[Machinekit] Machinekit package repo

[schoone...@btinternet.com]

Hi All, The changes to switch over to John Morris's brilliant cross-builder docker container, are complete for machinekit (https://hub.docker.com/r/dovetailautomata/mk-cross-builder/) In conjunction with the recent changes to machinekit to use the new czmq API (John Morris, Alex Rossler and myself) this means the following for users. There are now Debian Stretch packages of machinekit for amd64, i386 and armhf These do not require any other special packages, all dependencies are available from the standard Debian repos. (save a rt-preempt kernel for armhf - see below) There are no Xenomai packages for Stretch. The 4.x.x-rt-preempt kernels are good enough to provide a stable servo thread on BBB or DE0-NANO-Soc Stretch would require Xenomai3, there are none available and machinekit would not run with them without a lot of work. The PRU on a BBB or the FPGA on the DE0-NANO provides hardware stepgen etc, so  rt-preempt is perfectly adequate. There are a full set of Debian Jessie packages for machinekit for amd64, i386 and armhf These do require a special build version of libczmq4, which is in the repo They no longer require special rt-preempt kernels from the repo or elsewhere for i386 or amd64, because Debian have backported their Stretch kernels Simply add the jessie-backports stanza to your apt sources http://www.machinekit.io/docs/getting-started/install-rt-kernel-amd64/ Xenomai packages are still provided for Jessie for backward compatibility. Raspbian packages however are no longer specifically provided. This is because whilst Raspbian continues as a distro, it uses Jessie armhf binaries. It was hugely wasteful of time and disk space to build and hold 2 sets of packages that were byte identical except for the distro name. Just change your apt sources stanza from raspbian to jessie if you want to continue to update packages. It does work, a user Petros tried it for us on this thread https://groups.google.com/forum/#!topic/machinekit/vSPXdPspyEs All the existing packages will be retained, so if you want, you can just do nothing. http://www.machinekit.io/docs/getting-started/APT-packages-raspbian/ Debian Wheezy is no longer supported or being built for, as per the previous announcement All support from Debian for Wheezy will cease in May 2018 anyway and it currently has absolutely minimal LTS, with no updates or backports. Machinekit would not now work unless a special backport of the czmq library were made and given its life expectancy, that would be unproductive. All the existing packages will be retained, there will just not be any updates. Important re armhf: There were difficulties in upgrading on armhf in the initial packages - this was caused by apt running the postrm script from the old package after the new package was installed, deleting some elements. This is now fixed but if you have an affected package already installed on armhf, the upgrade may fail. You simply need to remove it first and then re-install packages. sudo apt-get purge machinekit* sudo apt-get update sudo apt-get install machinekit machinekit-<flavour> Subsequent upgrades will work as intended. regards -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to machinekit+unsubscr...@googlegroups.com. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout.