arm April 2011

arm@lists.fedoraproject.org

16 participants
11 discussions

Fedora ARM 12 on IGEPv2 (Beagle Board clone)
by Matthew Wilson 01 Jan '16

01 Jan '16

Hi all, I would like to introduce myself to the group. I have recently received an IGEPv2 board [1], which is based on the Beagle Board, but with wifi, bluetooth, ethernet, and more RAM. I'm still at the "wow, it's tiny and it runs Linux" stage. I should get a bit more time over the next month and Christmas to play around properly with it. I'm new to embedded development, but neither new to Linux nor ARM (writing my first ARM assembly some 15 years ago). However, for the past 6 years I've not even built a Linux kernel, preferring to use the default kernel in Fedora for simplicity :) Firstly, a thank you to those involved in Fedora ARM for getting it to this stage. If I get the time, I'd really like to contribute some (probably small) effort to help get Fedora ARM working well on the IGEPv2 and Beagle Board. As I progress, I'd like to know what I can do to help. In the meantime, I have some questions. Apologies in advance if these seem simple. 1) There are various different kernels from different sources. I'm used to there being a small set of "right" kernels (that is, Fedora's idea of "right") for x86. I fully appreciate that different ARM-based boards are quite different in capabilities (like different instruction set variants). a) Is there likely to be some standardised vanilla Fedora ARM kernel source? (Or is that simply the source RPM available for Fedora?) Then patches /could/ be offered for the more common systems (e.g. Beagle Board & clones, SheevaPlug). b) Would it then make sense to offer these as pre-built RPMs for common systems? c) Is there any guidance on which version is good to use as a base? I've seen quite different kernel versions being used (from 2.6.27 to 2.6.31). 2) I understand a little bit about the different calling conventions, FP differences (e.g. soft FPU versus VFP), and instruction set differences (v5 versus v7). a) Can the kernel can be safely built with a different instruction set targeted? (I know there are different optimisation options passed to GCC. Apologies if this seems a bit newbie-ish.) b) For FP-heavy programs (e.g. ogg encoding), is it possible to build the packages with VFP/NEON but still get them to work in a soft FPU system? I'd imagine any call to an external library would have to somehow be defined to use a different calling standard. 3) There seem to be some missing dependencies in the packages in the current Fedora ARM repository. For example, emacs is requiring libotf, which doesn't seem to be there in the repository. And likewise with the xorg-x11-font* packages needing ttmkdir. I'm confused as to how the RPM could have been successfully built without it. What am I missing? 4) I see there has been some discussion over unaligned data access. (Oh, I remember that from the ARM2 days.) It seems as if the Cortex-A8 cores allow unaligned data access when set up to do so [2]. Does this, in any way, help with the compatibility of packages targetting Cortex-A8? 5) I've managed to get various source packages missing from the Fedora ARM repositories to compile successfully (natively). I guess there is a reason why there are not in the repos right now -- is that reason down to time and priorities, or is there some blocking bugs with many of these packages? I look forward to being able to contribute something back into Fedora! Kind regards, Matthew [1] http://www.igep-platform.com/index.php?option=com_content&view=article&id=4… [2] http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0344j/Beihgi…

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Fwd: Fedora ARM with new kernel 2.6.37 on Toshiba AC100
by intersolar-direct 28 Apr '11

28 Apr '11

5 7

How to learn how to help Fedora ARM?
by Alexjan Carraturo 27 Apr '11

27 Apr '11

Hi to all, my name is Alexjan Carraturo, and I'm involved in Fedora as Ambassador. For some work reason, I start to work with Arm Processor (expecially Cortex A9, but not only). I use to use x86 version of Fedora, without significant problem, But, Fedora ARM it's a little bit different, and I would like to help, especially in packaging and similar operation but; 1) I don't know how to package software 2) I don't know where to find documentation. So, I would like to start studing all I can need to became a good Fedora ARM (and non only) Packager. Can you adivice how to find official (or similar) documentation and guidlines, that explain correctly and fully the package processing and details? I search on google, but find a lot of things almost non clear or not complete. Thank you Alexjan.

5 8

Fedora ARM at Seneca: Slowing Down to Speed Up
by Chris Tyler 25 Apr '11

25 Apr '11

A short note to let you know what's up at Seneca as far as Fedora ARM... This week CDOT (our research centre) is shutting down to give our research staff a break and to let faculty do end-of-semester cleanup and transition work. The next week (starting May 2), Paul Whalen and I will be joined by three new CDOT staff working on Fedora ARM. It will take a few days to bring the new folks up to speed, but then I anticipate that we can pick up the pace substantially. (We'll also benefit from new infrastructure tools put in place by the SBR600 Software Build & Release course, including icinga/func/puppet for the ARM builders). All that to say that we have a short slowdown to prepare for a speed up. Next is a short RC cycle then final release for f13, followed by simultaneous f13-updates and f14 efforts. -Chris

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Installing Fedora 13 on a Pogoplug
by Niels de Vos 22 Apr '11

22 Apr '11

Hello all, about two weeks ago there was an email about an offer on the pink Pogoplug. Although I did not get that particular offer, I noticed that the systems were quite cheap in the UK as well. My experience can be found on the following wiki page: - https://fedoraproject.org/wiki/Architectures/ARM/PogoplugUSBDisk Do not hesitate to update/extend/correct where suitable, it's a wiki after all. I hope it's useful for someone. Cheer, Niels

