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[solved] can't boot with non-slp c++ python open-cv image
Posted: Tue Apr 07, 2020 7:03 pm
by nilay994
Had trouble booting with the "Raspbian Buster OpenCV image, Google Drive" that was compiled on 5th Feb 2020.
This was solved after I corrected two mistakes:
1) I wasn't using the recommended
win32diskimager flashing tool, but was trying to flash image using ubuntu flashing tool
rufus.
2) Was not flashing it to the recommended (16GB+) SD card, but was trying to flash it on the smaller size 8GB S.L.P. image SD card that came with the starter kit.
The moment I corrected this mistake by
flashing the image to a 64GB SD card using win32diskimager, I could boot instantly. I could also directly compile and run the pre-made c++ code that was already stored in the home directory that came with the image. Thank you @realizator
- available ISO
- iso.png (55.54 KiB) Viewed 8308 times
Re: [solved] can't boot with non-slp c++ python open-cv image
Posted: Tue Apr 07, 2020 7:42 pm
by Realizator
Hi Nilay994,
I'm glad it works now!
I was surprised, that RUFUS is not checking micro SD size before recording an image. Luckily win32diskimager do this. By the way, Balena Etcher is a good tool too!
can't boot with non-slp c++ python open-cv image
Posted: Thu Apr 09, 2020 12:38 pm
by stereomaton
Hum. I have a problem with this image too, but it is a different one.
I downloaded it two times, and each time it seems that the zip file is currupted.
Code: Select all
$ unzip -t cpp-python-2020-02-05.zip
Archive: cpp-python-2020-02-05.zip
warning [cpp-python-2020-02-05.zip]: 982393912 extra bytes at beginning or within zipfile
(attempting to process anyway)
error [cpp-python-2020-02-05.zip]: start of central directory not found;
zipfile corrupt.
(please check that you have transferred or created the zipfile in the
appropriate BINARY mode and that you have compiled UnZip properly)
Could you post a checksum to test the integrity of the downloaded files? (Adding it to the wiki will be a good idea too)
Re: [solved] can't boot with non-slp c++ python open-cv image
Posted: Thu Apr 09, 2020 2:13 pm
by Realizator
Hi Stereomaton,
We have similar issue mentioned on Github here:
https://github.com/realizator/stereopi- ... l/issues/2
Can you please check, if mentioned "7z e ..." instead of unzip works for you?
Re: [solved] can't boot with non-slp c++ python open-cv image
Posted: Thu Apr 09, 2020 3:20 pm
by stereomaton
It does not work better.
Code: Select all
$ 7z e cpp-python-2020-02-05.zip
7-Zip [64] 16.02 : Copyright (c) 1999-2016 Igor Pavlov : 2016-05-21
p7zip Version 16.02 (locale=fr_FR.UTF-8,Utf16=on,HugeFiles=on,64 bits,8 CPUs Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz (806EA),ASM,AES-NI)
Scanning the drive for archives:
1 file, 5277361309 bytes (5033 MiB)
Extracting archive: cpp-python-2020-02-05.zip
ERRORS:
Headers Error
--
Path = cpp-python-2020-02-05.zip
Type = zip
ERRORS:
Headers Error
Physical Size = 5277361309
64-bit = +
ERROR: E_FAIL
Archives with Errors: 1
Open Errors: 1
7z extracts something, but the file looks truncated (2.9G, not recognized as block file).
Re: [solved] can't boot with non-slp c++ python open-cv image
Posted: Thu Apr 09, 2020 4:13 pm
by stereomaton
Using the previous image "Raspbian Buster OpenCV Image (Python code)" (stereopi-opencv-20190912.zip), even originating from Google Drive as the other image, seems to work well both with unzip and 7z (same checksum).
It boots [but I forgot that I needed a mouse to start with it
]
Re: [solved] can't boot with non-slp c++ python open-cv image
Posted: Thu Apr 09, 2020 7:52 pm
by Realizator
Hmmm... Both images has been zipped under Win 10 by means of system zip. Our experience shows, that this method gives a maximum archive compatibility with other decompression software. I will try to archive it by other software.
Re: [solved] can't boot with non-slp c++ python open-cv image
Posted: Thu Apr 09, 2020 8:30 pm
by Realizator
Stereomaton, just for test - can you please check, if
this ZIP file is unpacked Ok for you? I archived this cpp image on Mac.
Re: [solved] can't boot with non-slp c++ python open-cv image
Posted: Fri Apr 10, 2020 5:25 pm
by stereomaton
This link looks good, and the stereopi starts.
It is quite surprising that there are some incompatibilities like that in such old format. It really looked like a transfer error to me, that's why I asked for the checksum of the archive (.zip file). Too late, I did not kept the file anyway.