Dear All,
I announce that main function of Mult-boot from SD card is almost done.
I have uploaded the images to here for you preview:
http://people.openezx.org/alexzhang/images/20070930/
* There are 5 files:
blob: Blob2 (maybe It should be called SD card bootloader)
menu.lst: boot menu just like menu.lst of GRUB
zImage: OpenEZX images for A1200
yan0_34P: the motorola original kernel which I got it from yan0_34P
firmware.
zImage_3e00: the motorola original kernel which I dont know I got it
from where?
* The usage is:
1) Prepare two partition on your SD card, the first partition is VFAT,
the second is EXT2(or EXT3).
2) Copy all zImges and menu.lst to the directory /boot of first
partition(VFAT).
3) Build OpenMoko(or others) rootfs to the second partition(EXT3).
4) Use boot_usb to download the blob or flash the blob to the kernel
partition of Flash.
5) Boot, and then you can see a boot menu on the screen.
6) Use VOL_PLUS_KEY to select which image do you like to boot. Use
VOL_ENTER_KEY to boot.
* Note:
1) Read file from SD card is a little slow now, because I dont optimize
the SD card driver. So, please be a patient. ;)
2) OpenEZX' zImage works OK right now.
3) zImage_3e00 works, but BP does not work with it.
4) yan0_34p does not work. I guess we should add something before boot
like set kernel param tag, reset BP or set correct PASS_THRU_FLAG and so
on. Anyone give me some hints?
5) Param and initrd lines on menu.lst are NOT support now, will support
after Moto's original zImage works.
* Help me!!
As motorola's original zImage cannot be loaded by my blob, so it won't
help for people who want a dual boot (original kernel and openezx
kernel) just like me. Once it works, I think many end-users will love to
enjoy dual boot on their phones.
So, any discussion & suggestion about that is really appreciated.
P.S. my last email(topic: about KERNEL_RAM_BASE) I sent to ML seems is
not in ML, really strange problem. I will send it again.
Cheers,
Alex Zhang
