Arm-dev

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685 discussions

raspi 3b+ kernel module
by Skorpeo Skorpeo 19 Feb '19

19 Feb '19

Hi, I'm trying to use wireguard on a raspi 3b+ by compiling it. The raspi command output for uname -r shows 4.14.79-v7+, the extra "+" at the end is what I think is causing some troubles in getting it to work. It seems my best bet is to recompile the kernel so I wasn't sure where to find the right sources as it seems there's specific sources for the raspi? Any pointers appreciated!

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efi for raspi 3
by Skorpeo Skorpeo 19 Feb '19

19 Feb '19

Looks like efi for raspi3 is upstream now: https://github.com/tianocore/edk2-platforms/tree/master/Platform/RaspberryP…

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clock throttling
by Kristján Valur Jónsson 15 Feb '19

15 Feb '19

Hi there. Im running Centos on a RPi3. I came across a post about how the vidc throttles arm cpu speed to manage voltage drop and heat. So I ran the attached script. I have an official power supply, but still I'm getting the following output: 44.5'C 600/ 600 MHz 0000000000000000000 1.2V 600/ 600/1185 MHz 45.1'C 600/ 600 MHz 0000000000000000000 1.2V 600/ 600/1185 MHz Indicating a measured 1.2v input and 600MHz. What is curious is that none of the flag bits are set. my boot/config.txt contains no clockspeed options. does the CentOS distro come with its own GPU code? The ouptut does not match what I would expect. (I've tried replacing the PSU, with no effect) -- Kv, Kristján Valur Jónsson, RVX

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Re: [Arm-dev] whatprovides sepol-ifgen?
by Patrick Laimbock 05 Feb '19

05 Feb '19

-----Original message----- > From:Robert Moskowitz <rgm(a)htt-consult.com> > Sent: Tuesday 5th February 2019 16:21 > To: Conversations around CentOS on ARM hardware <arm-dev(a)centos.org> > Subject: [Arm-dev] whatprovides sepol-ifgen? > > I am fighting to get dovecot working with mysql.sock with SELinux > enforced. And I am trying to do this 'better' than what I found 2 years > ago. On the SELiunx list I was told to run: > > ausearch -m AVC --context dovecot_t | audit2allow --reference -m > dovecot_mysql_custom > > But this generates the error > > could not open interface info [/var/lib/sepolgen/interface_info > > To fix this I was told to run > > sepol-ifgen Try sepolgen-ifgen. IIRC it lives in the policycoreutils-devel package. Patrick

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whatprovides sepol-ifgen?
by Robert Moskowitz 05 Feb '19

05 Feb '19

I am fighting to get dovecot working with mysql.sock with SELinux enforced. And I am trying to do this 'better' than what I found 2 years ago. On the SELiunx list I was told to run: ausearch -m AVC --context dovecot_t | audit2allow --reference -m dovecot_mysql_custom But this generates the error could not open interface info [/var/lib/sepolgen/interface_info To fix this I was told to run sepol-ifgen But command not found. whatprovides comes up empty. Googling says it should be in policycoreutils which is already installed. Can anyone help me with sepol-ifgen, or the above command, or getting a SELinux policy that allows dovecot to connect to mysql.sock? thanks

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kernel tools on CentOS-Userland-7-armv7hl-generic-Minimal-419-v26-1810-sda
by Robert Moskowitz 01 Feb '19

01 Feb '19

I just did a build of a new drive for my Odroid HC1. This includes doing a yum update. I see: kernel-tools armv7hl 4.14.91-201.el7 centos-kernel 149 k kernel-tools-libs armv7hl 4.14.91-201.el7 centos-kernel 74 k as part of the update. Is it a problem for kernel tools to be at 4.14 when the kernel is a 4.19?

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Chrooting/Docker to armv7hl and armv5tel on aarch64
by Gordan Bobic 28 Jan '19

28 Jan '19

It's been so long since I last had to do this, that it looks like a kernel update somewhere along the way broke this for me. :-( What happens now: # chroot rs7 chroot: failed to run command ‘/bin/bash’: Exec format error I could have sworn that this was all I needed to make this work last time: # grep 4K_PAGES config-4.9.153-1.el7.centos.aarch64 CONFIG_ARM64_4K_PAGES=y # CONFIG_ARM64_64K_PAGES is not set Unfortunately, now trying to chroot into either hard-float or soft-float chroot results in the exec format error. Looking at time stamps of various things, I had this working with 4.4.70, but have since switched to 4.9.x kernels. Any thoughts on what changed between 4.4 and 4.9 would be most appreciated. What am I missing?

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How to get uboot information
by Robert Moskowitz 11 Jan '19

11 Jan '19

Is there a command that gets me the uboot information I see displayed on the serial console at boot time. For example: U-Boot SPL 2016.09.01 (Oct 19 2016 - 13:46:44) and U-Boot 2016.09.01 (Oct 19 2016 - 13:46:44 +0000) Allwinner Technology thanks

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Problems installing yum-utils on one system
by Robert Moskowitz 09 Jan '19

09 Jan '19

I have yum-utils on two systems, but for some reason, it has dependency issues on another. [root@onlo rgm]# yum install yum-utils Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile Resolving Dependencies --> Running transaction check ---> Package yum-utils.noarch 0:1.1.31-50.el7 will be installed --> Processing Dependency: python-kitchen for package: yum-utils-1.1.31-50.el7.noarch --> Processing Dependency: libxml2-python for package: yum-utils-1.1.31-50.el7.noarch --> Running transaction check ---> Package libxml2-python.armv7hl 0:2.9.1-6.el7_2.3 will be installed --> Processing Dependency: libxml2 = 2.9.1-6.el7_2.3 for package: libxml2-python-2.9.1-6.el7_2.3.armv7hl ---> Package python-kitchen.noarch 0:1.1.1-5.el7 will be installed --> Processing Dependency: python-chardet for package: python-kitchen-1.1.1-5.el7.noarch --> Running transaction check ---> Package libxml2-python.armv7hl 0:2.9.1-6.el7_2.3 will be installed --> Processing Dependency: libxml2 = 2.9.1-6.el7_2.3 for package: libxml2-python-2.9.1-6.el7_2.3.armv7hl ---> Package python-chardet.noarch 0:2.2.1-1.el7_1 will be installed --> Finished Dependency Resolution Error: Package: libxml2-python-2.9.1-6.el7_2.3.armv7hl (base) Requires: libxml2 = 2.9.1-6.el7_2.3 Installed: libxml2-2.9.1-6.el7.3.armv7hl (@centos-base_rbf) libxml2 = 2.9.1-6.el7.3 Available: libxml2-2.9.1-6.el7_2.3.armv7hl (base) libxml2 = 2.9.1-6.el7_2.3 You could try using --skip-broken to work around the problem You could try running: rpm -Va --nofiles --nodigest What do I need to do to get it installed? thanks

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How to enable i2c
by Philip Manuel 06 Jan '19

06 Jan '19

Hi, I've added the following parameters to /boot/cmdline.txt i2c_arm=on i2c1=on i2c0=on but I get no /dev/i2c* entries, but dmesg shows i2c /dev entries driver What am I missing ? Thanks Phil

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