How to change default partition scheme in chroot sid

[Henry Lenzi <synthespian@uol.com.br>]

Hello --

 I am currently running Woody and I created a chrooted sid partition.
 Here's my current partition scheme for sid:

Filesystem           1k-blocks      Used Available Use% Mounted on
/dev/hda2              4806080   4711892         0 100% /
/dev/hda5              3844584    119880   3529408   4% /var
/dev/hda4              2691228    862848   1691672  34% /root
/dev/hda1               189339      1333    178230   1% /boot
/dev/hda6              3844584   2486176   1163112  69% /usr
/dev/hda7              3844584   2864268    785020  79% /home

 As you can see, I am already facing some space problems.
 I did not chose this partition scheme, it was the default scheme.
 I would like to know if there's a way to change this default when you're
installing sid. Let me rephrase that: how do I install chrooted sid with an
arbitrary partition scheme and what tools do I use for that?
 The documentation I folllowed in order to install a chrooted sid was:
 
 http://javierlinares.com/debian/docs/chroot/chroot.pdf

 Thank you.

 Cheers,

 Henry