On Sunday 08 September 2019 13:46:11 Gene Heskett wrote: > On Sunday 08 September 2019 11:34:20 Gene Heskett wrote: > > On Sunday 08 September 2019 08:35:51 Thomas Schmitt wrote: > > > Hi, > > > > > > i now realize that Gene by "rp4" indicated some known Raspberry > > > system. So my proposal about netboot might be hopeless according > > > to the answers of David and didier.gaumet. > > > > > > ------------------------------------------------------------------ > > >-- -- But there is technical stuff left to discuss: > > > > > > I wrote: > > > > > SD card seems to be the intended target for netboot images. > > > > > http://ftp.debian.org/debian/dists/stable/main/installer-arm64 > > > > >/c ur rent/images/netboot/SD-card-images/ [...] > > > > > Those are not ISO9660 but rather partitioned images with a > > > > > FAT32 filesystem: > > > > > [...] > > > > > Device Boot Start End Sectors Size > > > > > Id Type firmware.a64-olinuxino.img1 * 2048 199999 197952 > > > > > 96.7M c W95 > > > > > > Gene Heskett wrote: > > > > What does this do that the iso doesn't, > > > > > > Those are images for disk-like devices only and they don't look > > > like they are supposed to boot directly via EFI. The Debian arm64 > > > ISOs on the other hand offer typical EFI boot equipment. > > > > > > > and note it takes a windows machine to follow those > > > > instructions. > > > > > > If you mean > > > > > > http://ftp.debian.org/debian/dists/stable/main/installer-arm64/cur > > >re nt /images/netboot/SD-card-images/README.concatenateable_images > > > then immediately before the MS-Windows instructions, i read: > > > > > > "To create a complete image from the two parts on Linux systems, > > > you can use zcat as follows: > > > zcat firmware.<board_name>.img.gz partition.img.gz > > > > complete_image.img " > > > I inspected both image parts by gunzip-ing them: > > > > > > $ gunzip firmware.a64-olinuxino.img.gz > > > $ /sbin/fdisk -lu firmware.a64-olinuxino.img > > > ... lots of message lines ... > > > $ gunzip partition.img.gz > > > $ sudo mount partition.img /mnt/fat > > > $ find /mnt/fat | less > > > > > > So i would simply provide another useless use of cat with my > > > superuser hat on: > > > > > > # cat firmware.a64-olinuxino.img partition.img | dd bs=4096 > > > of=/dev/sdf1 > > > > > > (Insert "sudo" where needed, if your system has no superuser.) > > > > > > > I think what I will do next is send gparted to create a gpt > > > > table with a fat32 first partition of a gig or so, and do an > > > > ext4 on the rest of it. Then put the iso on sdf. > > > > > > The ISO brings its own partition table. Your gparted work will be > > > wasted. See the second grey box at > > > https://wiki.debian.org/RepackBootableISO#arm64_release_9.4.0 > > > which shows fdisk output for arm64 ISOs. > > > (Nothing did change in the ISO partitioning for 10.0 since 9.4.) > > > > > > > Since these come as NTFS formatted cards these days, > > > > > > Filesystems on the card get overwritten by the ISO or at least > > > lose their entry in the partition table, if they are not reached > > > by dd's work. > > > > > > > I would think that > > > > writing the iso to /dev/sdf would at least start the install, > > > > and the installers disk utils could take care of the rest. What > > > > the iso wrote should be all that counts. > > > > > > As said, Debian arm64 netinst ISOs offer boot entries for EFI. > > > Googling "raspberry rp4 efi" shows that the combination of > > > Raspberry and EFI is exotic. > > > > > > > I have also been thru your installer docs > > > > > > Mine ? I only write docs about things like optical drives or ISO > > > 9660 filesystems. > > > By the latter i happen to be involved in the first boot step of > > > most Debian ISOs. > > > > > > > I feel like I'm playing pin the tale on the donkey, blindfolded. > > > > > > As said, i think that David and didier.gaumet show more clue than > > > i do. So try to get a donkey with tail already attached. > > > > > > I understand that David's advise is to look at > > > https://raspbian.org/RaspbianImages > > > https://www.raspberrypi.org/downloads/raspbian/ > > > > > > > > > Have a nice day :) > > > > > > Thomas > > > > I'll have to take your word for it. > > > > I now have a 5 amp. 5.09 volt supply, hot on gpio pin 2, common on > > gpio pin 6, and I just rewrote the debian-10.0.0-armhf-netinst.iso > > to /dev/sdf, took it to the rpi4b, and got that same single, 10ms > > maybe, flash of the green led. Next I try this .img, > > 2019-06-20-raspbian-buster.img > > > > And I restarted the ssh daemon on the rpi3, running stretch, so > > maybe I can log into it and get something done yet today. gah, damn > > raspian, passwds no good. > > > > Change that, reboot after enabling ssh. fixed pw, loggged in. > > > > And I |think| the raspian is booting. After quite some activity of > > the green led, its lit solid now, but no damned video. Looks like > > the new monitor I bought isn't working, its stuck on the vga input, > > and the menu button to change it isn't working, so back to wallies > > with $80 worth of junk. > > > > Later. > > > > Cheers, Gene Heskett > > Took it back and got another, same exact results, monitor says no > input, menu button does not work so I can't select/test the other > input. > > $75 ONN 22" 1920x1080 led backlighted monitor. HDMI/VGA inputs. Is it > working for anybody? > > Hmm, go see if it works on the lathes pi3b. Works on the pi3b, but the > image is slightly lower contrast. Menu button works. > > So the pi4b isn't making any, wrong mode or enough video. Can I edit > config.txt to fix that by bringing the card in to this machines card > reader and mounting it? > > Suggested settings? > > Thanks to anybody thats made it work. > > Cheers, Gene Heskett I found some stuff on the raspi forum that should have helped, didn't. But now I go back and read:Do not set hdmi_safe=1 as that overrides many of the previous options. So I need to recomment that line. I have: config_hdmi_boost=4, but then it says default for pi3's is already 5. Can go as high as 9 hdmi_force_hotplug=1, in case the cable is funkity.
Maybe later. I need a nap. 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>
