Arm-dev August 2018

arm-dev@lists.centos.org

17 participants
22 discussions

rng-tools missing and /dev/hwrng without driver
by SW＠EU 31 Oct '25

31 Oct '25

Hi, today I will report a problem that is released to ipa-server. This server contains a certificate authority and such service need many entropy. The default on CentOS 7 on a Banana PI is not enough, i.e. $(cat /proc/sys/kernel/random/entropy_avail) is less than 1000. I have solved this in meantime by installing and enabling of haveged from the EPEL repository. Normally it would be done by installing the rng-tools. But there are two problems: 1. The rng-tools was not in the repositories, so I have downloaded rng-tools-5-8.fc24.armv7hl.rpm because this are the same version which is included in CentOS 7.3 for x86_64. 2. This rng-tools are usable but the daemon starts and stops immediately with the following error message: # rngd -v /dev/hwrng: No such device /dev/tpm0: No such file or directory No entropy sources found, exiting This is not the problem of this binary it is a problem of the Kernel. /dev/hwrng exists and if I remove it then it reappears after reboot, but # ls -l /dev/hwrng crw-------. 1 root root 10, 183 1. Jan 1970 /dev/hwrng # udevadm info -a -n /dev/hwrng Udevadm info starts with the device specified by the devpath and then walks up the chain of parent devices. It prints for every device found, all possible attributes in the udev rules key format. A rule to match, can be composed by the attributes of the device and the attributes from one single parent device. looking at device '/devices/virtual/misc/hw_random': KERNEL=="hw_random" SUBSYSTEM=="misc" DRIVER=="" ATTR{rng_current}=="none" ATTR{rng_available}=="" there is no driver for this device. I have searched and found this link http://forum.lemaker.org/thread-23618-1-1.html which includes a link to the full story. If I read all right then on bananian /dev/hwrng appears only if the adapted or a more actual sun4i-ss.ko module is loaded (there is written: "module author has indicated this will be going into the mainline kernel shortly“). This module is also loaded on a Banana PI with current CentOS 7. So does the kernel of CentOS 7.3 for ARM32 include this patch and if yes why it does not work or otherwise why this device appears but has no driver? TIA, Silvio Sent with [ProtonMail](https://protonmail.com) Secure Email.

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EPEL repo not available?
by Boyd Ako 31 Oct '25

31 Oct '25

Can anybody verify that the EPEL repo for ARMHFP isn’t available? I keep getting an error saying the REPOMD file isn’t there when running yum. It works if I use —disablerepo=epel\* when using yum. But, there might be some stuff in the EPEL that I’m looking for. Running it on a Raspberry Pi 3 and trying to get Nagios installed for home use. Domo, Boyd H. Ako boyd.hanalei.ako(a)gmail.com (424) 244-9653 https://www.boydhanaleiako.me “Coming together is a beginning. Keeping together is progress. Working together is success.” -Henry Ford PGP/GPG Public Key: https://sks-keyservers.net/pks/lookup?op=get&search=0xC58073B21618F134

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Gigabyte MP30-AR0
by Gordan Bobic 31 Oct '25

31 Oct '25

Hi, I am toying with the idea of getting a Gigabyte MP30-AR0 board (despite the insanely exorbitant price tag). Has anyone got the aarch64 CentOS working on one of those? Any special instructions? Also, if I get the ISO, is it bootable on aarch64? Does the installer work? Or does the image have to be used like on 32-bit ARM? Thanks. Gordan

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Re: [Arm-dev] Add Marvell Armada7k8k NIC (mvpp2) support patches
by Marcin Wojtas 26 May '20

