Running Meego Handset in an N900 chroot with Easy Debian: Part 1
I would like to document my process for getting Meego Handset to run in a Maemo chroot on the N900 using Easy Debian, so you don't have to multi-boot your phone.
But I can't document everything in one post, and I'm documenting as I go, so this first post will be the just first steps: how to get an Easy Debian compatible image out of the raw Meego images that the Meego project is posting.
I do these first steps on an Ubuntu desktop machine.
1. Download the latest Meego Handset image. I got mine from the builds directory of the Meego repository, here: http://repo.meego.com/MeeGo/builds/
The file you are looking for ends in .raw.bz2 and you can get to it by choosing the biggest numbered directory twice, then going into .../handset/images/meego-handset-armv7l-n900/ and downloading the .raw.bz2 file.
This is the one I'm using.
2. Unzip the file on your Linux machine.
I recommend becoming root for the entirety of this procedure. I suggest doing it before you even unzip the file. I had problems unzipping the file as a regular user, and this may have been my problem; I don't know, but what can it hurt to gain root right away?
sudo su -
Unzipping the file is pretty straightforward on a Linux command line:
In these instructions, I'm going to call the meego file "meego-handset-armv71-n900"; substitute the longer version as necessary.
3. Mount the Meego rootfs partition on loop. This is tricky, because the raw image has multiple partitions and so you have to use a little trick I found on the 'Net, here.
a. You need to first create a directory to mount on. I created /media/meego:
b. Now mount the first partition. First check to see where the partition starts:
See where the first partition starts. Multiply that number by 512, and use it as the offset. In my case, it starts at 1 so the calculation is easy. It is just 512. This will probably stay the same for future releases, but it might change. Better to document this, just in case.
mount -o loop,offset=512 meego-handset-armv7l-n900.raw /media/meego
4. Now make a new image file that will just have the Meego rootfs in it, so it can be mounted properly by Easy Debian. I made my image 1GB, but you can make it bigger if you want.
You have to format the new image file! I used ext3.
5. Mount the new empty image file. I made a mount point, /media/meego2, but you can use whatever name you want.
6. Copy the Meego rootfs to the new image file you created. Substitute the correct directories here.
7. Unmount everything.
8. Copy your new Easy Debian compatible image file to your N900. I would suggest using the USB cable, but there are lots of ways to do this. You can also zip up your file to keep a safe backup.
I'll try to post again soon with directions for getting the Meego Handset UI started under Easy Debian's Xephyr nested X server.