CastOS

castOS is a replacement firmware for the GP2X Wiz.

Development

• Compiling the kernel
• Compiling the rootfs
• Compiling the bootloader
• Building an image

Notes

boot from sd: http://www.gp32x.com/board/index.php?/topic/48062-booting-wiz-from-sd-card/

http://www.gp32x.com/board/index.php?/topic/48804-uimage-vs-uimageup/

in uboot, make CROSS_COMPILE=

copy tools/mkimage to toolchain/bin/arm-unknown-linux-gnueabi-mkimage

make ARCH=arm CROSS_COMPILE=arm-unknown-linux-gnueabi- gk

kernel is now in root of kernel sources, named uImage

Things to note:

• mknod console c 204 64
• mknod ttySAC0 c 204 64
• mknod -m 660 null c 1 3
• need to hack pollux_sdi.c to add EXPORT_SYMBOL_GPL(pollux_sdi_probe); and to uncomment the original pollux_sdi_probe function for SD booting