07-31-2016, 11:37 PM
wahlmat
The links you posted for pictures run malicious scripts. I don't know what that's about. "picture2" pops up an ad in front of the picture blocking most of it, and you can't get rid of the ad (without a trick.) "picture1" ate up 16 gigs of RAM before it locked up and crashed Firefox, when I forgot to close the tab and left it there.
Your symptoms are pretty common and there are other posts that deal with them, so it would be pointless for me to dupicate them. But the simplest problem is that people can't believe it would take that long to boot. So give it 5 minutes before you start worrying. (If you take the microSD out at any time, linux will have a fatal error and quit working and will not continue. At least it does for me. Whatever comes on the screen after removing the SD that doesn't help you find the boot problem, although you at least have a static screen to see what might have happened before.)
The next simple thing is that a weak power supply will sometimes cause a crash at a certain point in booting.
A third simple thing, which happened to me, is having multiple inputs to the monitor. Even when none of the other inputs have anything live on them, the monitor at times gets confused when the video mode changes in the boot process, and the monitor seems to think there is no video and "sleeps." Having anything live on the other inputs really confuses the monitor, and I sometimes have a hellofa time getting it to accept my manual switching to the right input. This monitor is the pickiest monitor I ever had, but it does have a beautiful 4K display.
On formatting:
The formatting is overwritten, and actually replaced with other formatting, by executing dd as in the last step you mention. So whatever you did with the microSD disk previously has no effect.
To explain: what they call formatting is just writing to the disk certain things which happen to be part of what is needed to keep track of the names and positions of files on the disk. Different "file systems" just keep track of their info in different ways. "dd" writes directly to the disk, without regard to whether what it writes may be a file or some part of a "file system." In the last step "dd" copied both the formatting info and the files exactly as it had been on some other disk.
A file system is something like the table of contents to a book. The table of contents is just text like the rest of the book, but unlike the rest of the book, it tells where to find things in the book. So if you had something which just copied all of the text, you would get both the formatting (table of contents) and the files (sections of the book.)
I am pretty sure linux will boot up with no keyboard even attached. "No keyboard" may be a problem for you, but not linux.
The links you posted for pictures run malicious scripts. I don't know what that's about. "picture2" pops up an ad in front of the picture blocking most of it, and you can't get rid of the ad (without a trick.) "picture1" ate up 16 gigs of RAM before it locked up and crashed Firefox, when I forgot to close the tab and left it there.
Your symptoms are pretty common and there are other posts that deal with them, so it would be pointless for me to dupicate them. But the simplest problem is that people can't believe it would take that long to boot. So give it 5 minutes before you start worrying. (If you take the microSD out at any time, linux will have a fatal error and quit working and will not continue. At least it does for me. Whatever comes on the screen after removing the SD that doesn't help you find the boot problem, although you at least have a static screen to see what might have happened before.)
The next simple thing is that a weak power supply will sometimes cause a crash at a certain point in booting.
A third simple thing, which happened to me, is having multiple inputs to the monitor. Even when none of the other inputs have anything live on them, the monitor at times gets confused when the video mode changes in the boot process, and the monitor seems to think there is no video and "sleeps." Having anything live on the other inputs really confuses the monitor, and I sometimes have a hellofa time getting it to accept my manual switching to the right input. This monitor is the pickiest monitor I ever had, but it does have a beautiful 4K display.
On formatting:
The formatting is overwritten, and actually replaced with other formatting, by executing dd as in the last step you mention. So whatever you did with the microSD disk previously has no effect.
To explain: what they call formatting is just writing to the disk certain things which happen to be part of what is needed to keep track of the names and positions of files on the disk. Different "file systems" just keep track of their info in different ways. "dd" writes directly to the disk, without regard to whether what it writes may be a file or some part of a "file system." In the last step "dd" copied both the formatting info and the files exactly as it had been on some other disk.
A file system is something like the table of contents to a book. The table of contents is just text like the rest of the book, but unlike the rest of the book, it tells where to find things in the book. So if you had something which just copied all of the text, you would get both the formatting (table of contents) and the files (sections of the book.)
I am pretty sure linux will boot up with no keyboard even attached. "No keyboard" may be a problem for you, but not linux.