On Wednesday 03 July 2019 17:08:05 Gene Heskett wrote: It was recommended I move these questions to the debian-user list, so here it is.
> On Wednesday 03 July 2019 16:07:04 Andreas Jellinghaus wrote: > > No idea. Sorry if I missed a mail with the reasons why stock debian > > wouldn't work? > > The application needs a realtime kernel as its controlling metal > cutting machinery. > > > On my ordroid-hc1 I build an sd card image on my deskop as described > > in the wiki: > > https://wiki.debian.org/InstallingDebianOn/OdroidHC1 > > > > And with apt search I can see a realtime kernel is available: > > > > linux-image-rt-armmp/testing 4.19+105 armhf > > Maybe for your odroid, but the newest for raspian armhf is 4.19.50. > > I bought an odroid for this project around 3 years ago, but bricked it > trying to get linux installed. What the don't tell you is that its a > UEFI board, and the linux installers of the day didn't have a clue > what to do about UEFI. So I've got a C2 that cost me two months to > get, that because those folks are downright dishonest in not telling > you that in their advertising, only in the bios did I discover that it > had a TPM chip in it, which if its disabled in the bios, does not > bypass that crap, bricking it instead and worse, you can't reverse it > without spending another $125 for a jtag programmer. I already had a > $100 bill in it and was not impressed enough to spend any more on it, > so I next bought a pair of pi3b's. Which are running the machine > fairly well except for the video frame rate. You can count the frames > per second but you only need one hand as full screen its only about 2 > per second. Buster supposedly has new, faster drivers, but so far I > have yet to get a realtime kernel and buster to meet on the same u-sd. > > > Linux for ARMv7 multiplatform compatible SoCs (meta-package), > > PREEMPT_RT > > > > Maybe that could work for you? > > Unforch the armhf .deb of 4.19.50-rt-preempt-v7 I have built was not > built to be installed by a u-boot aware builder. > > > Good luck with your project. > > > > Andreas > > > > Am Mi., 3. Juli 2019 um 21:15 Uhr schrieb Gene Heskett > > <ghesk...@shentel.net > > > > > I just yesterday watched RealtimePi make me an image for arm-v7. > > > It went all the motions of building a 4.4.114-rt-v7 kernel out of > > > a arm-hf buster zip containing a 4.19.50-v7 kernel. So knowing > > > the 4.4.114-tr-preempt kernel would be replaced if I ever got the > > > network to work, I added a /etc/apt/preferences.d/kernel.pref to > > > pin the kernel. > > > > > > But imagine my surprise when I plugged that u-sd into the pi and > > > booted it, one of the first things I note is that the images > > > installed kernel is a 4.19.50-v7, which may be straight from the > > > raspian-buster-zip RealtimePi started with. > > > > > > So, how do I convince CustomPiOS to both build the 4.19.50, with > > > realtime patches applied, and then hand it back to RealtimePi to > > > use building the image? I have done that independently from > > > RealtimePi but no clue how make either of the guysoft utilities to > > > actually use it. > > > > > > Help please, and thank you. > > > > > > 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> > > 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>
