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tj87
Device is not booting anything! Bootimage on AC100-10V crashed?
Apr 1 2011, 3:38 PM EDT | Post edited: Apr 1 2011, 3:38 PM EDT
Hi,

i tried to get Ubunu on my AC100-10V (bought it 2 day ago).
First I followed this introduction: http://ac100.gudinna.com/README/
than I did a Android-Update (from this point, my failure began) to Android 2.2
I wondered why Ubuntu isn't booing any more, so i googled and have to read that the normal introductions don't worked with Android 2.2
So I tried to downgrade... I tried the "sudo LD_LIBRARY_PATH=./nvflash/ ./nvflash/nvflash --bl ./prebuilt/fastboot.stock.bin"-Command with the parameter "rawdevicewrite" (first i backup-ed my partition-table-File)
Something went wrong and now i'm not able to boot anything! Neither Android nor Ubuntu! When i press (only) the power button the, the screen remains black (like in the flash-mode).
The flash mode still works! I try a few command like:
sudo LD_LIBRARY_PATH=./nvflash/ ./nvflash/nvflash --bl ./prebuilt/fastboot.stock.bin --rawdevicewrite 0 1536 boot.bin
But i only get the message:
downloading bootloader -- load address: 0x108000 entry point: 0x108000
download command failed NvError 0x120002
command failure: bootloader download failed (bad data)
bootloader status: Bct file not found (code: 21) message: flags: 1073844220

I askey myself :"Why want nvflash download the bootloader? I only want to write it!"

Is there an command to write the Bootloader-Image without downloading it?

I'm VERY thankful for every hint, tip, comment or solution!

(I know my English is not the best, but i hope you will understand my problem... thank you)
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Dorank
1. RE: Device is not booting anything! Bootimage on AC100-10V crashed?
Apr 9 2011, 12:30 PM EDT | Post edited: Apr 9 2011, 12:30 PM EDT
I'm new to this myself, but my guess is you are writing the wrong image. Where did you get the boot.img you are trying to write?

You'll need both:
http://www.f00d.nl/ac100/backup/2.1/part_2.img.gz
http://www.f00d.nl/ac100/backup/2.1/part_4.img.gz
(found them in an other thread here on some upload site)
and flash them (after gunzipping) with:
./nvflash --bl fastboot.bin --go
./nvflash -r --rawdevicewrite 0 1536 part_2.img
./nvflash -r --rawdevicewrite 1792 1024 part_4.img

From there on, putting the tegra boot image in partition 5 or 6 should work. 0  out of 1 found this valuable. Do you?    

lawaa
2. RE: Device is not booting anything! Bootimage on AC100-10V crashed?
Jun 25 2011, 12:05 PM EDT | Post edited: Jun 25 2011, 12:41 PM EDT
"sudo LD_LIBRARY_PATH=./nvflash/ ./nvflash/nvflash --bl ./prebuilt/fastboot.stock.bin --rawdevicewrite 0 1536 boot.bin
But i only get the message:
downloading bootloader -- load address: 0x108000 entry point: 0x108000
download command failed NvError 0x120002
command failure: bootloader download failed (bad data)
bootloader status: Bct file not found (code: 21) message: flags: 1073844220
"
Some progress here

1) You need your backup including partition table
2) make bct file from your partition2
dd if=part2.img bs=1 count=4080 of=BCT.img
3) Open your partitiontable.txt (from backup) so you'd see sector numbers and size per partition, you'll need the numbers in next step
4) Restore backup. For me the command was (replace paths and numbers according to data in your backup)
LD_LIBRARY_PATH=. ./nvflash --bct ../../BCT.img --bl ../prebuilt/fastboot.stock.bin --rawdevicewrite 0 1536 ../../images/backup/tac100-part-2.img --rawdevicewrite 1792 1024 ../../images/backup/tac100-part-4.img --rawdevicewrite 1536 256 ../../images/backup/tac100-part-3.img --rawdevicewrite 2816 2560 ../../images/backup/tac100-part-5.img --rawdevicewrite 5376 4096 ../../images/backup/tac100-part-6.img --rawdevicewrite 9472 512 ../../images/backup/tac100-part-7.img --rawdevicewrite 9984 153600 ../../images/backup/tac100-part-8.img --rawdevicewrite 163584 204800 ../../images/backup/tac100-part-9.img --rawdevicewrite 368384 1024 ../../images/backup/tac100-part-10.img --rawdevicewrite 369408 256 ../../images/backup/tac100-part-11.img --rawdevicewrite 369664 632320 ../../images/backup/tac100-part-12.img --rawdevicewrite 1001984 256 ../../images/backup/tac100-part-13.img
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