Hi, mucking with the source cde and with configuration samples I've solved the compile problem I wrote about yesterday night (udelay) Now I can get a romimage file. I plan to burn this file inside the normal flash of my pcchips 810 board to boot from IDE (hard disk). However, the file romimage is too big! I would have expected a 256KB file, but I obtain a 1.4MB one: $ ll -h payload.block linuxbios.rom romimage -rw-rw-r-- 1 alesan alesan 64k Mar 14 13:31 linuxbios.rom -rw-rw-r-- 1 alesan alesan 1.3M Mar 14 13:31 payload.block -rw-rw-r-- 1 alesan alesan 1.4M Mar 14 13:31 romimage What am I doing wrong? This is the config file: target rom mainboard pcchips/m810lmr cpu k7 option CONFIG_UDELAY_TSC=1 option VIDEO_CONSOLE=1 option SERIAL_CONSOLE=1 option DEFAULT_CONSOLE_LOGLEVEL=6 option SERIAL_POST=1 option ENABLE_MII=1 option MUST_ENABLE_FLOPPY=1 option HAVE_FRAMEBUFFER=1 option SMA_SIZE=0x80 option BOOT_IDE=1 option IDE_BOOT_DRIVE=0 option ONE_TRACK=32 biosbase 0xffff0000 linux /usr/src/linux commandline root=/dev/hda1 console=ttyS0,115200 console=tty0 bye bye thank you as -- How to build a lirc receiver http://www.manoweb.com/alesan/lirc