Talk:Sugar Creation Kit/sck/Advanced Topics - Revision history

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Satellit at 19:49, 5 November 2012

2012-11-05T19:49:39Z

← Older revision	Revision as of 15:49, 5 November 2012
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		==Ubuntu on Chromebook==
		*Copied from: https://plus.google.com/109993695638569781190/posts/b2fazijJppZ
		Olof Johansson
		Oct 28, 2012 (edited) - Public
		[edited to fix some typos and the cgpt commandline and setting sector alignment]

		Sunday night is "Hack your Chromebook" time!

		A word of caution: be careful, there are some ways in which you can mess up your system below, in particular the steps that partitions and writes data to the SD card. If you're unsure of what you're doing, you're better off waiting until someone refines the instructions and makes them more user friendly.

		I got Ubuntu installed on my ARM Chromebook tonight. Here's a messy brain dump of what I did. The system was already in devmode when I started (see http://goo.gl/TSZxs for info on how to achieve that). I also already had a tarball of an Ubuntu filesystem, created with the "rootstock" tool. [edit: you can use the distributed ubuntu-core tarball directly from ubuntu as well, and then install additional packages on top]

		Get an SD card, insert it in a reader on your Ubuntu PC (mine was a 16GB card that ended up at /dev/sdd on the PC, so the below reflects that):

		First, the SD card needs a GPT partition table. I'm lazy and mixed tools here to make it easy for myself. First, I created the blank partition table in parted:

		# sudo parted /dev/sdd
		(parted) mktable gpt
		(parted) quit

		Then edit it with gdisk (apt-get install gdisk), since the syntax is close to what I am used with regular cfdisk. The first part sets the sector alignment to 4M based on the recommendation from Arnd in the comments below:

		sudo gdisk /dev/sdd
		x
		l
		8192
		m

		n
		1
		<enter>
		+16M
		7f00 (ChromeOS kernel)

		n
		2
		<enter>
		+16M
		7f00

		n
		3
		<enter>
		<enter>
		<enter>

		This creates three partitions; two kernel ones and one for the root filesystem. I wanted two kernel partitions to make it easier to tinker with the kernel and have a fallback to a known-good kernel in case the one being tested fails.


		Then, create a filesystem on the root partition:

		sudo mkfs.ext4 /dev/sdd3

		mount /dev/sdd3 somewhere and extract your rootstock filesystem to it:
		sudo mount /dev/sdd3 /mnt
		cd /mnt
		sudo tar xvpf /work/rootstock/armel.tar.gz

		Then, since we are going to use the same kernel as we boot Chrome
		OS with, copy over the contents from /lib/modules and /lib/firmware
		from your running system into the same location on the SD card
		(i.e. /mnt/lib/modules /mnt/lib/firmware). I did it by creating a tarball
		on the Chrome OS machine and scp:ing it over to my PC. I'll leave the
		details as an exercise for the reader here.

		Now the only remaining piece is to put an actual kernel on the kernel
		partitions of the SD card.

		This is something I did on my Chromebook system directly. Be VERY careful here, mmcblk1 and mmcblk0 are very easy to mistype, and you won't like the results from doing it (I nuked my stateful partition by mistake once when I went through this because I dd:d a kernel to mmcblk0p1 instead of mmcblk1p1).

		The kernel command line is going to be different from what you use for
		Chrome OS, so you'll need to repack the kernel blob manually first. This
		is what I did:

		cd /tmp
		echo "console=tty1 debug verbose root=/dev/mmcblk1p3 rootwait rw" > /tmp/config
		vbutil_kernel --pack /tmp/newkern --keyblock /usr/share/vboot/devkeys/kernel.keyblock --version 1 --signprivate /usr/share/vboot/devkeys/kernel_data_key.vbprivk --config=/tmp/config --vmlinuz /boot/vmlinuz-3.4.0 --arch arm

		Then I moved the SD card to the Chromebook, and wrote out the kernel:

		dd if=/tmp/newkern of=/dev/mmcblk1p1
		dd if=/tmp/newkern of=/dev/mmcblk1p2

		Now, enable boot from "USB" (which includes SD card on these systems):
		crossystem dev_boot_usb=1

		Final step is to mark the partitions on the SD card as known good so
		that the firmware will try to boot them:

		cgpt add -i 1 -S 1 -T 5 -P 10 -l KERN-A /dev/mmcblk1
		cgpt add -i 2 -S 1 -T 5 -P 5 -l KERN-B /dev/mmcblk1

		I.e. mark both as successful, first partition as priority 10, second
		as priority 5. I don't think tries are technically needed here since
		the partition is already marked as successful, but I included it by
		habit. Same with the label names, they shouldn't be needed.

