Talk:Raspberry Pi/Quick Install Guide

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Changed downloadable tarball http address for Raspberry Pi B+

The right link is: http://gentoo.osuosl.org/releases/arm/autobuilds/current-stage3-armv6j_hardfp/stage3-armv6j-20160326.tar.bz2 --Best, Pál (talk) 18:48, 3 October 2016 (UTC)

Keeping ntp-client command in install guide

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The command "rc-update add ntp-client default" has been removed and replaced with a link to the relevant ntp config page, which is fair enough. However for the typical installed, especially a beginner, this command is pretty much essential. Otherwise you end up with the magical 1 January 1970. I know for 99% of the Gentoo RPi that I install will need this service. Any objections? Baldy (talk) 19:52, 10 February 2013 (UTC)

Moving "Cross building" to its own page

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We now have a very comprehensive section on distcc and cross building, I think it needs its own page.

  • People may already have gentoo running on there RPi and just looking to setup distcc
  • Not everyone will want to setup distcc, its not essential.

Of course we can leave a description of it and link to the page. Baldy (talk) 19:52, 10 February 2013 (UTC)

Root password reset

Just tried this howto, everything went fine except the root reset password by editing /etc/shadow, I fixed it by copying the shadow password for root from my laptop. mamac (talk) 23:23, 16 April 2013 (UTC +2)

naming of the network interface

Isn't eth0 still valid ?

Why not merge this page to Raspberry Pi

Both seem on the same topic, about the gentoo installation on raspberry pi. Why not merge them? AleiPhoenix (talk) 15:24, 5 September 2013 (UTC)

Installing gentoo headless

I installed gentoo on my raspberry pi without a display and input devices. I had to bring forward some steps before unmounting the SD:

  • Add net.eth0 to default runlevel
  • Add sshd to default runlevel
  • set root password

Should something like this be added? Should it be under notes or an extra point? jo77ah 14:40 13 July 2015 (UTC +2)

Raspberry Pi 2 B Changes

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With regard to Raspberry Pi 2 B there are some changes that should be put into the documentation, some of them related only to RPi2B and some also affect current installation:

  • it is Cortex-A7 which is arm7a arch
  • raspberrypi/firmware/boot now contains kernel.img and kernel7.img (idk if kernel7.img is picked up automatically or it must be specified in config.txt, i did not test that)
  • raspberrypi/modules now contains two directories, at this moment these are 4.1.15+ and 4.1.15-v7+
  • overclocking information is missing for armv7 (good information can be found for example in this article and the discussion below: http://haydenjames.io/raspberry-pi-2-overclock/)

New OpenSSH And Remote root Login Problem

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With new OpenSSH one of the default configuration parameters prevents being able to log in as root to the box: PermitRootLogin prohibit-password It should be changed to "yes" instead, at least for the first remote root login.

Using force_turbo=1 Might Void Warranty

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According to this article http://haydenjames.io/raspberry-pi-2-overclock/ using force_turbo=1 might void warranty. In the discussion there is written that it voids the warranty when combined with overclocking.

force_turbo=1 is the same as using the performance CPU governor. Its the overclocking/overvolting that sets the warranty bit. --NeddySeagoon (talk) 11:07, 8 March 2017 (UTC)

Splitting Memory

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It should mention that for graphical environments gpu_mem should be higher (on RPi2B 256+?) and on headless it can go down to 16.

This is not simple any more. The gpu_mem is only used by the original graphics driver. The open source vc4 driver uses the CMA provided by the kernel. Setting a high gpu_mem when the vc4 driver is in use reserves RAM for the GPU that it will never use.

--NeddySeagoon (talk) 11:07, 8 March 2017 (UTC)

Raspberry Pi's firmware: config file of the kernel?

So, one can get the precompiled kernel binaries from: git://github.com/raspberrypi/firmware/

and just copy it to /boot/ directory on microSD card.

But, what if one want to know what are the included options for this kernel? There is no config file at all, right? Where can one find this config file?

The config is included as a loadable module.

modprobe configs

Then /proc/config.gz appears

--NeddySeagoon (talk) 11:07, 8 March 2017 (UTC)

--Best, Pál (talk) 18:58, 9 May 2016 (UTC)

CPU Governor

Under install kernel and modules should the page describe how to change the CPU Governor. As distributed, it defaults to powersave. Thats not good for build performance. On the basis that this is a quick install guide. It could just be a note to users.

There are thermal implications of using ondemand or performance.

--NeddySeagoon (talk) 11:07, 8 March 2017 (UTC)