure:
	<pre>		<pre>
	export OBJ=/src/apc.io/obj.testing		export OBJ=/src/apc.io/obj.testing
Line 97:		Line 109:
	Preparing the cpio archive:		Preparing the cpio archive:
	<pre>		<pre>
			download uinitrd-kirkwood.img
	dd if=./uinitrd-kirkwood.img bs=64 skip=1 of=initrd-kirkwood.cpio.gz		dd if=./uinitrd-kirkwood.img bs=64 skip=1 of=initrd-kirkwood.cpio.gz
	gunzip initrd-kirkwood.cpio.gz		gunzip initrd-kirkwood.cpio.gz
	</pre>		</pre>
	~~Once both uzImage.bin and initrd-kirkwood.cpio copy them to the bootable vfat~~ partition.
			=== Copying slackware install files onto second partition ===

	Create a slackware14.1 directory in the reiserfs partition of the micro sd card.		Create a slackware14.1 directory in the reiserfs partition of the micro sd card.
	Copy slackware for arm distribution to the slackware14.1 directory. Now you		Copy slackware for arm distribution to the slackware14.1 directory.
	are ready to boot the new disk, and install slackware from the pre mounted directory
	under /mnt/slackware14.1/slackware ( which is automounted as the selection for target is done ).		=== Booting and installing slackware ===

			Now you are ready to boot the new disk, and install slackware from the pre mounted directory under /mnt/slackware14.1/slackware ( which is automounted as the selection for target is done ).

	=== Configuration ===		=== Configuration ===

Gv at 14:45, 3 August 2014

2014-08-03T14:45:20Z

← Older revision		Revision as of 14:45, 3 August 2014
Line 1:		Line 1:

			== Trial Edition ==


	~~JUST PREPARING THE PAGE~~		== Installing Slackware on apc-8750 ==

			== Creating a bootable micro sd card ==

			For this you need a custom built kernel and a initramfs image from slackware for arm distribution - uinitrd-kirkwood.img

	~~Installing Slackware on apc-8750~~		=== Preparing the micro sd card ===
	~~http://apc.io/products/8750a/~~
	~~http://apc.io/library/~~
	~~https://github.com/linux-wmt/linux-vtwm~~
	~~http://arm.slackware.com/getslack/~~
	~~http://ftp.arm.slackware.com/slackwarearm/~~

	~~Creating a bootable~~ micro sd card
	~~problem~~
	~~solution~~

	~~Installing slackware~~



	~~Creating a bootable micro sd card~~		You need at least three partitions, one vfat, one or more Linux partitions, and a Linux swap partition. Here is how the partitions I used look like under fdisk ran on host.
	~~For this you need a custom built kernel and a initramfs image from slackware for arm distribution - uinitrd-kirkwood.img~~

	~~Preparing the micro sd card~~
	You need at least three partitions, one vfat, one or more Linux partitions, and a Linux swap partition. Here is how the partitions I used look like under fdisk ran on host.


			<pre>
	Disk /dev/sdc: 15.9 GB, 15931539456 bytes		Disk /dev/sdc: 15.9 GB, 15931539456 bytes
	64 heads, 32 sectors/track, 15193 cylinders, total 31116288 sectors		64 heads, 32 sectors/track, 15193 cylinders, total 31116288 sectors
Line 39:		Line 27:
	/dev/sdc3 28878848 31116287 1118720 82 Linux swap		/dev/sdc3 28878848 31116287 1118720 82 Linux swap

			</pre>

			Creating filesystem:

	1st partition: make it bootable, and create a file system using mkfs.vfat		* 1st partition: make it bootable, and create a file system using mkfs.vfat
	2nd partition: create a reiserfs ( or other ) file system using mkreiserfs		* 2nd partition: create a reiserfs ( or other ) file system using mkreiserfs

	Now you need to make a custom kernel for booting into. I used linux-vtwm-testing		Now you need to make a custom kernel for booting into. I used linux-vtwm-testing
Line 48:		Line 39:
	also require a small initramfs image prepared from the boot media aviable at apc.io library. download it from here : initramfs_data.cpio.gz or		also require a small initramfs image prepared from the boot media aviable at apc.io library. download it from here : initramfs_data.cpio.gz or
	use the following init scrip with the initrd.gz from apc.io library.		use the following init scrip with the initrd.gz from apc.io library.