26 May '20

Hi Jim, It's been a while, since I sent the patch. Any objections about merging? Is v4.11 kernel still a valid baseline or for the next releases or we should use v4.14? When is that transition and next release supposed to happen? Best regards, Marcinsob., 23 cze 2018 o 08:18 Marcin Wojtas <mw(a)semihalf.com> napisał(a): > > Hi, > > I'm sending a patch that is applicable on top of the kernel > sig-altarch7-aarch64 branch. It enables ACPI support for the Marvell > Armada7k8k NIC - this required backporting very big amount of patches > (all merged upstream), hence I decided to attach the single commit, > instead of issueing 'git send-email' of it. > > Despite many attempts I wasn't able to build entire rpm package with > the mock build utility, however I managed to test the clean kernel > v4.11 with applied all patches and built with updated .config. Please > let know if this patch is sufficient and can be merged. > > Thanks, > Marcin

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Attempt to install Xfce by hand
by Robert Moskowitz 23 Oct '18

23 Oct '18

You may have seen my posts around on my challenges to build a couple groups to do a group install. That got me to realize, that I probably know which rpms to install and I could 'do it by hand' for now. So first step was: yum install glx-utils initial-setup-gui mesa-dri-drivers plymouth-system-theme spice-vdagent xorg-x11-drivers xorg-x11-server-Xorg xorg-x11-utils xorg-x11-xauth xorg-x11-xinit xvattr tigervnc-server wayland-protocols-devel xorg-x11-drv-keyboard xorg-x11-drv-libinput xorg-x11-drv-mouse xorg-x11-drv-openchrome Where xorg-x11-drv-openchrome was not available, but is flagged optional in the group. This installed 16 packages and 263 dependents. Next the actual Xfce: yum install Thunar xfce-utils xfce4-panel xfce4-session xfce4-settings xfconf xfdesktop xfwm4 gdm leafpad openssh-askpass orage polkit-gnome thunar-archive-plugin thunar-volman tumbler xfce4-appfinder xfce4-icon-theme xfce4-power-manager xfce4-session-engines xfce4-terminal xfwm4-theme-nodoka xfwm4-themes pinentry First this showed: No package xfce-utils available. No package leafpad available. No package thunar-archive-plugin available. No package xfce4-icon-theme available. No package xfwm4-theme-nodoka available. No leafpad is OK, as a check shows that mousepad is available and this is what is in Fedora28. No xfce-utils is not good. It got worst with critical missing dependencies that need to be fixed before I could get this to work: Error: Package: xfce4-power-manager-1.4.1-4.el7.armv7hl (epel) Requires: libxfce4util.so.6 Available: libxfce4util-4.10.1-2.el7.armv7hl (epel) libxfce4util.so.6 Installing: libxfce4util-4.12.1-2.el7.armv7hl (epel) ~libxfce4util.so.7 Error: Package: xfdesktop-4.10.3-1.el7.armv7hl (epel) Requires: libxfce4util.so.6 Available: libxfce4util-4.10.1-2.el7.armv7hl (epel) libxfce4util.so.6 Installing: libxfce4util-4.12.1-2.el7.armv7hl (epel) ~libxfce4util.so.7 Error: Package: xfce4-session-4.10.1-8.el7.armv7hl (epel) Requires: libxfce4util.so.6 Available: libxfce4util-4.10.1-2.el7.armv7hl (epel) libxfce4util.so.6 Installing: libxfce4util-4.12.1-2.el7.armv7hl (epel) ~libxfce4util.so.7 Error: Package: orage-4.10.0-5.el7.armv7hl (epel) Requires: libxfce4util.so.6 Available: libxfce4util-4.10.1-2.el7.armv7hl (epel) libxfce4util.so.6 Installing: libxfce4util-4.12.1-2.el7.armv7hl (epel) ~libxfce4util.so.7 Error: Package: Thunar-1.6.3-2.el7.armv7hl (epel) Requires: libxfce4util.so.6 Available: libxfce4util-4.10.1-2.el7.armv7hl (epel) libxfce4util.so.6 Installing: libxfce4util-4.12.1-2.el7.armv7hl (epel) ~libxfce4util.so.7 Error: Package: xfce4-appfinder-4.10.1-2.el7.armv7hl (epel) Requires: libxfce4util.so.6 Available: libxfce4util-4.10.1-2.el7.armv7hl (epel) libxfce4util.so.6 Installing: libxfce4util-4.12.1-2.el7.armv7hl (epel) ~libxfce4util.so.7 Error: Package: xfce4-session-engines-4.10.1-8.el7.armv7hl (epel) Requires: libxfce4util.so.6 Available: libxfce4util-4.10.1-2.el7.armv7hl (epel) libxfce4util.so.6 Installing: libxfce4util-4.12.1-2.el7.armv7hl (epel) ~libxfce4util.so.7 Error: Package: thunar-volman-0.8.0-6.el7.armv7hl (epel) Requires: libxfce4util.so.6 Available: libxfce4util-4.10.1-2.el7.armv7hl (epel) libxfce4util.so.6 Installing: libxfce4util-4.12.1-2.el7.armv7hl (epel) ~libxfce4util.so.7 You could try using --skip-broken to work around the problem You could try running: rpm -Va --nofiles --nodigest I am going to have to put this on the back burner until someone can fix these. I do not have the skill sets to do it. But having Xcfe would be great for an armv7 SOC over Gnome!

