Group: Hardware/FSDG distributions/PureOS

From LibrePlanet
Jump to: navigation, search
(→‎PureOS on ARM SBCs: Add link to /dtb to handle kernel upgrades)
(Remove outdated infos.)
 
(One intermediate revision by the same user not shown)
Line 5: Line 5:
 
! Version
 
! Version
 
! Can be debootstrapped
 
! Can be debootstrapped
 +
! Based on<ref>Nowadays PureOS follows Debian closely. From #purism the 17 January 2022:<br/>
 +
20:23 < GNUtoo> Hi, is that documentation still up to date: https://tracker.pureos.net/w/development/pureos_archive_layout/ ?<br/>
 +
20:26 < GNUtoo> Or is it more like amber is based on Debian 9 (stretch) and byzantium is based on Debian 10 (Buster) ?<br/>
 +
20:28 <@greenfly> byzantium is based off of Debian 11 (Bullseye)<br/>
 +
20:29 < GNUtoo> ok thanks. And amber is based on stretch?<br/>
 +
20:30 < GNUtoo> And if I stay on a given version (like "amber") then it will stays based on the same Debian version in the future?<br/>
 +
20:30 <@greenfly> I can't recall at the moment whether amber was based on stretch or buster<br/>
 +
20:31 <@greenfly> but yes, it will behave like Debian in that regard<br/>
 +
20:31 < GNUtoo> ok, thanks, I'll try to identify the base version of amber<br/>
 +
20:31 <@greenfly> ie, byzantium will always point to bullseye, when we put out a new PureOS release, it will have a new name and will target a new upstream Debian release<br/>
 +
20:34 < GNUtoo> Thanks, I'll update the info on the Libreplanet wiki on that. Though I can't fix
 +
                https://tracker.pureos.net/w/development/pureos_archive_layout/ (I've no access to it)<br/>
 +
20:35 < GNUtoo> amber seems to be based on buster as the systemd package version is the same than buster and the stretch one is older<br/></ref>
 
! Kernel version
 
! Kernel version
 
! Comments
 
! Comments
Line 11: Line 24:
 
| Not anymore as October 2019:
 
| Not anymore as October 2019:
 
  E: Couldn't find these debs: ca-certificates pureos-minimal
 
  E: Couldn't find these debs: ca-certificates pureos-minimal
 +
| ?
 
| ?
 
| ?
 
|  
 
|  
Line 17: Line 31:
 
| Amber
 
| Amber
 
| {{Yes}}
 
| {{Yes}}
 +
| Debian 10 (buster)
 
| 4.19
 
| 4.19
 
|
 
|
 
* On the LiveUSB installer as October 2019
 
* On the LiveUSB installer as October 2019
−
* Based on Debian stable
+
* FSDG compliant
−
* Should be FSDG compliant
+
* In upstream debootstrap
 
|-  
 
|-  
 
| Byzantium
 
| Byzantium
 
| {{yes}}
 
| {{yes}}
 +
| Debian 11 (bullseye)
 
| 5.2
 
| 5.2
 
|  
 
|  
−
* "Development target"<ref>https://master.pureos.net/depcheck/</ref>
+
* FSDG compliant
−
* Based on Debian unstable
+
* In upstream debootstrap
−
* Not sure if it's FSDG compliant
 
 
|-
 
|-
 
| Landing
 
| Landing

Latest revision as of 14:44, 17 January 2023

PureOS versions

Version Can be debootstrapped Based on[1] Kernel version Comments
Green Not anymore as October 2019: 
E: Couldn't find these debs: ca-certificates pureos-minimal
? ?
  • Was on the live USB installer before but not anymore
Amber Yes Debian 10 (buster) 4.19
  • On the LiveUSB installer as October 2019
  • FSDG compliant
  • In upstream debootstrap
Byzantium Yes Debian 11 (bullseye) 5.2
  • FSDG compliant
  • In upstream debootstrap
Landing ? ?
  • Syncronized with Debian testing
  • Probably not fit for use but only as staging for development[2]

Installing

  • PureOS can be installed through the live USB installer
  • Parabola can debootstrap PureOS Amber for all the supported architectures

PureOS on ARM SBCs

u-boot

U-boot has a standard for booting distributions. The easiest way to configure your distribution to boot with u-boot is to create an extlinux.conf configuration file as explaned below. U-boot will then look for it in /boot/extlinux/extlinux.conf (and probably /extlinux/extlinux.conf too) on each partition that it can access.

