Multi-target development for maemo

Despite the fact that the maemo sdk "installer script" is the "preferred" way of installing scratchbox and the roostraps, I have never used it. I prefer to have my dpkg aware of the scratchbox. What I do instead, is grab the scratchbox packages with apt and download the rootstraps manually. These instructions are for debian/ubuntu -- on other distros/platforms you're on your own, sorry.

Here's approximately what I do:

> sudo sh -c 'echo "deb http://scratchbox.org/debian apophis main" >> /etc/apt/sources.list' # Use this on i386 systems
> sudo sh -c 'echo "deb http://www.ipi.fi/~pablo/maemo5-sdk_amd64 /" >> /etc/apt/sources.list' # Use this on amd64 systems
> sudo apt-get update
> sudo apt-get install scratchbox-core scratchbox-devkit-cputransp \
scratchbox-devkit-debian scratchbox-devkit-doctools scratchbox-devkit-maemo3 \
scratchbox-libs scratchbox-toolchain-cs2005q3.2-glibc-arm \
scratchbox-toolchain-cs2005q3.2-glibc2.5-arm \
scratchbox-devkit-perl
> sudo apt-get install scratchbox-toolchain-cs2007q3-glibc2.5-arm7 \
scratchbox-devkit-svn scratchbox-devkit-git
 

This takes a while to download and install, when it asks for users to add to scratchbox, just choose your user (and whomever might want to do scratchbox development on the box). Onwards:

> sudo wget -O /scratchbox/packages/mistral-armel-rootstrap.tgz \
http://repository.maemo.org/stable/mistral/armel/Maemo_Dev_Platform_v2.0_armel-rootstrap.tgz
> sudo wget -O /scratchbox/packages/bora-armel-rootstrap.tgz \
http://repository.maemo.org/stable/3.0/armel/maemo-sdk-rootstrap_3.0_armel.tgz
> sudo wget -O /scratchbox/packages/chinook-armel-rootstrap.tgz \
http://repository.maemo.org/stable/4.0/armel/maemo-sdk-rootstrap_4.0_armel.tgz
> sudo wget -O /scratchbox/packages/fremantle-armel-rootstrap.tgz \
http://repository.maemo.org/stable/5.0/armel/maemo-sdk-rootstrap_5.0_armel.tgz
 

These take a while too, depending obviously on the thickness of your webtubes. Now all left to do is to create scratchbox targets. Bear in mind, that you might need to re-logon to gain the sbox group, or you may also do:

> su - `whoami`
 

Now onto the rootstrap creation... The mistral and bora use the "glibc" -toolchain and chinook uses the "glibc2.5" -toolchain. First mistral:

> sb-conf st mistral-armel -c cs2005q3.2-glibc-arm \
-d debian-sarge:maemo3-tools:cputransp:doctools:perl:maemo3-debian \
-t qemu-arm-0.8.2-sb2
> sb-conf rs mistral-armel /scratchbox/packages/mistral-armel-rootstrap.tgz
> sb-conf in mistral-armel -c -e -d -F
 

Bora goes pretty much the same, just replace "mistral" with "bora":

> sb-conf st bora-armel -c cs2005q3.2-glibc-arm \
-d debian-sarge:maemo3-tools:cputransp:doctools:perl:maemo3-debian \
-t qemu-arm-0.8.2-sb2
> sb-conf rs bora-armel /scratchbox/packages/bora-armel-rootstrap.tgz
> sb-conf in bora-armel -c -e -d -F
 

Okie, now we have two rootstraps, missing only chinook, it goes like this:

> sb-conf st chinook-armel -c cs2005q3.2-glibc2.5-arm \
-d debian-sarge:maemo3-tools:cputransp:doctools:perl:maemo3-debian \
-t qemu-arm-0.8.2-sb2
> sb-conf rs chinook-armel /scratchbox/packages/chinook-armel-rootstrap.tgz
> sb-conf in chinook-armel -c -e -d -F
 

Now trying also fremantle =)

> sb-conf st fremantle-armel -c cs2007q3-glibc2.5-arm7 \
-d debian-etch:qemu:doctools:svn:git \
-t qemu-arm-sb
> sb-conf rs fremantle-armel /scratchbox/packages/fremantle-armel-rootstrap.tgz
> sb-conf in fremantle-armel -c -e -d -F

Now you should have scratchbox with 3 targets: one for IT2006, one for IT2007 and one for upcoming IT2008.

Additional notes: the "bora" rootstrap is broken, it requires you to either install the "virtual packages" or install the real packages. I prefer the latter and add "deb http://repository.maemo.org gregale free non-free" to /etc/apt/sources.list momentarily and do "apt-get update; fakeroot apt-get -f install".

Now that you have three separate targets for different versions, you can jump from one target to another by doing sb-conf se <version>-armel. These instructions can easily be applied for i386 too, if you need to test your applications: just replace every occurrence of arm or armel with i386, drop the "cputransp" from devkits and omit the "-t qemu-arm-0.8.2-sb2" option.

Update: updated the chinook download url to the 4.0 final instead of the beta. Another: Thanks to Marius for pointing out that the perl devkit needs to be installed before it can be used.

Published on October 22, 2007