Problem in 128 Linux Image?!!!!

Hi ,
im trying to use Debian GNU/Linux on a RB500.
i have installed 128 MB LinuxDebian (http://www.routerboard.com/files/rb500-128.img.zip) image on a 512 MB CF using dd.
when i setup the bios to boot from CF. i have the following loop:
RouterBOOT booter 1.5

RouterBoard 532

CPU frequency: 333 MHz
Memory size: 32 MB

Press any key within 1 seconds to enter setup.
loading kernel from CF… OK
setting up elf image… OK
jumping to kernel code

RouterBoard 532

CPU frequency: 333 MHz
Memory size: 32 MB

Press any key within 1 seconds to enter setup.
loading kernel from CF… OK
setting up elf image… OK
jumping to kernel code

RouterBoard 532

CPU frequency: 333 MHz
Memory size: 32 MB

Press any key within 1 seconds to enter setup.
loading kernel from CF… OK
setting up elf image… OK
jumping to kernel code

i have tried to reinstall the image on the same CF using physdiskwrite, same result.
i have even downloaded the image again and reinstalled it but nothing changed.
Concerning the CF, it is working good because i did a copy of a debian image specific to RB230 and tried it (on the 230 board) and worked good.
Can someone who tried this image analyse what is really happening …??
Actually i thought that the image file may be corrupted or something…

Thanx in advance..

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