How much experience in ARM assembler and C/C++ programming do you have? How much experience in writing multi-threading, multi-tasking OS despatchers do you have? It took Linus Torvalds quite a few years to get from the 1991 Linux that he hacked from Andrew Tannenbaum's 1987 MINIX to the stuff we have today.
Life too short NOT to use it. Everything else doesn't work quite as well...
Forgive my ignorance, but not sure how these two statements relate.
When I started using Pi's for projects 6yrs ago I knew a tiny bit of Linux.I just don't develop Aps for it anymore, Raspbian images are just too big to backup.
Why do you backup Raspbian (which is easily replaced) and the empty space on the disk (which is just pointless)?
The good old days of 300baud modems, dialup tones, handshake etcsource by morse
Make a backup of the SD card, when it is the state you want, once. That's all that's needed to get back to where you want the base device. Then simply backup the changes from that.Gavinmc42 wrote: ↑Fri Nov 17, 2017 4:30 pmFirst version used Python plus pygame and i2c-smb etc.
Numpy for number crunching, plus all the graphics images for display etc.
First one was old model A 256Mb, no network connected or needed as it went inside traveling solar trailer.
Driver for i2c setup etc, blacklisting bits and pieces, before I knew how to awk
Someone breaks SD card, burn backup image to new card, a few minutes work, compared to days, hours rebuilding from scratch and missing a /etc file edit or forgetting an image file etc
PiCore versions are a few dozen shell script files Awking and SEDing html files live, web pages etc,
Networked, yippee can fix from 100Km away
Still some /etc edits.
Ultibo - few minutes = one new kernel with complete ap+OS, complied from source.
Only needs boodcode.bin, fixup.dat ,start.elf, sometimes config.txt.
Generally the kernel.img is smaller than start_x.elf, back it up ~3MB.
I have even made mods in a few minutes and emailed new kernel to Russia
You want to try emailing Raspbian image?
Hmm, wonder if I can send Ultibo source by morse?
Self hosting should be possible
Would be fun to try that on a Pip.
Adding them manually sucks, it can take hours, days to get things running again.One also has manually added packages
*Developing an OS
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