		Then reboot. At the devmode screen, you type ctrl-u to load the kernel
		and boot from the SD card.

		After a few seconds, you'll get the kernel log on the console, followed by
		(depending on what you have on your root filesystem) a login prompt. I
		had a very minimal install without X-windows first, so I just got a text login prompt. I later installed ubuntu-desktop, and it will boot up to login prompt and let you login with an UI environment. The trackpad isn't behaving perfectly though, so there's some tuning to be done.

		I'm sure there will be others more than happy to carry the flag on getting this going nice and smoothly from here though. I'm also looking forward to getting reports of other distros being functional, so bring them on!

FGrose: Blanked the page

2012-07-09T21:45:56Z

Blanked the page

← Older revision		Revision as of 17:45, 9 July 2012
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	~~:Note: This page copied to its own page [[Sugar_Creation_Kit/sck/Advanced_Topics_ARM_RPi]]--[[User:Satellit\|Satellit]] 06:53, 25 June 2012 (EDT)~~
	~~:: Thanks satellit_, I have deleted the duplication --[[User:Inkyfingers\|Inkyfingers]] 07:12, 25 June 2012 (EDT)~~

Inkyfingers: Replaced content with " :Note: This page copied to its own page Sugar_Creation_Kit/sck/Advanced_Topics_ARM_RPi--Satellit 06:53, 25 June 2012 (EDT) :: Thanks satellit_, I ..."

2012-06-25T11:12:17Z

Replaced content with " :Note: This page copied to its own page Sugar_Creation_Kit/sck/Advanced_Topics_ARM_RPi--Satellit 06:53, 25 June 2012 (EDT) :: Thanks satellit_, I ..."

← Older revision		Revision as of 07:12, 25 June 2012
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	:Note: This page copied to its own page [[Sugar_Creation_Kit/sck/Advanced_Topics_ARM_RPi]]--[[User:Satellit\|Satellit]] 06:53, 25 June 2012 (EDT)		:Note: This page copied to its own page [[Sugar_Creation_Kit/sck/Advanced_Topics_ARM_RPi]]--[[User:Satellit\|Satellit]] 06:53, 25 June 2012 (EDT)
	~~Sugar on a Raspberry pi is "functional" and testable by children (in progress).~~		:: Thanks satellit_, I have deleted the duplication --[[User:Inkyfingers\|Inkyfingers]] 07:12, 25 June 2012 (EDT)

	~~== Test report ==~~

	~~Product of the command~~
	~~sweets sdk/sugar~~:~~emulator~~
	~~Raspberry pi, running OS from http~~:~~//www.raspbian.org/ (pisces image) on a SanDisk 4 GB~~, ~~class 4, SDHC card.~~

	~~Sweets, following these instructions [[Platform_Team/Guide/Sugar_via_Sweets]]~~

	~~From my computer~~
	~~::Build: Debian GNU/Linux testing/unstable~~
	~~::Sugar: 0.94.1~~

	~~All Function keys, F1 to 6, work fine~~

	~~All Views and avatars seen correctly, without error.~~

	~~Software Updates fully functional.~~

	~~Calculate.activity v.40 Starts and Resumes~~

	~~Chat.activity v.77 Starts and Resumes~~

	~~HorseGame.activity v.4 Starts and Resumes~~

	~~IRC.activity v.10 Starts and Resumes~~

	~~Log v.29 Starts and Resumes~~

	~~Labyrinth.activity v.12 Starts and Resumes~~

	~~Maze.activity v.21 Starts and Resumes~~

	~~Memorize.activity v.4 Starts and Resumes~~

	~~Moon.activity v.14 Starts and Resumes~~

	~~Pippy.activity v.49 Starts and Resumes~~

	~~SprayPlay.activity v.2 Starts and Resumes~~

	~~SugarCommander.activity v.8 Starts and Resumes~~

	~~Terminal.activity v.40 Starts and Resumes~~

	~~Turtle Art v.149 Starts and Resumes~~

	~~TurtleConfusion.activity v.10 Starts and Resumes~~

	~~Surf.activity v.115 Reports, Failed to start.~~

	~~ImportError: No module named webkit~~
	~~To fix tried:~~
	~~sudo apt-get install libwebkitgtk-3.0-dev~~
	~~which added~~
	~~gir1.2-javascriptcoregtk-3.0 gir1.2-soup-2.4 gir1.2-webkit-3.0 libgtk-3-dev libjavascriptcoregtk-3.0-dev libsoup2.4-dev libwebkitgtk-3.0-dev libxml2-dev~~
	~~But error persists:~~
	~~ImportError: No module named webkit~~

