Hack-A-N900/Usb Recovery Mode

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I bricked my maemo setup several times. Often the underlying problem would have been trivial to fix, if i had a way to access the rootfs. Patching bootmenu enables us to boot a minimal system with just usb network and sshd enabled. that's still not optimal because this solution relies on rootfs being accessible (why?). sshd will still be using settings from the root fs.


Install bootmenu

Login via ssh to your n900 and:

# Get the bootmenu package package:
wget http://www.daimi.au.dk/~cvm/bootmenu_1.6_armel.deb

# Install bootmenu package
dpkg -i bootmenu_1.6_armel.deb

# Install bootmenu script

Patch bootmenu.sh to fix key bindings and enable usb recovery mode

cd /
wget http://metalab.at/wiki/images/4/40/Bootmenu_n900usbrecov.patch
patch -p0 < Bootmenu_n900usbrecov.patch

If you like you can edit /bootmenu.conf and adjust the ip address the usb interface will start with in recovery mode:

# IP address for USB networking

Boot into recovery mode

Reboot the device with the keyboard slide out(!). When the boot menu appears you can either select a boot entry or press "CTRL" to boot usb recovery mode.