On Saturday 04 May 2019 11:08:52 pm Alan Condit wrote: > Gene, > > I got my SSD and hooked it up to the USB3 port. I tried to follow the > directions in “Building LinuxCNC”. After a bunch of time figuring out > what I was missing in required dependencies, it took about 10 minutes > to build linuxcnc-uspace (linuxcnc-uspace_2.8.0~pre1_arm64.deb) and it > took a total of twenty-five minutes to figure out the dependencies > required to install and install the debs. > > Yea!!! > Alan > Hip hip hooray! Thats for arm64, not an armhf though. So I can't use it on the pi3b. But if its reliable, maybe it could replace the constantly crashed odroid Jon K. had in the buildbot. I've not had an lcnc 2.8-pre update since last September for the pi. I could, if I could find my round tuit, maybe replace the pi with a rock64, but the spi cable would have to grow about 4", and the rpspi.ko module updated to run on the rock64. The included headers are completely different and it didn't take me long to give up, too many years on the wet ram... > > Date: Sun, 28 Apr 2019 03:03:38 -0400 > > From: Gene Heskett <[email protected]> > > To: [email protected] > > Subject: Re: [Emc-developers] buildbot for arm64 > > Message-ID: <[email protected]> > > Content-Type: Text/Plain; charset="utf-8" > > > > On Saturday 27 April 2019 23:49:39 Alan Condit wrote: > >> Gene, > >> > >> I built the kernel on the uSD. > >> > >> I have a 32gb SSD that doesn?t seem to want to work. > > > > Likely used up, some have a pretty poor write life. > > > >> So I ordered a > >> 240gb SSD and a SATA to USB3.0 case from Walmart. I started to > >> order a 120gb SSD but the shipping was almost as much as the > >> difference in price between the smaller one and the larger one and > >> I got free shipping with the larger one and case. > >> > >> I have an 80gb 2.5? HD (usb2.0) that I tried flashing like a uSD. > >> It wouldn?t boot but I was able to mount it and access the files. I > >> guess I?ll just have to wait till my SSD arrives. > > > > I've had pretty poor luck with the 2.5" spinning rust drives. The > > rock64 killed a wallmart 1Tb 2.5" usb3 drive with the first kernel > > build. Something is wrong with the rock64's usb3 socket according to > > the kernel experts, but it still works ok with usb2 stuff, and thats > > what I was useing when I built a kernel in an hour. > > > >> I bought the 16gb EMMC also, but I also bought the usb to EMMC > >> programmer. I just flashed the EMMC with Etcher. I will reflash it, > >> when I am satisfied that I have the OS and linuxcnc working. The > >> usb programmer has the same kind of socket on it that the board > >> has, so you just mount the EMMC on the programmer and flash it like > >> a uSD, then take it off the programmer and mount it on the board. > >> When it is mounted on the board the board will boot from it instead > >> of the uSD. > > > > I didn't see that, or I would have bought it. Inferred from the > > propaganda was that the rock64 could do that by itself. But if a dd > > like program could do it, it seems to me dmesg ought to ident the > > eMMC so dd would have a of=/dev/target. But it doesn't seem to > > recognize it. Does yours before its been programmed? > > > >>> Date: Sat, 27 Apr 2019 11:54:19 -0400 > >>> From: Gene Heskett <[email protected]> > >>> To: [email protected] > >>> Subject: Re: [Emc-developers] buildbot for arm64 > >>> Message-ID: <[email protected]> > >>> Content-Type: Text/Plain; charset="iso-8859-1" > >>> > >>> On Saturday 27 April 2019 11:08:20 Alan Condit wrote: > >>>> I have just completed building 4.19.31 LTS preempt_rt for my > >>>> RockPro64 (on my RockPro64). I would love to have access to > >>>> linuxcnc builds from a buildbot for arm. > > > > The Odroid's that they were using to build the armhf for me, were a > > huge crashing headache for John K. so he took them back out of the > > buildbot farm in Sept 2018. So if I want a new LCNC for my pi, I'm > > going to have to git clone master and build it myself. I don't > > relish the thought, with no more memory than the pi has, it will be > > a make -j2 at the most and several hours, and I expect before I do > > that, I'd better invest in a 128 Gb u-sd, clone that 32 its running > > on now to it with dd, and let resize2fs adjust it to use the whole > > card. > > > > Theres supposed to be a one time fuse in the pi which will make it > > boot from a usb2 drive, but I have run that command to blow that > > fuse 10 or more times w/o its working, so its still stuck booting > > from the u-sd. I think my pi's are too early. And I'm still trying > > to decide if the pi4 was an April 1 release, and if its real, is it > > back compatible? It will take more research, probably with the bull > > shit filter turned way up. > > > >>>> It took about 8 hours to > >>>> compile the kernel, so I am not looking forward to building > >>>> linuxcnc on my RockPro64. I could load machinekit but they seem > >>>> to never have a stable release and almost no documentation. > > > > So I've noted... > > > > Take care Alan > > > > 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) > > Genes Web page <http://geneslinuxbox.net:6309/ge
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