How to install PureOS on an arm64 SBC 

# qemu-img create -f raw storage.img 2G
# fdisk storage.img # create 1 partition
# udisksctl loop-setup -f storage.img
# mkdir rootfs
# mkfs.ext4 -O ^metadata_csum -O ^64bit /dev/loop0p1
# mount /dev/loop0p1 rootfs
# mkdir -p rootfs/usr/bin
# debootstrap --foreign --arch arm64 amber rootfs https://repo.puri.sm/pureos 
# cp /usr/bin/qemu-aarch64-static rootfs/usr/bin
# LANG=C.UTF-8 chroot rootfs qemu-aarch64-static /bin/bash
# export TERM=xterm-color
# /debootstrap/debootstrap --second-stage

You then need to create the extlinux.conf file in /boot/extlinux/extlinux.conf with the following content: 

menu title Welcome to U-Boot with Extlinux support!

timeout 10

label PureOS GNU/Linux-libre, linux-libre kernel
        kernel /vmlinuz
        append loglevel=8 root=/dev/mmcblk0p1 rw
        fdtdir /dtb/
        initrd /initrd.img

You then need to write a script in /etc/kernel/postinst.d/zz-generate-dtb-link to generate a symlink from /usr/lib/linux-image-<your-kernel-version> to /dtb, so for instance from /usr/lib/linux-image-5.2.0-3-arm64/ to /dtb. I've an incomplete script here: 

#!/bin/sh
set -e

version="$1"

ln -sf /usr/lib/linux-image-${version} /dtb

The caveat of this script is that it has not been tested with multiple kernel versions installed, so during apt upgrade, it may or may not make the /dtb link point to the wrong kernel. So that needs to be tested.

With only one kernel installed it should not be a problem.

In addition to that you will also need to make the symlink yourself the first time, before booting the image, like that: 

ln -sf /usr/lib/linux-image-<your-kernel-version> /dtb

You will need to replace the <your-kenrel-version> with your kenrel version, for instance: 

ln -sf /usr/lib/linux-image-5.2.0-3-arm64/ /dtb.

TODO

  • Add a symlink for /usr/lib/linux-image-5.2.0-3-arm64/ to /ftddir or something like that in Debian and backport it to FSDG distributions that support architecture with devicetree like PureOS

References

  1. ↑ Nowadays PureOS follows Debian closely. From #purism the 17 January 2022:
    20:23 < GNUtoo> Hi, is that documentation still up to date: https://tracker.pureos.net/w/development/pureos_archive_layout/ ?
    20:26 < GNUtoo> Or is it more like amber is based on Debian 9 (stretch) and byzantium is based on Debian 10 (Buster) ?
    20:28 <@greenfly> byzantium is based off of Debian 11 (Bullseye)
    20:29 < GNUtoo> ok thanks. And amber is based on stretch?
    20:30 < GNUtoo> And if I stay on a given version (like "amber") then it will stays based on the same Debian version in the future?
    20:30 <@greenfly> I can't recall at the moment whether amber was based on stretch or buster
    20:31 <@greenfly> but yes, it will behave like Debian in that regard
    20:31 < GNUtoo> ok, thanks, I'll try to identify the base version of amber
    20:31 <@greenfly> ie, byzantium will always point to bullseye, when we put out a new PureOS release, it will have a new name and will target a new upstream Debian release
    20:34 < GNUtoo> Thanks, I'll update the info on the Libreplanet wiki on that. Though I can't fix https://tracker.pureos.net/w/development/pureos_archive_layout/ (I've no access to it)
    20:35 < GNUtoo> amber seems to be based on buster as the systemd package version is the same than buster and the stretch one is older
  2. ↑ https://tracker.pureos.net/w/development/pureos_archive_layout/
Retrieved from "https://libreplanet.org/wiki?title=Group:Hardware/FSDG_distributions/PureOS&oldid=67456"