Arm-dev

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Why RPi3 under Arm32 rather than AArch64?
by Gordan Bobic 04 Jan '18

04 Jan '18

They are not the same, one is a disk image, the other is a tarball of the rootfs. I'm putting together a working aarch64 image for myself at the moment, if you are not averse to something that is still work in progress. I can put together an image that works with u-boot UEFI today. What I'm working on at the moment is getting Tianocore UEFI working, because that would put it in line with actually supported systems. Gordan On Thu, Jan 4, 2018 at 6:26 PM, Christopher Ursich <christopher.ursich@ ursichfamily.org> wrote: > Hi, all. First-timer here. > > I am setting up a new Raspberry Pi 3. When I review the AltArch pages, I > see that most of the RPi3 coverage is categorized under Arm32, including > > https://wiki.centos.org/SpecialInterestGroup/AltArch/Arm32/RaspberryPi3 > > I'm under the impression that the RPi3 is actually a AArch64 system. I'm > not sure whether I should use > > http://mirror.centos.org/altarch/7/isos/armhfp/CentOS-Userla > nd-7-armv7hl-Minimal-1708-RaspberryPi3.img.xz > > versus > > http://mirror.centos.org/altarch/7/isos/aarch64/CentOS-7- > aarch64-rootfs-7.4.1708.tar.xz > > Can a more-experienced person clarify this for me? > > Thanks, > > Chris Ursich > > > _______________________________________________ > Arm-dev mailing list > Arm-dev(a)centos.org > https://lists.centos.org/mailman/listinfo/arm-dev > >

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Mainline 4.9.x Kernel bootable on X-Gene, Pi 3 and Others
by Gordan Bobic 02 Jan '18

02 Jan '18

As I mentioned on a different thread recently, I am working on putting together a working Pi 3 image. It's still work in progress, but as of 4.9.73 here: http://ftp.redsleeve.org/pub/misc/kernel/aarch64/ I have a kernel that boots from UEFI grub on MP30-AR0 (u-booot -> Tianocore -> grub2-efi) and Pi 3 (u-boot UEFI -> grub2-efi), still working on getting Tianocore working on the Pi 3. The kernel will probably work on a lot of other boards, too, but I don't have any other aarch64 hardware the hardware so can't test for sure. Fully working image hopefully in a couple of days, and _maybe_ an installer ISO respin after that. Gordan

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CentOS 7 on Raspberry Pi 3 with motion and the Pi Camera module
by Philip Taylor 01 Jan '18

01 Jan '18

Hi, I’m new to this list so I hope this isn’t a repeated question, but my searches haven’t found any matches. I’m trying to use CentOS 7 on a Raspberry Pi 3 with motion and the Raspberry Pi camera module. Has anyone done this successfully, or is it not a supported configuration? Thank you. Philip.

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kernel-generic vs kernel-rpi2
by Kristján Valur Jónsson 08 Dec '17

08 Dec '17

> > BTW, we never had any image for rpi2/rpi3 that was using the > kernel-generic repo Ok, the values are set in /etc/yum/vars. [root@dc03 vars]# ll total 12 -rw-r--r--. 1 root root 6 Dec 5 2016 infra -rw-r--r--. 1 root root 8 Oct 31 10:00 kvariant -rw-r--r--. 1 root root 2 Sep 1 07:02 releasever Seems that the "kvariant" was last modified end of october, probably by some update or other. I'ver reset it to 'rpi2' and hoping for the best. -- Kv, Kristján Valur Jónsson, RVX

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kernel-generic vs kernel-rpi2
by Kristján Valur Jónsson 04 Dec '17

04 Dec '17

> > Both repositories are following now the 4.9.x LTS branch, but : > - kernel generic is built from vanilla/upstream kernel from kernel.org , > so works on all boards supported "upstream" > - rpi2 kernel is the one built from https://github.com/raspberrypi/linux > (that also rebase from upstream LTS but with their patches added in for > the rpi2/rpi3) Lucky that the RPi seems to run, without the specific patches from the foundation. > BTW, we never had any image for rpi2/rpi3 that was using the > kernel-generic repo Weird. I installed in in mid july when I saw it, and downloaded from here http://mirror.centos.org/altarch/7/isos/armhfp/. Something must have gotten screwed up, the CentOS-armhpf-kernel.repo is dated from sept 1st. I'll just swap the baseurl around, update and hope for the best :) -- Kv, Kristján Valur Jónsson, RVX

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kernel-generic vs kernel-rpi2
by Kristján Valur Jónsson 04 Dec '17

04 Dec '17

Hi there. I have two Rpi3s running Centos7 but one from a few months ago. I just ntocied that the kernel repos are different. the older one has a baseurl ending in kernel-generic, while the new one ends with kernel-rpi2. Which one is correct? I notice that they are not updating to the same kernel versions. -- Kv, Kristján Valur Jónsson, RVX

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Just getting started, Looking for pointers.
by Daniel Baker 27 Nov '17

27 Nov '17

Howdy Y'all, Where would be a few good places to start with the Pine64? My Wife bought it for me with the initial crowd-funding and I am just now getting to playing with it. Any good Centos / Ubuntu images? -- Peace and God Bless, - Dan. ######################## DevOps on a Starship: vim /cookbooks/hyperdrive/attributes/alignments.conf git add . commit -m 'Automation is the new Magick.' git push knife cookbook upload hyperdrive

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[Question] CentOS7.4 for ARM update plan
by Zhou Wang 27 Nov '17

27 Nov '17

Hi, I am afraid in the right place to ask this question. Redhat7.4 for ARM64 already released: https://access.redhat.com/articles/3158541 Before this, CentOS7.4 for ARM64 released: https://wiki.centos.org/SpecialInterestGroup/AltArch/AArch64 As CentOS7.4 just took one internal version of Redhat7.4 as its release version, we should at least backport patches after above Redhat7.4 internal version to CentOS7.4. My question is that is there a plan to backport these patches to CentOS7.4? Or where can I find such plan/schedule? Thanks a lot for any help, Zhou

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Introducing 2017’s extensions to the Arm Architecture
by Jeffrey Walton 27 Nov '17

27 Nov '17

In case it did not make your radar: https://community.arm.com/processors/b/blog/posts/introducing-2017s-extensi… It looks like ARMv8.4 will also provide hardware support for China's SM3 (hash) and SM4 (block cipher), like they support SHA and AES. Jeff

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fake-hwclock
by Kristján Valur Jónsson 21 Nov '17

21 Nov '17

Hi there. I'm running CentOS7 on an RPi3 without hardware clock. I found no suitable "fake-hwclock" (as avilable for raspbian) on the internet, so I implemented my own systemd unit for that. Check out https://github.com/kristjanvalur/fake-hwclock if you're interested. Cheers! -- Kv, Kristján Valur Jónsson, RVX

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