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This is a simplified guide for dual-booting with u-boot on Nokia N900. | This is a simplified guide for dual-booting with u-boot on Nokia N900. | ||
| - | '''You must be using the PR1.3 kernel and nothing else'''. You will likely end up in a reboot loop if you don't have this otherwise. To check this, in | + | '''You must be using the PR1.3 kernel and nothing else'''. You will likely end up in a reboot loop if you don't have this otherwise. To check this, in Settings -> About product, make sure you see: |
| - | <pre> | + | <pre>Version: 20.2010.36-2</pre> |
| - | + | ||
| - | + | ||
You will need a 2 GB microSD card or bigger. | You will need a 2 GB microSD card or bigger. | ||
WARNING: This guide is experimental and everything you do with this guide is at your own responsibility and risk and will probably void your warranty
WARNING: DO NOT RELY ON WALL CHARGER, ONLY USB CHARGING FOR 1.1 IMAGES, see meego bug #2260
WARNING: If you are unable to boot anything, do NOT let the device stay in u-boot. IMMEDIATELY reflash back to Maemo. Your battery may drain otherwise. You can solve a drain situation by reflashing back to Maemo using another, charged, battery. Or charge your battery in another Nokia device using the same battery type, such as the 5800, using a wall charger. There is a guide to battery drainage solving.
This is a simplified guide for dual-booting with u-boot on Nokia N900.
You must be using the PR1.3 kernel and nothing else. You will likely end up in a reboot loop if you don't have this otherwise. To check this, in Settings -> About product, make sure you see:
Version: 20.2010.36-2
You will need a 2 GB microSD card or bigger.
To boot back in to Maemo turn off your phone, then either remove the microSD and then turn on your phone, or turn it on and interrupt the boot during the countdown by pressing a button and then type "run noloboot".
If you want to remove U-boot you can as root in Maemo run: apt-get install --reinstall kernel kernel-flasher
If you are unable to get back into Maemo, please follow http://wiki.maemo.org/Updating_the_tablet_firmware in order to reflash your device. This will destroy your current Maemo setup, but return your device to a working state
For the technically minded, you can flasher '-F <firmware image> -u' and 'flasher -f zImage -R' to get your original kernel back and hopefully get back to your current Maemo setup. If you have used other kernels than PR1.3 kernel as is required, this will not work.