Hi Friends, I am in the process of putting together a target system with PPC7455 on a custom board. Right now, I only have serial port, 8 MB of on-board AMD flash, flash card through Xilinx System ACE, and 512 MB SDRAM. I can load the linux image & initrd to the flash or directly to the RAM through BDI2000.
I have linux running successfully alongwith initial ext2 ramdisk with busybox (compiled as static with powerpc-linux-gcc). I want to create a root fs on flash card and be able to either pivot_root to it after initrd boots up or mount it as root disk without any initrd. Since, I only have 100 MB on flash card, I plan on using uClibc. Now, I have the following dilemmas : 1.) Is it necessary to cross compile the kernel using uClibc toolchain or a glibc one is fine ? 2.) If I use initrd with flash card as root fs, do I need to build initrd as static binary or dynamic one ? 3.) What is the best approach to use given this situation, I havent been able to put together a stable system. Everytime, I do pivot_root from busybox (loaded from initrd) to the flash card (built from buildroot from uClibc), my system hangs after sometime or I see question marks or strange characters when I do "ls". Thanks --Sharad. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
