i tried installing it via app manager it says

"UNABLE TO INSTALL 'NITDROID KERNEL FOR N900"

DO U SUGGEST THAT I REFLASH AND RE PART AND GO OVER THE WHOLE PROCESS AGAIN?

ammyt i would suggest ,make a video from A to Z for the whole bunch of people ..it will take less time than replying to every question again n again .

I have installed installer succesfully, but when i tap android icon in application menu, XTerminal starts and closes as soon. I don,t know if i have nitdroid non-succesfully installed before with previous installer, and can't uninstall nitdroid.

with this new installer my multiboot screen problem is gone.thanks a lot

i had instaled a prevos nitdroid.deb.. it is okay to install this new or i remove first the nitdroid that i installed? how to remove? tnx

after putting in these command all hell broke loose. even after reflash i cant get my phone back, no root in x terminal, no applications in app manager, no folder or folders in file manager everything is gone, can someone help me.
mkdir -p /home/user/util-linux /home/user/bin
cp /home/user/MyDocs/util-linux_2.13.1.1-1_armel.deb /home/user/util-linux
cd /home/user/util-linux
dpkg-deb -x util-linux_2.13.1.1-1_armel.deb root
cp root/sbin/fdisk /home/user/bin/
cd ..
rm -rf util-linux

2. Unmount designated partition (./MyDocs): umount /home/user/MyDocs

3. Launch Fdisk: /home/user/bin/fdisk /dev/mmcblk0

4. Print your current partition table: p

This table should show up:
Device Boot Start End Blocks Id System
/dev/mmcblk0p1 2 884865 28315648 c W95 FAT32 (LBA)
/dev/mmcblk0p2 884866 950401 2097152 83 Linux
/dev/mmcblk0p3 950402 974977 786432 82 Linux swap / Solaris

5. Delete partition 1 (./MyDocs): d
1

6. Create new re-sized primary partition: n
p
1
First cylinder: 2
Last cylinder: 800000

7. Create new extended partition: n
e
First cylinder: 800001
Last cylinder: 884865
n
First cylinder: 800001
Last cylinder: 884865
t
1
76
t
5
76

8. Point of no return - writing the table and syncing: w
reboot

9. Ignore any errors. After the reboot, return ./MyDocs back and format the new NITDroid partition by executing these: root
/home/user/bin/fdisk /dev/mmcblk0
t
1
0c
w
reboot
mkfs.vfat -F 32 /dev/mmcblk0p1
mke2fs -L NITDroid -j -m0 /dev/mmcblk0p5
reboot

If your device still has a flash memory on it, then lift your shoulders up as the hard part is gone!

10. Install Nitdroid on the new partition: apt-get update
apt-get install nitdroid-installer
mkdir -p /and
mount -o noatime,rw /dev/mmcblk0p5 /and
cd /home/user/MyDocs
rm -rf /and/*
bzcat Nitdroidarchivename.tar.bz2 | tar xvC /and
dpkg -i nitdroid-kernel-2.6.28-07_rc4_armel.deb
reboot

tried root
dpkgi -i NITDroid-Installer_0.2.8-5.deb

no luck I get

Preparing to replace nitdroid-installer ...setting up nitdroid-installer (0.2.8-5) ... then crashes :-(

ichecked ? there is no "and" dir

now my phone will not boot at all. It is a brick THANKS ALOT

@uh3418
You're welcomed.
WTH?Don't blame me if you don't know how to enter commands properly! What you're doing here is repartitioning!

I need a volunteer who is not afraid of reflashing, and should have a clean, stock N900 (no NITDroid junk stuff related). Anyone?