maemo.org - Talk - Triple-boot - Maemo 5 + Maemo 7 Leste + Android 2.3.4

I managed to have triple-boot on my N900. You get Maemo 5, Maemo 7 and Android 2.3.4 available to select at startup.

WARNING

The entire operation is risky. It's not too hard to kill our N900 and have to flash! Be careful!

Notes:

The system is installed on the SD card. The card will be formatted. The system does not affect the built-in EMMC memory.
The guide includes the installation of the U-Boot bootloader.
The guide includes cleean Maemo Leste installation.
The guide includes clean Android installation.
The guide includes kernel-power installation.

Requirements:

- SDHC card, capacity from 8 GB to 32 GB .. I used a 32 GB SDHC card from SanDisk.
- Nokia N900
- Time
- Caution

1. Install CSSU stable/testing to get working repos on N900:
https://wiki.maemo.org/Community_SSU
2. Get root privileges (by installing rootsh and/or sudser packages from Hildon Apps Manager).
3. Install clean Maemo Leste:
https://leste.maemo.org/Nokia_N900
Use Existing Fremantle option.
4. Get NITdroid archive:
https://archive.org/download/NokiaN9...2_UMay.tar.bz2
5. Get NITdroid kernel:
https://archive.org/download/NokiaN9...-rc7_armel.deb
6. Get patches, U-Boot kernel, boot item:
https://archive.org/download/NokiaN9.../init.nokia.rc
https://archive.org/download/NokiaN9...id/init_subsys
https://archive.org/download/NokiaN900NITdroid/uImage
https://archive.org/download/NokiaN9.../50-cm900.item
7. On N900 create nitdroid folder in MyDocs and place these files in it: N12_UMay.tar.bz2, init_subsys, init.nokia.rc, 50-cm900.item, nitdroid-kernel-*.deb, uImage
8. Run XTerm. Execute following commands:

Code:

root

apt-get update 

cp /home/user/MyDocs/nitdroid/50-cm900.item /etc/bootmenu.d/

apt-get install kernel-power kernel-power-bootimg kernel-power-modules kernel-power-flasher kernel-power-settings

cd /home/user/MyDocs/nitdroid

bzip2 -d N12_UMay.tar.bz2

cd /home

mkdir /and

cd /

mount /home /and

cd /and

tar xvf /home/user/MyDocs/nitdroid/N12_UMay.tar

mkdir /etc/multiboot.d

cp /home/user/MyDocs/nitdroid/init.nokia.rc /home

cp /home/user/MyDocs/nitdroid/uImage /home

cp /home/user/MyDocs/nitdroid/init_subsys /home/system/maemo/bin

dpkg -i /home/user/MyDocs/nitdroid/*.deb

We will be prompted to replace the kernel after running the fourth command - do NOT allow.
Next commands:

Code:

u-boot-update-bootmenu

ln -s /etc/bootmenu.d/20-*.item /etc/default/bootmenu.item

u-boot-update-bootmenu

9. Reboot, and select the OS you want. Ready! :D

Note:
While Maemo 5 and Maemo 7 are fully functional, Android ran this way has problems. Some functions may not work.

Goodbye, hope I helped :)