arm March 2011

arm@lists.fedoraproject.org

29 participants
23 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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Fedora 13 ARM Beta2
by Paul Whalen 07 Apr '11

07 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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Hardware page [was: Re: Fedora 13 ARM Beta2]
by Matthew Wilson 29 Mar '11

29 Mar '11

On 29 March 2011 07:15, Jon Masters <jcm(a)redhat.com> wrote: > On Sat, 2011-03-26 at 21:10 +0000, Matthew Wilson wrote: >> It's probably worth gathering some data on h/w and experiences as the >> beta progresses. Any objections to my creating a wiki page to track >> and summarise this? > > That sounds like a great idea! I'm running Fedora ARM on a bunch of > BeagleBoards, and some PandaBoards at the moment. I have a DreamPlug on > the way, and a SheevaPlug that may get re-used, but hopefully not before > I've convinced myself that ARMv7 is a good base ;) > > My most fun bit of ARM hardware right now is (still) by collection of > empeg car stereos, which alas won't likely run Fedora any time soon, but > provide hours of entertainment nonetheless. I've created a page on the wiki: http://fedoraproject.org/wiki/Architectures/ARM/User_Hardware It's rather bare now -- please feel free to add some brief details of the ARM device(s) you use. Thanks, Matthew

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Building from git-URL is broken on cdot-panda-7-2 (and possibly others)
by Niels de Vos 27 Mar '11

27 Mar '11

Hi there! I'm looking into building the java stack for ARM. Unfortunately something is broken when building from SCM. A command like this seems to start building: $ arm-koji build --scratch dist-f13 'git://pkgs.fedoraproject.org/java-1.6.0-openjdk?#81fa2ec4f45ebc5f0f81475a77…' Unfortunately the src.rpm can not be created :-( It bails out with something like this: DEBUG util.py:280: Executing command: ['fedpkg', 'sources'] DEBUG util.py:256: % Total % Received % Xferd Average Speed Time Time Time Current DEBUG util.py:256: Dload Upload Total Spent Left Speed DEBUG util.py:256: 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0 DEBUG util.py:256: curl: (22) The requested URL returned error: 404 DEBUG util.py:256: Could not download sources: Could not download http://cvs.fedoraproject.org/repo/pkgs/java-1.6.0-openjdk/mauve_tests/7a0c1…: Command '['curl', '-H', 'Pragma:', '-O', '-R', '-S', '--fail', '--show-error', 'http://cvs.fedoraproject.org/repo/pkgs/java-1.6.0-openjdk/mauve_tests/7a0c1…']' returned non-zero exit status 22 DEBUG util.py:319: Child returncode was: 1 (that comes from the root.log at https://arm.koji.fedoraproject.org/koji/taskinfo?taskID=92560 which ran on cdot-panda-7-2) It seems that 'fedpkg sources' does not pull the sources from the right URL (http://cvs.fedoraproject.org/repo/ and further does not exist anymore). When I execute 'fedpkg sources' on my local f14.x84_64, everything works fine and I can upload the srpm for a scratch-build. I guess fedpkg needs an update, either in the mock repository, or on some builders, or .... Thanks, Niels

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Re: [fedora-arm] I have some problem to install Fedora 12 ARM on Beagleboard xM
by Rich Mattes 26 Mar '11

26 Mar '11

On Tue, Mar 22, 2011 at 9:59 AM, haberldx002 <haberldx002(a)gmail.com> wrote: > Hi, > > Today I try to install Fedora 12 ARM on my Beagleboard xM, I follow the > guide in > https://fedoraproject.org/wiki/Architectures/ARM/BeagleBoardxMSDCard step > by step. Everythings looks OK. > > But when I boot the board, it still boot into the orginal angstrom, the > boot.scr likes not working. Could you please help me to let it work? Thanks. > > > Best Regards, > David > > 2011-03-22 > ------------------------------ > haberldx002 > Hi, I'm forwarding this message to the fedora ARM mailing list, as it's better to ask there than to contact me directly. Are you using a recent version of u-boot.bin? Have you manually changed any of the u-boot environment variables at any point? I didn't write the section of the tutorial concerning the boot.scr file. I'm not too familiar with how u-boot works, but I can say that the process worked for me on the two fresh out-of-the-box beagleboard xms i've tried it on. Rich

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Are there interested parties for a xorg-x11-drv-omapfb package?
by Niels de Vos 26 Mar '11

26 Mar '11

Hi there! I came across an X.org driver for OMAP [0] and as packaged [1] this driver to prepare for my own testing. Building works fine, but I have no possibility to test this driver at the moment as I do not have a monitor to connect to my BeagleBoard. If there is interest from others, I'll put this package up for review and inclusion in a future release. Any feedback or test-results much appreciated! Thanks, Niels [0] http://cgit.pingu.fi/xf86-video-omapfb/ [1] http://arm.koji.fedoraproject.org/koji/taskinfo?taskID=92557

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Bug process for arch-specific bugs
by Matthew Wilson 26 Mar '11

26 Mar '11

Hi all, Please could someone point me to / summarise the process for secondary arch-specific bugs? I'll raise issues on bugzilla if appropriate, but I wanted to check if there's something specific for Fedora ARM when the issue doesn't occur on i386 / x86_64. (The specific issue is with Firefox: Ubuntu have seen this one too [1], but the fix of playing with -O2 / -O doesn't have any effect on F13 -- unsurprisingly.) Thanks, Matthew [1] https://bugs.launchpad.net/ubuntu/+source/firefox-3.5/+bug/443147

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Missing fake-kernel-provides package
by Dmitry N. Mikushin 26 Mar '11

26 Mar '11

Hi, Thanks for you great work, Fedora arm rootfs alpha worked well on toshiba ac100, then I was able to change repo and receive updates from latest beta 2. One issue I've seen is the following: http://hongkong/yum/base/12/arm/fake-kernel-provides-1.0.0-0.fc12.armv5tel.…: [Errno 14] PYCURL ERROR 6 - "" Trying other mirror. Error Downloading Packages: fake-kernel-provides-1.0.0-0.fc12.armv5tel: failed to retrieve fake-kernel-provides-1.0.0-0.fc12.armv5tel.rpm from fedora-arm-koji error was [Errno 14] PYCURL ERROR 6 - "" URL is indeed quite strange... What's the problem with it? - D.

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dietlibc
by Gordan Bobic 24 Mar '11

24 Mar '11

In case this is relevant to anyone - dietlibc versions prior to dietlibc-0.33-0.1600.20110311.fc16 are broken on ARM. dietlibc-0.33-0.1600.20110311.fc16 is the first version that builds cleanly and works in my use-case (util-vserver). What is the procedure for getting this into the F13 ARM yum repository (since the F13 version won't work)? Is there a procedure by which rawhide packages get backported to older Fedora versions in cases like this? Gordan

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New Status Page Mockup
by Houssam Haidar 24 Mar '11

24 Mar '11

Hello, I'm currently working on the new status page for the Fedora ARM project. Here's what I have so far: http://matrix.senecac.on.ca/~hhaidar/arm-comm/ <http://matrix.senecac.on.ca/%7Ehhaidar/arm-comm/> and here's a download link: http://matrix.senecac.on.ca/~hhaidar/arm-status-0.1.zip <http://matrix.senecac.on.ca/%7Ehhaidar/arm-status-0.1.zip> I think I have most of the elements from the current status page in place (see http://arm.koji.fedoraproject.org/status/) However, Chris mentioned that he also wants to see various types of graphs, so there's still a bit more to work out. I've love to get some feedback on this, especially if I'm missing anything. Thanks!

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arm March 2011