Originally Posted by Wild_Doogy

As no one has stepped up to provide a <realistic> way of getting the reboot menu to work, I will write one up.
(Please comment if I loose you, or if you need help)
I will post what I want to do, and then explain it step by step.

First you need to install rootsh which allows you to edit system files, and leafpad so you can edit them outside of therm command line.

To install both leafpad, and rootsh you will need to enable the maemo extras catalog.
Go to the applications manager, (called app.manager under More) and click the top bar. Click application catalogs, and then click maemo.org.
(please tell me if you dont have it.)
Uncheck "disabled", press save, click in the blurry area to close the bar, and wait for it to refresh.

Browse by alphabetical order and install leafpad, and rootsh.
When you find leafpad, click it, check the agreement box, and then "continue"
(Both apps are very stable. The change of messing up your phone is very small.)

Now its time to edit the actual file.
<Insert disclaimer here>
(If you mess up this file, the menu when you press the power button will only have "phone", but thats about it for damage.)

Open xterminal
Type

Code:

sudo gainroot

You now have full access over the N900
Type

Code:

cd /etc/systemui

"cd" means "change directory" to the directory "/etc/systemui"
(Press Tab to have to computer finish words. Double tap tab to display all options)
Type

Code:

leafpad systemui.sys

This will open the file that we need to edit.

Browse to near the bottom of the file, and find this:

Code:

<!--

and delete it
Then find

Code:

<--

at the bottom of the file and delete it as well.
Save the file, (Menu > save) and close leafpad and terminal.

Restart your N900, and Presto! you should have a reboot option.

~Wild_Doogy

Please comment if you find any errors, or parts that are unclear.