	init:		init:
			<pre>
	#!/bin/busybox sh		#!/bin/busybox sh
	/bin/busybox mount -t proc /proc		/bin/busybox mount -t proc /proc
Line 65:		Line 57:
	exec chroot /root /bin/busybox init		exec chroot /root /bin/busybox init
	exec /bin/busybox init		exec /bin/busybox init
			</pre>

	Copy the initramfs_data.cpio.gz for to $KERNEL_SRC/usr area.		Copy the initramfs_data.cpio.gz for to $KERNEL_SRC/usr area.
	In case you are building it on your own:		In case you are building it on your own:
			<pre>
	gunzip initrd.gz		gunzip initrd.gz
	mkdir initramfs_dat		mkdir initramfs_dat
Line 75:		Line 69:
	sync		sync
	(cd initramfs_data ; find . \| cpio -o -H newc \| gzip > ../initramfs_data.cpio.gz )		(cd initramfs_data ; find . \| cpio -o -H newc \| gzip > ../initramfs_data.cpio.gz )
			</pre>

	Please note that the kernel uses a CONFIG_CMDLINE=		Please note that the kernel uses a CONFIG_CMDLINE=
	for vga:		for vga:
	CONFIG_CMDLINE=" mem=440M console=tty0 mbtotal=52M"		* CONFIG_CMDLINE=" mem=440M console=tty0 mbtotal=52M"
	for serial:		for serial:
	CONFIG_CMDLINE=" mem=440M console=ttyWMT0,115200n8 mbtotal=52M"		* CONFIG_CMDLINE=" mem=440M console=ttyWMT0,115200n8 mbtotal=52M"
	kernel is compiled on the host, using arm-2014.05 from arm.		kernel is compiled on the host, using arm-2014.05 from arm.

	Eg:		Eg:
			<pre>
	export OBJ=/src/apc.io/obj.testing		export OBJ=/src/apc.io/obj.testing
	export KERNEL_SRC=/src/apc.io/linux-vtwm-testing		export KERNEL_SRC=/src/apc.io/linux-vtwm-testing
Line 99:		Line 94:
	-e 0x8000 -n "My Linux" -d $1/$2/zImage_w_dtb $1/$2/uzImage.bin		-e 0x8000 -n "My Linux" -d $1/$2/zImage_w_dtb $1/$2/uzImage.bin

			</pre>
	Preparing the cpio archive:		Preparing the cpio archive:
			<pre>
	dd if=./uinitrd-kirkwood.img bs=64 skip=1 of=initrd-kirkwood.cpio.gz		dd if=./uinitrd-kirkwood.img bs=64 skip=1 of=initrd-kirkwood.cpio.gz
	gunzip initrd-kirkwood.cpio.gz		gunzip initrd-kirkwood.cpio.gz
			</pre>
			Once both uzImage.bin and initrd-kirkwood.cpio copy them to the bootable vfat partition.

	~~Once both uzImage.bin and initrd-kirkwood.cpio copy them to the bootable vfat partition.~~		Create a slackware14.1 directory in the reiserfs partition of the micro sd card.
	~~create~~ a slackware14.1 directory in the reiserfs partition of the micro sd card.		Copy slackware for arm distribution to the slackware14.1 directory. Now you
	~~copy~~ slackware for arm distribution to the slackware14.1 directory. Now you
	are ready to boot the new disk, and install slackware from the pre mounted directory		are ready to boot the new disk, and install slackware from the pre mounted directory
	under /mnt/slackware14.1/slackware ( which is automounted as the selection for target is done ).		under /mnt/slackware14.1/slackware ( which is automounted as the selection for target is done ).

			=== Configuration ===

			For X Windows, use a window manager like fluxbox.

			== links ==

			http://apc.io/products/8750a/

			http://apc.io/library/

			https://github.com/linux-wmt/linux-vtwm

			http://arm.slackware.com/getslack/

			http://ftp.arm.slackware.com/slackwarearm/

Gv: Created page with " JUST PREPARING THE PAGE Installing Slackware on apc-8750 http://apc.io/products/8750a/ http://apc.io/library/ https://github.com/linux-wmt/linux-vtwm http://arm.slackware..."

2014-08-03T14:17:24Z

Created page with " JUST PREPARING THE PAGE Installing Slackware on apc-8750 http://apc.io/products/8750a/ http://apc.io/library/ https://github.com/linux-wmt/linux-vtwm http://arm.slackware..."

