mobile

Hi, can someone help me with extracting boot ramdisk from boot partition?

I am on Z3 .690 LB and need to modify init.rc and other files. I can without problems extract the boot partition using dd from /dev/block/mmcblk0p14

however the resulting image fails any extraction tries with abootimg or unmkbootimg, reporting that it is not valid Android boot image...

Is it in any way possible to get the ramdisk from boot partition (and best put it modified back)?

Thanks..