On Wed, 2019-09-18 at 09:04 -0400, Gene Heskett wrote: > On Wednesday 18 September 2019 07:46:38 Gene Heskett wrote: > > > On Tuesday 17 September 2019 22:05:28 David wrote: > > > On Wed, 18 Sep 2019 at 08:17, Gene Heskett <ghesk...@shentel.net> > > > > wrote: > > > > On Tuesday 17 September 2019 15:07:30 ghe wrote: > > > > > On 9/17/19 11:01 AM, Gene Heskett wrote: > > > > > > And that results in exactly the same effect, partitiuon 1 is > > > > > > an iso9660 image, and I don't believe the rpi-3b supports > that > > > > > > for a boot medium. dos/fat32 only I believe. Obviously I got > > > > > > those images from the wrong place in the debian file > system. > > > > > > So I need to remove these, but where do I get the correct > > > > > > versions? > > > > > > > > > > From https://www.raspberrypi.org/downloads/ ? > > > > > > > > > > Use the damn NOOBS and quit fighting with your Pi(s)! NOOBS > > > > > takes a while, and it doesn't install things the way you want > > > > > them to be, but it does work -- you end up looking at a > working > > > > > Buster desktop. No confusion or cardio stress involved. > > > > > > > > > > There are a lot of recipes on the web to make things all > better. > > > > > And 'rm' works pretty well, too. > > > > > > > > I'd luv to give it a try, since I've never tried it, but > unpacking > > > > the NOOBS to an sd card seems to be a secret, so what linux > > > > command will unpack the .zip and put it on the card? > > > > > > Hi Gene, > > > > > > I suggest a first step is just get your Pi 4 running > > > the simplest way possible. Just to see it working first > > > before starting to customising it in any way. > > > > > > You don't need NOOBS, just Raspbian. > > > Note: Raspbian is not Debian. > > > > > > Just do this: > > > > > > 1) get the zipped image > > > $ curl -L -o raspbian_latest.zip > > > downloads.raspberrypi.org/raspbian_latest > > > > > > 2) verify the download > > > $ sha256sum raspbian_latest.zip > > > 6a1a5f20329e580d5161a0255b3d4163db6f56c3997e1c3b36bdd51140bd768e > > > > > > 3) write the SD card > > > (replace my /dev/sd_ with your SD card device, > > > without any partition number): > > > > > > # unzip -p raspbian_latest.zip | dd bs=4M of=/dev/sd_ > > > status=progress conv=fsync > > > > This last is what I was looking for, thank you, and I'll give it all > a > > shot later today. In fact, card is written. > > > > > and that will produce a SD card that > > > will boot a Raspberry Pi 4 hardware into a Raspbian desktop. > > > > If I can get video out of it, I am about convinced that the only > > micro-hdmi adapter I have is a $16 dud I got from Wallmart. > > > > Banggood says 2 more adapters and the big, whole top heat sink won't > > be here till around the 3rd. > > > > So if this doesn't work, I'll just shelve it till then. Maybe > > forever, I'm about burned out on this. I've written several cards, > > without ever seeing a single byte of video on a monitor that works > > fine when driven by a pi-3b. > > > > 2 possible differences. Its not powered correctly when powered from > > gpio pin 6=gnd, and 2=5.11 volts. A pi3b has been running that way > for > > 2+ years and the gpio is said to be 100% pi3b compatible. Argue > with > > me on that, this rp-4 came with no docs. > > > > I do not have a psu with an OTG connector. Or this $16 wallmart > > adapter is duff. > > > > Does anyone have some typical scope waveforms pix that would show > what > > a working hdmi socket has for signals? > > > > Now its morning locally, time go see about some caffiene for me and > > the missus. Thanks all. > > > Now I have a puzzle, that rpi-4 is powered and is on my local net, was > at > a duplicate address because the card was at one time in the rpi-3, but > a > login from here didn't look like I was looking at the same machine, > so > from here I went trolling thru proc and discovered it was an rpi-4!!! > > So I changed its ipv4 address, hostname, domainname, added itself at > its > new address to its /etc/hosts file and rebooted it. Added it to my > hosts > file and ssh -Y pi@rpi4, fixed my known_hosts file, and I am now > logged > into it at its new address. A cat /etc/issue says its running a > raspbian 9 (stretch). > > And there's still no video on the monitor its feeding. So I am > encouraged, but where the heck is the video?
The instructions that came with mine insisted that the HDMI cable be attached using the HDMI0 port, on the left looking at them with the board top up. The IDs are stenciled on the top of the board but the letters are about 1/32" high. If that's the way you have it, I would suspect a defective cable or rpi board. Tom Dial > > I've a C.E.T.'s typical test gear here, including a gigahertz > sampling > scope, so test ideas welcomed from folks more rpi4 knowledgable than > I. > > And time to make more coffee. Like Calahan's Bar, elixer of the > gods, > but without the alcohol. > > > Cheers, Gene Heskett > > > Cheers, Gene Heskett > -- > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author) > If we desire respect for the law, we must first make the law > respectable. > - Louis D. Brandeis > Genes Web page <http://geneslinuxbox.net:6309/gene>
