All,
Thanks for the previous help with building Fiasco/L4Re. Now that its built I have given a couple stabs at booting it on my beagleboard like device (I'll document all this in a blog and or wiki when/if I finish). Unfortunately I can't seem to get any sign of life on the screen (perhaps I should solder up a serial line for debugging purposes). What I've done:
1) Cross compiled L4Re and Fiasco for the beagleboard.
2) Copied l4re, lua, moe, fiasco, and created hello.lua to the SDs first partition (the fat boot partition).
3) Rebuilt/copied over u-boot.bin using: #define CONFIG_EXTRA_ENV_SETTINGS \ "bootargs=tbr=x console=tty1 omapfb.mode=dvi:1024x600MR-16@60 omapfb.vrfb=1 omapfb.vram=0:8M,1:4M,2:8M root=/dev/mmcblk0p2 rootdelay=1 rootfstype=ext3\0"
#define CONFIG_BOOTCOMMAND \ "mmc init; fatload mmc 0 0x02000000 fiasco; bootm 0x02000000"
Though I have tried different addresses including what I think is a typo on the "Getting Started" page of 0x002000000.
So some questions are: 1) I'm pretty sure the bootargs need changed. For example, does u-boot need to load ned, moe, and hello? Where should they be loaded? Any other comments on what fiasco expects the bootloader to do? (this is different than what the wiki provides of "how to do those unspecified things using GRUB") 2) To what address should I load fiasco? I assume it matters. 3) If these questions are already answered somewhere then I'd be more than happy with a link.
Cheers, Thomas
Hi Thomas
On 11/03/2010 07:09 PM, Thomas DuBuisson wrote:
All,
Thanks for the previous help with building Fiasco/L4Re. Now that its built I have given a couple stabs at booting it on my beagleboard like device (I'll document all this in a blog and or wiki when/if I finish). Unfortunately I can't seem to get any sign of life on the screen (perhaps I should solder up a serial line for debugging purposes). What I've done:
Cross compiled L4Re and Fiasco for the beagleboard.
Copied l4re, lua, moe, fiasco, and created hello.lua to the SDs
first partition (the fat boot partition).
- Rebuilt/copied over u-boot.bin using:
#define CONFIG_EXTRA_ENV_SETTINGS \ "bootargs=tbr=x console=tty1 omapfb.mode=dvi:1024x600MR-16@60 omapfb.vrfb=1 omapfb.vram=0:8M,1:4M,2:8M root=/dev/mmcblk0p2 rootdelay=1 rootfstype=ext3\0"
#define CONFIG_BOOTCOMMAND \ "mmc init; fatload mmc 0 0x02000000 fiasco; bootm 0x02000000"
Though I have tried different addresses including what I think is a typo on the "Getting Started" page of 0x002000000.
First of all you need to build a single image ELF file which can be loaded by u-boot because u-boot is not multiboot capable.
1. Create a configuration in src/l4/conf/modules.list 2. In your build directory type "make E=YOUR_ENTRY image" 3. Copy images/bootstrap_YOUR_ENTRY.uimage to your SD card 4. mmc init; fatload mmc 0 0x02000000 bootstrap_YOUR_ENTRY.uimage; bootm 0x02000000
Matthias.
So some questions are:
- I'm pretty sure the bootargs need changed. For example, does
u-boot need to load ned, moe, and hello? Where should they be loaded? Any other comments on what fiasco expects the bootloader to do? (this is different than what the wiki provides of "how to do those unspecified things using GRUB") 2) To what address should I load fiasco? I assume it matters. 3) If these questions are already answered somewhere then I'd be more than happy with a link.
Cheers, Thomas
l4-hackers mailing list l4-hackers@os.inf.tu-dresden.de http://os.inf.tu-dresden.de/mailman/listinfo/l4-hackers
Hi,
On Wed Nov 03, 2010 at 11:09:43 -0700, Thomas DuBuisson wrote:
Thanks for the previous help with building Fiasco/L4Re. Now that its built I have given a couple stabs at booting it on my beagleboard like device (I'll document all this in a blog and or wiki when/if I finish). Unfortunately I can't seem to get any sign of life on the screen (perhaps I should solder up a serial line for debugging purposes). What I've done:
There's no UART connector? You definitely should have a UART.
Cross compiled L4Re and Fiasco for the beagleboard.
Copied l4re, lua, moe, fiasco, and created hello.lua to the SDs
first partition (the fat boot partition).
- Rebuilt/copied over u-boot.bin using:
#define CONFIG_EXTRA_ENV_SETTINGS \ "bootargs=tbr=x console=tty1 omapfb.mode=dvi:1024x600MR-16@60 omapfb.vrfb=1 omapfb.vram=0:8M,1:4M,2:8M root=/dev/mmcblk0p2 rootdelay=1 rootfstype=ext3\0"
#define CONFIG_BOOTCOMMAND \ "mmc init; fatload mmc 0 0x02000000 fiasco; bootm 0x02000000"
Though I have tried different addresses including what I think is a typo on the "Getting Started" page of 0x002000000.
So some questions are:
- I'm pretty sure the bootargs need changed. For example, does
u-boot need to load ned, moe, and hello? Where should they be loaded? Any other comments on what fiasco expects the bootloader to do? (this is different than what the wiki provides of "how to do those unspecified things using GRUB") 2) To what address should I load fiasco? I assume it matters. 3) If these questions are already answered somewhere then I'd be more than happy with a link.
On ARM, booting works by generating an image which contains all the binaries (fiasco, l4re, moe, ned, etc...). This image is then transfered to the target and booted. It unpacks itself...
So, do the following. Go to the build-directory and do: $ make image E=hello Given everything is found (check l4/conf/Makeconf.boot otherwise) it will generate a images/bootstrap.uimage (and images/bootstrap.elf and images/bootstrap.raw). Copy bootstrap.uimage to the SD-Card and start it with (or similar) mmcinit fatload mmc 0 0x80ffffc0 bootstrap.uimage go 0x81000000
bootm should probably also work. It doesn't really matter where you put the uimage, it relocates itself if necessary. Taking the right address just does not slow it down (probably not noticable).
Adam
l4-hackers@os.inf.tu-dresden.de
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Adam Lackorzynski -
Matthias Lange -
Thomas DuBuisson