1 0

Kirkwood kernel not functioning on the pink Pogoplug?
by Niels de Vos 19 Apr '11

19 Apr '11

Hello Dan, the kernel or initrd you have listed on https://fedoraproject.org/wiki/Architectures/ARM/Team_and_Developers#Target… does not seem to boot my new Pogoplug. The 2.6.36.1 for the GuruPlug from https://fedoraproject.org/wiki/Architectures/ARM/F13-ARM-Beta2#Kernel does (no initrd needed). Maybe the *plug from the "Targeted devices" table should be more restrictive. As the Pogoplug does not have a lot of troubleshooting capabilities (no monitor or serial port), the cause of the non-booting is unclear to me. I have setup u-boot with netconsole, but it only shows that the kernel and initrd are getting loaded, after that, it stays quiet. I will document the steps needed to install Fedora on a Pogoplug in the wiki in the following days. Until than, some details can be found on my blog at http://blog.nixpanic.net/2011/04/booting-pogoplug-with-fedora-arm.html . Cheers, Niels

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Re: [fedora-arm] Packages not available for F-13 ARM that OLPC uses
by Peter Robinson 13 Apr '11

13 Apr '11

Hi Martin, To break this list down a bit... On Tue, Apr 12, 2011 at 8:58 PM, Martin Langhoff <martin.langhoff(a)gmail.com> wrote: > I just ran a rough comparison of the packages we currently include in > our F14 builds vs what's available in the F13-beta2 ARM repository. > > Some packages are OLPC-specific, and I note them below. Others may > have changed name between F13 and F14. OLPC. Some of these are in Fedora so I'm not sure they're all "olpc" but rather just not in F13. > 'PolicyKit-olpc', // olpc > 'batti', // olpc-specific > 'bootfw-q3a62', // olpc-specific > 'ds-backup-client', // olpc-specific > 'kernel', // heh :-) > 'olpc-bootanim', // olpc x86 only > 'dmidecode', > 'xorg-x11-drv-chrome' // ignore New in F-14 > 'dconf', > 'folks', > 'gdk-pixbuf2', (this was split out of gtk2) > 'laughlin-backgrounds-gnome', // release specific? <--- Yes! > 'laughlin-backgrounds-single', > 'libjpeg-turbo', Most of these should be easy fixes, or even fixed already. Not sure about java though! > 'abiword', 'libabiword' > 'atkmm', > 'avahi-libs', > 'csound', 'csound-python', > 'empathy', > 'espeak', > 'inkscape', > 'java', > 'kbd-misc', > 'libassuan', > 'libffado', > 'libmodman', > 'libmount', > 'olpc-kbdshim', > 'olpc-powerd', > 'olpc-powerd-dbus', > 'olpc-runin-tests', > 'portmidi', > 'prelink', > 'systemd-units', // blame Lennart > 'telepathy-logger', > 'upstart-sysvinit', Extra deps. > 'perl-threads', // WTH? Perl in our builds? > 'perl-threads-shared', > 'gnome-dvb-daemon', > We should sort this into noise -- stuff that changed between F13 and > F14, x86-specific packages, etc -- and worthy targets...

1 0

Re: [fedora-arm] PogoPlug device
by Scott Sullivan 13 Apr '11

13 Apr '11

Didn't send to the list as expected. Opps On 04/12/2011 01:27 PM, Scott Sullivan wrote: > On 04/12/2011 01:23 PM, Peter Robinson wrote: >> For those that might be interested the old PogoPlug is on sale at >> CompUSA at the moment for $44. >> >> http://www.compusa.com/applications/SearchTools/item-details.asp?EdpNo=5571… >> >> >> Its basically a SheevaPlug. I think this is the specs here >> https://wiki.xkyle.com/Pogoplug >> >> Peter >> _______________________________________________ >> arm mailing list >> arm(a)lists.fedoraproject.org >> https://admin.fedoraproject.org/mailman/listinfo/arm > > This is the most complete information I know for the Device: > http://www.plugapps.com/index.php5?title=Hardware:_Pogoplug_2 > > At the bottom of the Page there is even Photos of the Circuit board. > There is a serial header on the board, I have a link to the pin outs > somewhere... I tried connecting to it with a 3.3V TTL to USB chip, but > didn't have luck. Others have successes and I haven't re-visited it yet. > -- Scott Sullivan

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PogoPlug device
by Peter Robinson 13 Apr '11

13 Apr '11

For those that might be interested the old PogoPlug is on sale at CompUSA at the moment for $44. http://www.compusa.com/applications/SearchTools/item-details.asp?EdpNo=5571… Its basically a SheevaPlug. I think this is the specs here https://wiki.xkyle.com/Pogoplug Peter

1 0

Fedora 13 ARM Beta2
by Paul Whalen 08 Apr '11

08 Apr '11

Fedora 13 ARM users can now update to use a new repository composed on March 23rd. This new compose adds additional software and includes software groups. The Beta2 has been signed with a new key. If you are currently running the Beta1 you will need to install the new key which can be done by entering: rpm -Uvh http://arm.koji.fedoraproject.org/mash/beta/f13-arm-2011-03-23/f13-arm/arm/… And replace the fedora.repo file: mv /etc/yum.repos.d/fedora.repo.rpmnew /etc/yum.repos.d/fedora.repo The Fedora 13 ARM Beta2 compose can be found at : http://arm.koji.fedoraproject.org/mash/beta/f13-arm-2011-03-23/f13-arm/arm/… A new root filesystem is available here. The password for the root account remains “fedoraarm”. We are asking users of Fedora ARM for some feedback. Is there something missing? Is the software included so far working as expected? Any other suggestions? Please forward feedback to the mailing list

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arm April 2011