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Generic armhfp / aarch64 root filesystem for CentOS 7.5.1804
by Uli Middelberg 17 Sep '18

17 Sep '18

Hi Fabian, hi Jim, the CentOS 7.5.1804 iso images have been released for a while now and I'm wondering if you have plans to provide a generic armhfp / aarch64 root filesystem [1],[2] as well? Cheers Uli [1] https://armv7.dev.centos.org/repodir/images-testing/CentOS-Userland-7-armv7… [2] http://mirror.centos.org/altarch/7.4.1708/isos/aarch64/CentOS-7-aarch64-roo…

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Cubieboard5 performance
by Robert Moskowitz 26 Aug '18

26 Aug '18

has anyone here tried out the octa-core Cubieboard5? Does Centos work with all those cores for better multitasking than the duo-core A20 boards? One of my Cubieboard2 is dying and I CAN replace it with one of my test boards. But my mail server does struggle with only 2 cores for all the virus scanning. If I had more cores, I could lift the attachment limit, perhaps. I just saw a deal on the Cubieboard5, cheaper than the Cubietruck. Or info on any other quad board. thanks

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Fwd: New kernel takes ~130MB!
by Gordan Bobic 26 Aug '18

26 Aug '18

On Sun, Aug 26, 2018 at 11:23 AM, Johnny Hughes <johnny(a)centos.org> wrote: > On 08/18/2018 05:05 AM, Gordan Bobic wrote: > > I have to ask - what is the purpose of separating kernel, kernel-core > > and kernel-modules into separate packages? > > Ask Fedora .. we just build what Fedora / RHEL puts out wrt to CentOS > and kernel SPECS. > /me despairs a little more and moves another inch closer to switching to Devuan... Or FreeBSD... > > That is how the new Fedora Kernels are released. > > Those devs are really smart, so I'm sure they have a good reason :) > I think we'll have to remain in disagreement on that part. Gordan

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New kernel takes ~130MB!
by Robert Moskowitz 26 Aug '18

26 Aug '18

I just installed the new kernel on one of my Cubieboard2s. /boot used grew ~130MB. Challenge is that my next board to update only has 43MB free. It currently has 3 kernels on it. Is there a way to cleanly delete old kernel files prior to the update? In this case 4.9.30-203? thanks

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Updated Centos7-armv7 install howto
by Robert Moskowitz 26 Aug '18

26 Aug '18

I have finally updated my howto at: http://www.htt-consult.com/Centos7-armv7.html Thanks to the excellent Centos armhfp site, I was able to pull out a lot of the basic setup instructions. Thanks for your work putting that site up. Please go over and take a look; all comments will be welcomed (but not necessarily acted on! :) ). Thank you for providing the code that makes running Centos7 on armv7 boards possible. It would be nice if EPEL could move along. Perhaps when I retire (in a year or 2), I will take on learning how to help there. I have one other project to tackle before I can restart my mailserver effort.

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Arm-dev August 2018