New page

JUST PREPARING THE PAGE

Installing Slackware on apc-8750
http://apc.io/products/8750a/
http://apc.io/library/
https://github.com/linux-wmt/linux-vtwm
http://arm.slackware.com/getslack/
http://ftp.arm.slackware.com/slackwarearm/

Creating a bootable micro sd card
problem
solution

Installing slackware

Creating a bootable micro sd card
For this you need a custom built kernel and a initramfs image from slackware for arm distribution - uinitrd-kirkwood.img

Preparing the micro sd card
You need at least three partitions, one vfat, one or more Linux partitions, and a Linux swap partition. Here is how the partitions I used look like under fdisk ran on host.

Disk /dev/sdc: 15.9 GB, 15931539456 bytes
64 heads, 32 sectors/track, 15193 cylinders, total 31116288 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Device Boot Start End Blocks Id System
/dev/sdc1 * 2048 206847 102400 c W95 FAT32 (LBA)
/dev/sdc2 206848 28878847 14336000 83 Linux
/dev/sdc3 28878848 31116287 1118720 82 Linux swap

1st partition: make it bootable, and create a file system using mkfs.vfat
2nd partition: create a reiserfs ( or other ) file system using mkreiserfs

Now you need to make a custom kernel for booting into. I used linux-vtwm-testing
available at https://github.com/linux-wmt/linux-vtwm
Please refer to the link: for the config file which was used.
also require a small initramfs image prepared from the boot media aviable at apc.io library. download it from here : initramfs_data.cpio.gz or
use the following init scrip with the initrd.gz from apc.io library.
init:

#!/bin/busybox sh
/bin/busybox mount -t proc /proc
/bin/busybox mount -t sys /sys
/bin/busybox echo /sbin/mdev > /proc/sys/kernel/hotplug
/bin/busybox mdev -s
/bin/busybox --install
mkfs.ext2 /dev/ram0
mkdir /root
mount /dev/ram0 /root
cd /root
mkdir /flash
mount /dev/mmcblk0p1 /flash
cpio -id < /flash/initrd-kirkwood.cpio
exec chroot /root /bin/busybox init
exec /bin/busybox init

Copy the initramfs_data.cpio.gz for to $KERNEL_SRC/usr area.
In case you are building it on your own:
gunzip initrd.gz
mkdir initramfs_dat
mountpoint initramfs_data || mount -o loop initrd fs
create initramfs_data/init as shown above
chmod a+x initramfs_data/init
sync
(cd initramfs_data ; find . | cpio -o -H newc | gzip > ../initramfs_data.cpio.gz )

Please note that the kernel uses a CONFIG_CMDLINE=
for vga:
CONFIG_CMDLINE=" mem=440M console=tty0 mbtotal=52M"
for serial:
CONFIG_CMDLINE=" mem=440M console=ttyWMT0,115200n8 mbtotal=52M"
kernel is compiled on the host, using arm-2014.05 from arm.

Eg:
export OBJ=/src/apc.io/obj.testing
export KERNEL_SRC=/src/apc.io/linux-vtwm-testing
export PATH=~/apc.io/apc-8750-master/u-boot/tools:$PATH
export PATH=/opt/local/arm/arm-2014.05/bin:$PATH
cp config.slackinst.vga $OBJ/.config
cp initramfs_data.cpio.gz $KERNEL_SRC/usr

make -C $KERNEL_SRC O=$OBJ ARCH=arm CROSS_COMPILE=arm-none-eabi- zImage -j 3
mv $OBJ/arch/arm/boot/zImage $1/$2/ ;
make -C $KERNEL_SRC O=$OBJ ARCH=arm CROSS_COMPILE=arm-none-eabi- dtbs
cat $1/$2/zImage $OBJ/arch/arm/boot/dts/wm8750-apc8750.dtb > $1/$2/zImage_w_dtb
mkimage -A arm -O linux -T kernel -C none -a 0x8000 \
-e 0x8000 -n "My Linux" -d $1/$2/zImage_w_dtb $1/$2/uzImage.bin

Preparing the cpio archive:

dd if=./uinitrd-kirkwood.img bs=64 skip=1 of=initrd-kirkwood.cpio.gz
gunzip initrd-kirkwood.cpio.gz

Once both uzImage.bin and initrd-kirkwood.cpio copy them to the bootable vfat partition.
create a slackware14.1 directory in the reiserfs partition of the micro sd card.
copy slackware for arm distribution to the slackware14.1 directory. Now you
are ready to boot the new disk, and install slackware from the pre mounted directory
under /mnt/slackware14.1/slackware ( which is automounted as the selection for target is done ).