User:Stskeeps/Draft Mer Blueprint
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Revision as of 14:55, 16 January 2009
The Mer platform is a Linux distribution for mobile devices based on the Maemo platform from Nokia. Mer goals include:
- Improving and developing parts of Maemo that are of interest to the Maemo community.
- Making it easier to port existing desktop applications by hildonizing and adjusting them to the tablet form factor.
- Encouraging third party experimentation and development.
- Supporting tablet hardware no longer receiving updated OS software by Nokia.
- Making Maemo a generic platform for all tablet devices, including non-Nokia ones.
- Focusing Maemo community efforts in platform-related areas
Mer platform development will be done in the open, with public SCM repository, bugtrackers, and Wiki-based blueprint discussion.
We should stop seeing the tablets as strictly under-powered embedded systems, and see them for what they really are: powerful, power-efficient, economical handheld computers.
Historically, the Mer platform came from a discussion on reconstructing Maemo and a desire to make a proof of concept system of the thoughts in this proposal (M-R PoC), which developed into Mer after realization that it was a viable direction of development.
Contents |
Sprints
We employ the Maemo.org sprints method as development method for Mer. That means, get yourself a maemo.org account, and read this document through if you would like to contribute :)
Sprint January 2008 and before: Basic installable image
The purpose of this milestone:
- To provide a basic installable firmware image, both through installer and through flashing, for N8x0 tablets.
- The image must include a basic user interface and ability to connect to Wi-Fi networks.
- To provide a installer and image for 770 tablets.
- To provide initial developer tools so we can start developing for the tablets.
- Begin initial talks with Nokia and maemo.org on how to distribute full firmware images.
- Prepare for next milestone in terms of collaborative technologies.
If you have a task that needs to be done to fullfill the purposes of this milestone, add it to the table below, set it to 'Just standing' status, and with no commit date and owner.
If you want to take on a task, set the initial commit date, your nickname, and update your progress as you go, and update highlights of your work (including what gets added) as you work on it.
If you encounter any bugs in Maemo platform software while developing for Maemo, report them on bugs.maemo.org , and add the bug number to the sprint bug overview.
| Completed | Good progress | Just standing | Some help needed! | Really stuck/delayed |
| Committed | Task | Owner | % | Highlights |
|---|---|---|---|---|
| December | Proposal for distribution of firmware images including closed-source bits needed for community editions | Stskeeps | 10% | First proposal involving initfs bits proposed through maemo-community. |
| December | Initial imager - script to debootstrap and putting Mer on top of Ubuntu Jaunty minbase (x86, armel) for Mer/x86, Mer/armv5te (770,n8x0) | Stskeeps | 100% | Provided here |
| December | Initial Scratchbox1 SDK for Mer/armv5te | Stskeeps | 100% | Provided here |
| 2008-15-12 | Installer for Mer on Diablo | b-man | 70% | Initial versions |
| 2008-17-12 | cx3110x-umac-module (symlink to umac.ko module | qwerty12 | 100% | Now in repository |
| 2008-17-12 | nokia-n8x0-firmware (symlink to firmwares in initfs) | qwerty12 | 100% | Now in repository |
| 2008-17-12 | hildon-desktop-env with hildon-input-method setup | qwerty12 | 100% | Now in repository |
| qemu-eabi cputransp for Scratchbox | none | 0% |
Bug reports in bugzilla discovered through or related to Mer development in this sprint:
| ID | Severity | Product | Status | Resolution | Summary (4 tasks) ⇒ | Assignee |
|---|---|---|---|---|---|---|
| 3858+ | normal | System software | RESOLVED | FIXED | maemo-launcher build-depends on libhildondesktop-dev, which in turn build-depends on maemo-launcher-dev | Guillem Jover |
| 3997 | critical | Development platform | RESOLVED | WONTFIX | dbus-glib 0.78-0maemo1 causes hildon-desktop to crash in background-manager.h | Soumya |
| 4001 | normal | Development platform | RESOLVED | WONTFIX | Missing en_GB translations for logical names that already existed before | Soumya |
| 3939+ | normal | Desktop platform | RESOLVED | WONTFIX | sapwood loops infinitely at malformed request | unassigned |
Documentation and tasks
SDK
First, install Fremantle SDK, and add yourself as a user to scratchbox.
As user:
- wget -c http://stskeeps.subnetmask.net/mer/arm-linux-cs2008q3-72-libtool2_1.0.11_i386.deb
- sudo dpkg -i arm-linux-cs2008q3-72-libtool2_1.0.11_i386.deb (run as root)
- wget -c http://stskeeps.subnetmask.net/mer/scratchbox-devkit-mer_1.0.11_i386.deb
- sudo dpkg -i scratchbox-devkit-mer_1.0.11_i386.deb
- You can optionally get qemu-arm-eabi and use that here instead. It is very good for your use of the SDK
- sb-conf setup MER-ARMEL --compiler=arm-linux-cs2008q3-72-libtool2 --devkits=debian-etch:cputransp:perl:mer --cputransp=qemu-arm-cvs-m -f
- sb-conf reset -f MER-ARMEL
- sb-conf select MER-ARMEL
- sb-conf rootstrap MER-ARMEL http://stskeeps.subnetmask.net/mer/mer-armel-rootstrap-v8.tar.gz
- sb-conf install MER-ARMEL --etc --devkits --fakeroot
ISSUES:
- You might have to do export PKG_CONFIG_PATH=/usr/share/pkgconfig:/usr/lib/pkgconfig to get some pkg-config stuff going
- You might have to set cpu right and such to target armv5el (no vfp)
- You probably need to get EABI cpu transparency target too
- 'not safe for cross-compilation' warnings (not true, i think)
- fakeroot apt-get dist-upgrade is good once in a while to keep up to date.
Mer Installer
Make installer for Maemo/Diablo that does the following:
- Depends on bootmenu (bootmenu with bootmenu.d item)
- Allows simple installation (partition my internal/external MMC to 50mb FAT, 128mb swap, rest linux), or advanced (choose my own partition)
- Partitions, mkfs.ext3's and unpacks a downloaded tar.gz (built by the imager, uploaded to some http.). Should support resume of dls (wget -c?)
- Sets up the bootmenu item for Mer.
qemu-eabi cputransp for Scratchbox
See http://maemogeek.blogspot.com/2007/11/installing-qemu-arm-eabi-patch-into.html
Make a debian package with this binary (for i386), installing into /scratchbox/devkits/cputransp/bin/qemu-arm-eabi-sb2 and adding 'qemu-arm-eabi-sb2' to /scratchbox/devkits/cputransp/etc/cputransp-methods when installing, and removing when removing (sed -i?)
Edit |SDK to make instructions use qemu-arm-eabi-sb2 instead, and getting your .deb package.