One reason why I like "Rasberry PI", is that once I make a kernel on an SD card, I can copy it and use it for another "Rasberry PI".

This time, for my experiment, I asked many people to borrow their "Rasberry PI", and making the SD cards. However, "Rasberry PI" could not work well, and it annoyed me for all day today.

Just now, I noticed that the deep valley between the primitive version of "Rasberry PI" and the after version has existed.

However, I make an effort not to think that

"I have wasted time again"

Anyone who works for IT field, lives in daily experience and observation like that. I believe.

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Paradoxically speaking, I think that they are not real "IT Engineer", if they don't live the life,

On the other hand, It's unfortunate that I ,who try to purchase a new SD card, and search the old kernel in the Internet, in order to work the primitive version of "Rasberry PI", should be silly,

Purchasing a latest version of "Rasberry PI", must pay, considering cost of time of mine.

However, "To find a broken device, to want to repair and work it" is, I think, a mind-set of engineers.

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But I don't come to think that "finding a falling person, we want to help him/her" in my case.