Thank you for your reply and sorry for my late post

I did tried running the Android version on debian chroot but had some dependencies missing and threw some other errors. the one i could not fix was that it depends on busybox-power which i do have installed on n900 but not in the debian environment.

so what i did was i downloaded the source for yamas (n900 version), installed the dependencies, i still had the problem with the busybox error buh this time instead of installing yamas i just ran the script and it works like a charm

even though i have had my n900 flashed for quite a few times now i still get the operand error, i remember some one here suggesting it was something to do with the bracket syntax in the script, after trying many times i could not figure it out. Buh the above solution works for me now so i dont care about the operand error any more.

thanks jellyroll for pointing me to the right direction