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| 04:39.48 | flyback- | has really had it with his body and might decide to deal with it no matter what the risk |
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| 06:14.52 | nkh | Hi |
| 06:15.11 | nkh | I need help with unpacking/packing an image for a Flash device |
| 06:15.55 | nkh | The image is a 8M file , fdisk could not ecognize the file as a device |
| 06:16.16 | nkh | so I used the command "strings" to see what can I find |
| 06:17.18 | nkh | I found bootargs line of uboot and noticed that mtdparts=.... is giving me the partitions info, then I extracted the partitions from image with dd |
| 06:17.24 | nkh | here is the problem: |
| 06:17.54 | nkh | I have this in bootargs : mtdparts=GM flash device:192K(boot),2368K(romfs),2944K(usr),2112K(custom),64K(logo),512K(mtd) |
| 06:18.34 | nkh | 192 + 2368 = 2560 |
| 06:18.49 | nkh | mean 2560 would be offset of usr partition |
| 06:20.35 | nkh | but in the image, this offset contains about several KB of data and |
| 06:20.53 | nkh | offset 131088 contains the string "Compressed ROMFS" |
| 06:21.18 | nkh | which should be at the offset 16 of a CramFS Partition |
| 06:21.55 | nkh | I cncated the partitions properly and extracted data but I don't know how to repack it that my device can boot from ! :D |
| 06:22.55 | nkh | any idea to how concat the generated images with mkcramfs to obey the original pertitioning? |
| 06:25.03 | flyback- | I think he channel is kinda dead right now |
| 06:25.09 | flyback- | try #sparkfun ##electronics |
| 06:26.50 | nkh | flyback-: :| thank you |
| 06:27.10 | flyback- | also feel free to keep idling here someone might be around another time |
| 06:28.08 | nkh | flyback-: uhum, thank you. previous time I waited long and nobody respond at all |
| 06:28.09 | nkh | :) |
| 06:29.12 | flyback- | good luck |
| 06:29.28 | nkh | thanks, you too |
| 06:43.16 | nkh | !help |
| 06:43.23 | nkh | ibot: help |
| 07:02.18 | Russ | there is a tool to search for things in images |
| 07:02.22 | Russ | shouldn't be too hard to google |
| 07:02.38 | Russ | ibot, are you a bot? |
| 07:02.58 | nkh | I did |
| 07:03.45 | nkh | but the problem is that I can't understand why the offsets in bootargs and size of real partition does not match , and it works! |
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