2020–09–05: PinePhone multi-boot image

I made a further progress on the multi-boot image:

I extracted all prepared rootfs tarballs to partitions,
configured p-boot to load kernels provided by each distribution and pass proper bootargs to them,
and created p-boot splashscreens for all distros.

The result is:

I have yet to boot test all the distributions. Prior to that, I have to check whether the distros are not doing something destructive on boot, like resizing or deleting partitions, etc.

So far my boot.conf for p-boot looks like this:

#!/bin/sh

#serial="console=ttyS0,115200 earlycon=ns16550a,mmio32,0x01c28000 loglevel=15"
bootargs="cma=256M console=tty1 consoleblank=0 quiet loglevel=1 panic=3 rw rootwait root=PARTUUID=12345678"

dists=/mnt/dists

#/dev/mmcblk0p2: PARTUUID="12345678-02"  mobian (f2fs, 5.7 kernel, PP 1.0-1.2)
#/dev/mmcblk0p3: PARTUUID="12345678-03"  KDE neon (ext4 only, 5.7 kernel, PP 1.1 only)
#/dev/mmcblk0p5: PARTUUID="12345678-05"  arch (f2fs, my 5.9 kernel, , PP 1.0-1.2)
#/dev/mmcblk0p6: PARTUUID="12345678-06"  sxmo (ext4 only, 5.7 kernel, PP 1.1, 1.2)
#/dev/mmcblk0p7: PARTUUID="12345678-07"  lune (ext4 only, 5.5 kernel, PP 1.1 only)
#/dev/mmcblk0p8: PARTUUID="12345678-08"  maemo (ext4 only, 5.6 kernel, PP 1.1 only)
#/dev/mmcblk0p9: PARTUUID="12345678-09"  ut  (ext4 only, 5.6 kernel, PP 1.1 only)
#/dev/mmcblk0p10: PARTUUID="12345678-0a" sailfish (ext4 only, 5.6 kernel, some custom DTB with partial support for up to PP 1.2)
#/dev/mmcblk0p11: PARTUUID="12345678-0b" pureos (f2fs, 5.8 kernel, PP 1.0-1.2)

zcat $dists/part2/boot/Image.gz > $dists/part2/boot/Image
#zcat $dists/part3/boot/vmlinuz-5.7.0-pine64-g3823929aa > $dists/part3/boot/Image
#zcat $dists/part8/boot/Image.gz > $dists/part8/boot/Image
#zcat $dists/part9/boot/vmlinuz > $dists/part9/boot/Image

cat << EOF
device_id = Multi-Distro Demo Image

no          = 0
  name      = Mobian
  atf       = fw.bin
  dtb       = $dists/part2/boot/dtb/allwinner/sun50i-a64-pinephone-1.1.dtb
  linux     = $dists/part2/boot/Image
  initramfs = $dists/part2/boot/initrd.img
  bootargs  = $bootargs-02 splash plymouth.ignore-serial-consoles vt.global_cursor_default=0
  splash    = files/mobian.argb

no          = 1
  name      = KDE Neon
  atf       = fw.bin
  dtb       = $dists/part3/boot/dtb
  linux     = $dists/part3/boot/Image
  initramfs = $dists/part3/boot/initrd.img-5.7.0-pine64-g3823929aa
  bootargs  = $bootargs-03 splash
  splash    = files/neon.argb

no          = 2
  name      = Arch Linux ARM
  atf       = fw.bin
  dtb       = $dists/part5/boot/dtbs/allwinner/sun50i-a64-pinephone-1.1.dtb
  linux     = $dists/part5/boot/Image
  initramfs = $dists/part5/boot/initramfs-linux.img
  bootargs  = $bootargs-05
  splash    = files/arch.argb

no          = 3
  name      = Sxmo
  atf       = fw.bin
  dtb       = $dists/part6/boot/sun50i-a64-pinephone-1.1.dtb
  linux     = $dists/part6/boot/vmlinuz-postmarketos-allwinner
  initramfs = $dists/part6/boot/initramfs-postmarketos-allwinner
  bootargs  = $bootargs-06 init=/init.sh PMOS_NO_OUTPUT_REDIRECT PMOS_FORCE_PARTITION_RESIZE pmos_root=/dev/mmcblk0p6
  splash    = files/sxmo.argb

no          = 4
  name      = Lune OS
  atf       = fw.bin
  dtb       = $dists/part7/boot/sun50i-a64-pinephone.dtb
  linux     = $dists/part7/boot/Image
  initramfs = $dists/part7/boot/initramfs-uboot-image-pinephone.uboot
  bootargs  = $bootargs-07 bootmode=normal LUNEOS_NO_OUTPUT_REDIRECT
  splash    = files/lune.argb

no          = 5
  name      = Maemo Leste
  atf       = fw.bin
  dtb       = $dists/part8/boot/allwinner/sun50i-a64-pinephone-1.1.dtb
  linux     = $dists/part8/boot/Image
  bootargs  = $bootargs-08 fbcon=rotate:1
  splash    = files/maemo.argb

no          = 6
  name      = Ubuntu Touch
  atf       = fw.bin
  dtb       = $dists/part9/boot/dtb
  linux     = $dists/part9/boot/Image
  initramfs = $dists/part9/boot/initrd.img
  bootargs  = $bootargs-09 systempart=/dev/mmcblk0p9 devnum=0 logo.nologo vt.global_cursor_default=0
  splash    = files/ut.argb

no          = 7
  name      = Sailfish
  atf       = fw.bin
  dtb       = $dists/part10/boot/sun50i-a64-pinephone-1.1.dtb
  linux     = $dists/part10/boot/Image
  bootargs  = $bootargs-0a
  splash    = files/sailfish.argb

no          = 8
  name      = Pure OS
  atf       = fw.bin
  dtb       = $dists/part11/boot/dtb/allwinner/sun50i-a64-pinephone-1.1.dtb
  linux     = $dists/part11/boot/Image
  initramfs = $dists/part11/boot/initrd.img
  bootargs  = $bootargs-0b init=/sbin/init splash plymouth.ignore-serial-consoles
  splash    = files/pureos.argb


EOF