hi everybody sir, i have already made the crosscompiler for powerpc.. to load it on the FADS board are these steps sufficient.. i have downloaded the paulus kernel from ppckernel.org version 2.4.2 STEPS:-- 1)Define the IMMR to 0xf0000000 2)Initialize the memory controller so that RAM is available at physical address 0x00000000. On the SBC8260 is this 16M (64M) SDRAM. 3)The boot ROM should only clear the RAM that it is using. The reason for doing this is to enhances the chances of a successful post mortem on a Linux panic. One of the first items to examine is the 16k (LOG_BUF_LEN) circular console buffer called log_buf which is defined in kernel/printk.c. 4)To enhance boot ROM performance, the I-cache can be enabled. 5) Build the board information structure (see include/asm-ppc/est8260.h for its definition) 6)The compressed Linux kernel (zImage) contains a bootstrap loader that is position independent; you can load it into any RAM, ROM or FLASH memory address >= 0x00500000 (above 5 MB), or at its link address of 0x00400000 (4 MB). 7)Load R3 with the address of the board information structure 8)Transfer control to zImage thanks in advance bye vandana ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/