	~~Earlier in~~ the ~~process, to fix:~~

	~~ImportError: No module named vte~~
	~~ImportError: No module named gst~~
	~~ImportError: No module named pygame~~

	~~sudo apt-get install python-vte python-gst0.10 python-pygame~~

	~~This page might merit its own page. Will a Talk:page move successfully to its own page, preserving history? Suggestions for location?~~
	--[[User:Inkyfingers\|Inkyfingers]] 06:35, 25 June 2012 (EDT)

	~~== Help with install on IRC ==~~
	*from IRC with permission--[[User:Satellit\|Satellit]] 08:01, 22 June 2012 (EDT)
	*Based on these instructions: http://wiki.sugarlabs.org/go/Platform_Team/Guide/Sugar_via_Sweets
	~~<inkyfingers> Image from: http://www.raspbian.org/~~
	~~<inkyfingers> is Debian Hard Float (armhf) for RPi~~
	~~<inkyfingers> Is armhf likely to be a problem for <sweets>?~~
	~~<alsroot> inkyfingers: I didn't try to run sugar on arm. OLPC people support it but I dunno do they use sugar directly from upstream brunches (what was used for sweets (not SD)) or not~~
	~~<inkyfingers> #644010 is now marked fixed - so wheezy seems fine to me with python 2.7 - I believe eliminated.~~
	~~<alsroot> btw, whats exact sugar version you are running on Raspberry?~~
	~~<inkyfingers> Ok tried sdk/sugar and dextrose/~~
	~~<inkyfingers> dextrose marginally more success.~~
	~~<inkyfingers> * Booting Rpi ... will try to ssh for notes . I tested Sugar 0.88 and 0.94~~
	~~...~~
	~~<inkyfingers> raspbian@pisces:~$ sweets dextrose/sugar:emulator~~
	~~<inkyfingers> Xephyr on :30.0~~
	~~<inkyfingers> About my computer:~~
	~~<inkyfingers> Build: Debian GNU/Linux testing/unstable~~
	~~<inkyfingers> Sugar: 0.88.1~~
	~~...~~
	~~<inkyfingers> I will try to write only about sweets dextrose/sugar:emulator ...~~
	~~<inkyfingers> F1 to F6 all fine ok~~
	~~<alsroot> thats fine..~~
	~~<alsroot> though, in my mind SD, finally, is more useful way to start sugar itself. but unfortunately, it does not [yet]support arm~~
	~~<inkyfingers> I could see no avatars in F1 in dextrose <seen fine in sdk, 0.94>~~
	~~<inkyfingers> I have no Activities in F3~~
	~~<alsroot> for activities, you can unzip some of them (that are pure python) to ~/Activities~~
	~~<inkyfingers> That would be a good next step.~~
	~~<inkyfingers> Two usb ports are used by mouse and kbd. I will prepare a USB stick next and try that out.~~
	~~<alsroot> inkyfingers: btw, how long it took to build sugar via "sweets" command?~~
	~~<inkyfingers> Over 8 or 9 mins of 100% CPU~~
	~~<inkyfingers> sorry ssh into my rubbish notes is hard !! I keep not finding what I want!~~
	~~<inkyfingers> raspbian@pisces:~$ sweets sdk/sugar:emulator~~
	~~<inkyfingers> -- Solve sdk/sugar-artwork for building~~
	~~<inkyfingers> -- Solve sdk/sugar-base for building~~
	~~<inkyfingers> -- Solve sdk/sugar-toolkit for building~~
	~~<inkyfingers> -- Solve sdk/sugar-datastore for building~~
	~~<inkyfingers> -- Solve sdk/telepathy-mission-control for building~~
	~~<inkyfingers> -- Solve sdk/sugar for building~~
	~~<inkyfingers> -- Build sdk/sugar-artwork (0.94.0)~~
	~~<inkyfingers> -- Build sdk/sugar-base (0.94.0)~~
	~~<inkyfingers> -- Build sdk/sugar-toolkit (0.94.0)~~
	~~<inkyfingers> -- Build sdk/sugar-datastore (0.94.0)~~
	~~<inkyfingers> -- Build sdk/telepathy-mission-control (5.7.1)~~
	~~<inkyfingers> -- Build sdk/sugar (0.94.1)~~
	~~<inkyfingers> this made me think Activities should be on-board?~~
	~~<alsroot> inkyfingers: nope, this way you can't install activities~~
	~~<alsroot> dunno will Browse work on or not (to open ASLO), but just download .xo files to unzip them to ~/Activities~~
	~~<inkyfingers> So that trace was just my first successful launch~~
	~~<inkyfingers> df -h (before that command)~~
	~~<inkyfingers> Filesystem Size Used Avail Use% Mounted on~~
	~~<inkyfingers> rootfs 3.3G 2.1G 1.1G 68% /~~
	~~<inkyfingers> now~~
	~~<inkyfingers> rootfs 3.3G 2.2G 985M 69% /~~

