[LinuxCNC/linuxcnc PR#500] WIP doc changes prior to making stretch release ‘official’

#1 – andypugh 于 2018-10-01

Will it not work at all with a DVD? I have some machines that seem to refuse to boot from USB (even trying really very hard, and trying all the USB ports). IIIRC the D510MO will only USB boot from back-panel ports, for example. For my most recent LinuxCNC installation I actually went out and bought a £25 USB DVD drive (and that made it very simple)

#2 – KurtJacobson 于 2018-10-01

@andypugh not exactly sure what problem you are referring too, but I have installed jepler’s Debian 9 R10 ISO from a DVD a bunch of times (15+) on various machines with no problems whatsoever.

EDIT: Sorry, I had not read the doc changes. I can confirm that the Debein 9 ISO does indeed work fine from a DVD, both installation and running a live session. I have installed both the R10 and R9 versions from a DVD, and probably earlier versions as well with no problems.

#3 – jepler 于 2018-10-01

I haven’t tried it with physical optical media. It does boot in qemu when given as the “-cdrom” argument, which is a good sign. Perhaps I shouldn’t preemptively delete those sections, but it would be nice if someone verified it works with physical optical media.

#4 – jepler 于 2018-10-01

for those just driving by, the latest images can be found at http://www.linuxcnc.org/testing-stretch-rtpreempt/ though this will change when we make the images official.

#5 – KurtJacobson 于 2018-10-01

This comment is made from a Live session running from a DVD with the Debian 9 R11 ISO.

#6 – jepler 于 2018-10-01

@KurtJacobson thanks so much for testing! I’ll leave the references to using a DVD as install media intact.

#7 – KurtJacobson 于 2018-10-01

@jepler I proceeded to install from the DVD, and It Just Works (TM). I have had trouble with other Linux distros recognizing my non-free WiFi card, but, as usual, your ISO worked seamlessly. It’s the best thing since sliced bread :).

The only time I had any trouble installing it was when I did not have an Internet connection, that was probably with R8 or R9. I guess that is one more thing to test.

#8 – jepler 于 2018-10-03

I’ve heavily updated this PR again. I think everything is right, except the location of the .iso files themselves. Feedback please!

#9 – SebKuzminsky 于 2018-10-03

Oh, and if you push it to the LinuxCNC github repo, the buildbot will build it and show us all the result at http://buildbot.linuxcnc.org/doc/

#10 – andypugh 于 2018-10-05

Not a lot to say, other than “go for it”

#11 – andypugh 于 2018-10-29

Just one thing. If this is uspace then then I think that the pncconf “test/tune axis” button will error, due to #159 only being fixed in master.

#12 – jepler 于 2018-10-29

@SebKuzminsky is complete breakage of pncconf on this image something you’d want to make a new 2.7 release to address?

#13 – jepler 于 2018-10-29

(well, not complete, you just can’t test/tune afaik)

#14 – SebKuzminsky 于 2018-10-30

Yes, this should be fixed in 2.7 and I’ll make a new 2.7 release.

#15 – SebKuzminsky 于 2018-10-30

I cherry-picked 0034fdf into 2.7 and verified that the Test/Tune Axis dialog pops up in pncconf now.

#16 – jepler 于 2018-11-06

@rene-dev your well meaning commit message unintentionally closed their this PR. No harm done, as I can still reopen it.

#17 – rene-dev 于 2018-11-06

Oh, Im sorry. I really have no idea where the wrong number came from.

#18 – andypugh 于 2019-04-08

Where are we with this? We are now in a position where the current Live-CD image doesn’t work properly (repositories at Debian have moved to an archive). I think this is also causing problems with the buildbot (the Wheezy instances fail at apt-get)

#19 – SebKuzminsky 于 2019-04-08

@andypugh note that the Wheezy/RTAI machines in the buildbot were installed from the Wheezy/RTAI/LinuxCNC iso, but no longer use that ISO. The Wheezy non-RTAI machines in the buildbot never used that ISO, of course.

I think there are four things we should do, all independent:
– [x] Fix the /etc/apt/sources.list files on the Wheezy buildbot machines (done).
– [ ] Fix the /ect/apt/sources.list files on the Wheezy/RTAI/LinuxCNC-2.7 ISO (git clone git://timeguy.com/live-images.git -b debian).
– [ ] Make a new RTAI/LinuxCNC ISO (last time i tried this RTAI 5.0.1 on Linux 4.4.0 was not stable enough to use).
– [ ] Finish PR #500, to make the Stretch/Preempt-RT/LinuxCNC-2.7 ISO available to users.

#20 – andypugh 于 2019-04-08

My own attempts to make an RTAI kernel on 4.9.80 have met with little success. (kernel panic on boot).
The main problem I have is, I suspect, finding a working .config.
There are a set of configs in the ShabbyX repo, and in Seb’s repo. But those all seem to be 3.x kernels.
Has anyone found a .config for 4.9 kernels?

#21 – andypugh 于 2019-06-08

The Download link on wlo has been changed to point to the Stretch ISO,
http://www.linuxcnc.org/downloads/
but that (and this) still point to an image in the “testing” repository.
Should the docs (and wlo) point to a file in the /iso/ folder?

#22 – rene-dev 于 2020-02-25

any update on this? is there any reason stretch isn’t the default iso?
wheezy is old, and cant even run on machines a few years old.

#23 – phillc54 于 2020-02-25

I have tried both the r12 and r13 versions and they are missing the dirmngr package which is required to add the archive signing keys for the Buildbot.
Apart from that they work well.

#24 – andypugh 于 2020-03-20

Where are we with this? I suspect this PR has been overtaken by events?

#25 – SebKuzminsky 于 2020-04-20

IMO, we shouldn’t outright switch from Wheezy/RTAI/32-bit to Stretch/RT-Preempt/64-bit as the one install method we recommend, because some machines will get bad latency with RT-Preempt.

We should recommend to our users that they try booting the “Live” part of the Stretch ISO and run latency-histogram. If that’s good enough for their needs they should install that. If it’s not good enough, try with the RTAI ISO. (And if that’s still not good enough, get a different computer.)

#26 – andypugh 于 2020-04-20

That is my intention for 2.8. But probably not Stretch.

#27 – andypugh 于 2021-01-26

Can we conclude that with a 2.8 release on Buster that this PR has been overtaken by events and can be closed?