USB install/upgrade: add some more information.

wiki/src/todo/usb_install_and_upgrade.mdwn

@@ -236,6 +236,7 @@ we should look at.
    - supports creating a file-backed filesystem for `$HOME`,
      LUKS-encrypted by default, in the same partition where the Live
      system is installed
+   - uses parted
 * Fedora's [liveusb-creator](https://fedorahosted.org/liveusb-creator/):
    - works on Windows and GNU/Linux
    - "non-destructive install", which means?
@@ -245,6 +246,10 @@ we should look at.
    - actively developed (as of early 2011)
    - written in Python
    - input: ISO file or real CD
+   - output: extracts ISO's content to the partition
+   - does not use `livecd-iso-to-disk`
+   - needs to be slightly adapted/extended to support non-Fedora Live
+     systems, e.g. some directory names must be made configurable
    - sidux ships a modified version:
      which does not work on Lenny due to `dosfslabel` exiting with
      error code 1 even when successful
@@ -256,6 +261,7 @@ we should look at.
    - simple dd wrapper with proper sanity checks
 * [Mandriva Seed](http://git.mandriva.com/?p=projects/mandriva-seed.git;a=summary)
    - supports Windows and GNU/Linux
+   - fork of Fedora's liveusb-creator
 * [RIP’s mkusb](http://rip.7bf.de/current/mkusb.sh) and its
   [README](http://rip.7bf.de/current/mkusb.txt)
 * [usb-imagewriter](https://launchpad.net/usb-imagewriter)