Inkyfingers: SDHC class 4, 4 GB

2012-06-25T10:55:47Z

SDHC class 4, 4 GB

← Older revision		Revision as of 06:55, 25 June 2012
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	Product of the command		Product of the command
	sweets sdk/sugar:emulator		sweets sdk/sugar:emulator
	Raspberry pi, running OS from http://www.raspbian.org/ (pisces image)		Raspberry pi, running OS from http://www.raspbian.org/ (pisces image) on a SanDisk 4 GB, class 4, SDHC card.

	Sweets, following these instructions [[Platform_Team/Guide/Sugar_via_Sweets]]		Sweets, following these instructions [[Platform_Team/Guide/Sugar_via_Sweets]]

Satellit: This page copied to its own page Sugar_Creation_Kit/sck/Advanced_Topics_ARM_RPi

2012-06-25T10:53:08Z

This page copied to its own page Sugar_Creation_Kit/sck/Advanced_Topics_ARM_RPi

← Older revision		Revision as of 06:53, 25 June 2012
Line 1:		Line 1:

			:Note: This page copied to its own page [[Sugar_Creation_Kit/sck/Advanced_Topics_ARM_RPi]]--[[User:Satellit\|Satellit]] 06:53, 25 June 2012 (EDT)
	Sugar on a Raspberry pi is "functional" and testable by children (in progress).		Sugar on a Raspberry pi is "functional" and testable by children (in progress).

Inkyfingers: Sweets on a Raspberry pi functional. Preliminary test report.

2012-06-25T10:42:54Z

Sweets on a Raspberry pi functional. Preliminary test report.

← Older revision		Revision as of 06:42, 25 June 2012
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	sudo apt-get install python-vte python-gst0.10 python-pygame		sudo apt-get install python-vte python-gst0.10 python-pygame

			This page might merit its own page. Will a Talk:page move successfully to its own page, preserving history? Suggestions for location?
	--[[User:Inkyfingers\|Inkyfingers]] 06:35, 25 June 2012 (EDT)		--[[User:Inkyfingers\|Inkyfingers]] 06:35, 25 June 2012 (EDT)

Inkyfingers: /* Test report */

2012-06-25T10:36:23Z

Test report

← Older revision		Revision as of 06:36, 25 June 2012
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	All Function keys, F1 to 6, work fine		All Function keys, F1 to 6, work fine

	~~Avatars~~ seen correctly without error.		All Views and avatars seen correctly, without error.

	Software Updates fully functional.		Software Updates fully functional.
Line 68:		Line 68:

	--[[User:Inkyfingers\|Inkyfingers]] 06:35, 25 June 2012 (EDT)		--[[User:Inkyfingers\|Inkyfingers]] 06:35, 25 June 2012 (EDT)

	== Help with install on IRC ==		== Help with install on IRC ==
	*from IRC with permission--[[User:Satellit\|Satellit]] 08:01, 22 June 2012 (EDT)		*from IRC with permission--[[User:Satellit\|Satellit]] 08:01, 22 June 2012 (EDT)

Inkyfingers at 10:35, 25 June 2012

2012-06-25T10:35:02Z

@@ Line 1: / Line 1: @@
-== Help with install, sweets on a Raspberry pi ==
+Sugar on a Raspberry pi is "functional" and testable by children (in progress).
 *from IRC with permission--[[User:Satellit|Satellit]] 08:01, 22 June 2012 (EDT)
 *Based on these instructions: http://wiki.sugarlabs.org/go/Platform_Team/Guide/Sugar_via_Sweets
@@ Line 52: / Line 121: @@
   <inkyfingers> now
   <inkyfingers> rootfs          3.3G  2.2G  985M  69% /