as I know ,currently D2plug just support ubuntu lucid version at D2plug download web site

if you want to change ubuntu to debian ,I do some search on the forum

you could reference below link

http://www.plugcomputer.org/plugforum/index.php?topic=6060.0

as I know ,currently ,wireless at d2plug just has client mode

I not used fuse before ,so maybe my suggest isn't right

but I found

the D2PLUG kernel default config since not open fuse and ntfs support

so I suggest you open these option to give a try

you could open it through kernel menuconfig 

File Systems=> FUSE (Filesystem in Userspace) support
File Systems=> DOS/FAT/NT Filesystems=>NTFS file system support

than rebuild kernel

relate document you could found at
http://www.plugcomputer.org/downloads/d2plug/

reference below link

http://www.plugcomputer.org/405/us/d2plug/documentation/D2Plug-Software-User-Guide.pdf

check page 18 "D2Plug U-Boot Recovery with Marvell XDB Debugger"

base on your result

I will do below things to check
1. check the unreference function like "usb_init" , has be found at your compiler path
2. used file command to check the library format is you wanted
3. as I remember when you compiler this kind of library ,you should need to point out the kernel source to them ( I found you didn't mention it)
4.I still suggest to use plug computer native build , there will be more easy for you

Sorry ,misunderstand your question , you issue look like library path wrong

at this case I  think you could add some parameter to avoid this case , I list some lib configure help as below, you could see if you want to used some lib that path not

as default , you need to add "LDFLAG" to specified the library path BTW , if your header at some path need to be specified, you need add more "CPPFLAGS" info to

configure

./configure --help

...
 LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
              nonstandard directory <lib dir>
  LIBS        libraries to pass to the linker, e.g. -l<library>
  CPPFLAGS    C/C++/Objective C preprocessor flags, e.g. -I<include dir> if
              you have headers in a nonstandard directory <include dir
...

there are two options

one is add some parmter for configure, you just need type ./configure --help , search like "CC" word add your compiler path like "CC=<your path>

another one , as I remember like D2plug , gcc has been pre-install ,so you could treat it as a computer , you could move your package to like D2Plug, just like you done at host (x86)PC ,but this time you don't need install cross_compiler , beacuse you build and run it at same device , just follow ./configure than make all should be done

I don't know your are using which plug computer

base on your discribe , you should add "-I <your header file path>" into your make file

I think if you used latest kernel src to build uImage ,it should be running at your board ,not see below issue right?

if it is true , you could refernce latrest kernel src to check how to generate uImage to do , it should be solve your issue

if you want to gvie a try , you could reference kernel src "/arch/arm/boot Makefile" or "/arch/arm/Makefile" to do

Sorry I not has experement on Debian

but after see you build uImage precedure , I see some thing maybe wrong

you used mkimage ...-T ramdisk ... to generate , but uboot bootcmd comand can't reginize this type , so you see your error meaage

correct type should be kernel , I attach I used latest D2 kernel log for your reference

.....
   Created:      2010-07-15  11:15:16 UTC
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    3205164 Bytes =  3.1 MB
....

I know your concern

but if kernel not support FTDI than I don't think you install any package could help on  this

and I mention for you to do the test , I think is it is safe , beacuse ,relate part just usb function, others can't be impact

BTW , as I said I don' have your enviroument , so maybe I wrong the root cause isn't kernel feature support not include the FTDI ,so give a try to indentify

this I think also has help on your development

 if you want to get any package can't from rootfs has default soure.list

I think you could add this by yourselves

after you add source.list ,you could through apt-get or ubuntu GUI (system->administration->Synaptic Package Manager) to get/install what you need package

why I  suggest you don't used apt-get update , this beacuse too many package has been update at background, so there are possible has some chip

vendor  roprietary package been replace , I think you don't know which package cause , so you don't know how to restore it , but through apt-get install xxx, as I

 remember apt-get has parameter could restore what you just installed ,

I check ther kernel , I found some thing

but I don't have your test device on hand , I can't make sure what I saw could solve your issue

if you want to take a look,

you could download latest kernel form kernel downlord page

http://www.plugcomputer.org/downloads/d2plug/

used "make ARCH=arm menuconfig" check the

FTDI support at "Devices driver ->USB support ->USB Serial Converter support -> USB FTDI Single Port Serial Driver "

as I saw the  "USB Serial Converter support " and  "USB FTDI Single Port Serial Driver " is uncheck , so I think you could give a try

first of all I assume you want to used apt-get upgrade is want to get latest package to do development

but if you do this there are some side event

for example , there are some chip vendor proprietary package or lib in rootfs , I afraid even you solve apt-get upgrade error meaage issue , than your system

maybe not your expect, the chip vendor proprietary package or lib  will be overwrite form ubuntu server

so this is why I suggest you just download and upgrade kernel at rootfs form their download page ,not form ubuntu

so you don't need used apt-get upgrade to do the upgade , you just need to follow up user guild form download page to do

at my previous post I mention is

put on dowlaod page sue be verify , so I think it is suit for your development


 

I think you do this , it want the system up to date right?

if it is true , I suggest you go to

  "http://www.plugcomputer.org/downloads/d2plug/index.html"

to download latest kernel and rootfs to do this

due to every D2plug rootfs and kernel release has to do some test to make sure full system is ok than pop on web site, so if you want to get this form above web site will be better