User:Oogwaymaki
Summary:
After following these steps:
- You'll have a Custom UBOOT (Crust ENABLED) that allows MultiBOOT Using 3 different OS's depending on key combo of volume up / volume down or none pressing on boot - You'll be able to experiment on SD Card without Touching your EMMC - You'll learn how to take a part a PINE PHONE IMAGE (most, and put each OS On one partition
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All the information here, has been discussed in the open source community on web sites. I have simply developed a process on how to do this on the pine phone.
We use utilities such as Cross Compilation, Uboot, Patches, which will be credited.
First step, make sure you have a cross compiler for your Computer, for particularly the arm device, you will need to download a few packages, I assume we're using Debian Linux (if your using another OS you can find similar commands by searching on the web or to make it simpler download a docker Debian image, and install the pre-requisites which I will list here for Debian)
You an also use vagrant/virtual box VMware or other virtualization platforms.
First please install these Dependencies:
apt-get install gcc-aarch64-linux-gnu g++-aarch64-linux-gnu build-essential autoconf libtool cmake pkg-config git python-dev swig3.0 libpcre3-dev nodejs-dev crossbuild-essential-arm64 git losetup
The following main sources are needed:
This will download quite a few sources needed for Uboot and existing OS's available to PinePhone
https://github.com/crust-firmware/meta.git
We will also apply this patch:
https://megous.com/git/u-boot/patch/?id=0ab6225154c3d8b74f06fb3b181b52a9a64b4602
(I will attach the one I used I had to modify the above patch to work with the code.)
The crust-firmware also says you need to download the or1k compiler:
https://musl.cc/or1k-linux-musl-cross.tgz
I suggest untarring this in the /opt folder.
1. Once you have these dependency:
- cd /usr/src
- git clone https://github.com/crust-firmware/meta.git
- cd /usr/src/meta
Edit the following file Make file
- Cross compiler
CROSS_aarch64 = aarch64-linux-musl- CROSS_or1k = or1k-linux-musl-
- General options
DEBUG ?= 0 REPRODUCIBLE ?= 0
- Board selection
BOARD ?= pinebook
Example:
- Cross compiler
CROSS_aarch64 = /usr/bin/aarch64-linux-gnu- CROSS_or1k = /opt/or1k-linux-musl-cross/bin/or1k-linux-musl-
- General options
DEBUG ?= 0 REPRODUCIBLE ?= 0
- Board selection
BOARD ?= pinephone
- make
(this should take a 10-30 mins depending on speed..I hope less than 30 mins!!)
After making apply the patch..
- make again
now, go to your sdcard (use a CLEAN scard NO Partitions)
fdisk /dev/sd# create 4 primary partitions, the 1rst one should be the "boot" partition containing Uboot stuff, I'd suggest a gigabyte the other 3 could be your choice
Lets start with the first OS were going to use:
JUMPDRIVE (allows booting the EMMC and fixing it if we break it!!!)
Download it here:
https://github.com/dreemurrs-embedded/Jumpdrive/releases/download/0.4/pine64-pinephone.img.xz
then use losetup to mount the image to copy the files needed
root@wifirouter:/home/dave# losetup -P -f pine64-pinephone.img
it'll mount a loop back
root@wifirouter:/home/dave# ls /dev/loop0* /dev/loop0 /dev/loop0p1
Mount there first image:
root@wifirouter:/home/dave# mkdir /media/jumpdrive root@wifirouter:/home/dave# mount /dev/loop0p1 /media/jumpdrive/
mount the sd card:
root@wifirouter:/media# mkdir /media/boot root@wifirouter:/media# fdisk -l
Your pine phone looks like this DO NOT TOUCH EMMC You don't need to
Disk model: e eMMC Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: gpt Disk identifier: 4932F07F-4DC2-4A88-BEA9-6E165C4A5136
Device Start End Sectors Size Type /dev/sda1 256 4095 3840 1.9M Linux filesystem /dev/sda2 4097 6144 2048 1M Linux filesystem /dev/sda3 6146 22460 16315 8M Linux filesystem /dev/sda4 22461 153515 131055 64M Linux filesystem /dev/sda5 153516 285156 131641 64.3M Linux filesystem /dev/sda6 285157 416015 130859 63.9M Linux filesystem /dev/sda7 416016 546875 130860 63.9M Linux filesystem /dev/sda8 546876 5546875 5000000 2.4G Linux filesystem /dev/sda9 5546876 10546875 5000000 2.4G Linux filesystem /dev/sda10 10546876 28515591 17968716 8.6G Linux filesystem
Disk /dev/sdb: 119.8 GiB, 128579534848 bytes, 251131904 sectors
Disk model: e microSD
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x50fdd1d4
Device Boot Start End Sectors Size Id Type /dev/sdb1 2048 2099199 2097152 1G 83 Linux /dev/sdb2 2099200 65013759 62914560 30G 83 Linux /dev/sdb3 65013760 127928319 62914560 30G 83 Linux /dev/sdb4 127928320 251131903 123203584 58.8G 83 Linux root@wifirouter:/media# mount /dev/sdb1 /media/boot/ root@wifirouter:/media# cd /media/boot root@wifirouter:/media/boot# mkdir boot
root@wifirouter:/media/boot# mkdir -p multiboot/jumpdrive root@wifirouter:/media/boot# cp * multiboot/jumpdrive
End result should be like this:
root@wifirouter:/media/boot/multiboot/jumpdrive# ls -la total 4988 drwxr-xr-x 2 root root 4096 Jun 25 05:51 . drwxr-xr-x 3 root root 4096 Jun 25 05:46 .. -rwxr-xr-x 1 32011 32011 3991895 Jun 25 05:45 Image.gz -rwxr-xr-x 1 32011 32011 1068435 Jun 25 05:45 initramfs.gz -rwxr-xr-x 1 32011 32011 33457 Jun 25 05:45 sun50i-a64-pinephone.dtb root@wifirouter:/media/boot/multiboot/jumpdrive# pwd
Now, we need to flash Uboot and create Uboot script for booting this:
Sites Referenced/Inspiration:
https://www.96boards.org/documentation/iot/ https://github.com/dreemurrs-embedded/Jumpdrive https://github.com/dreemurrs-embedded/Pineloader https://www.thegeekstuff.com/2014/12/patch-command-examples/ https://stackoverflow.com/questions/9980186/how-to-create-a-patch-for-a-whole-directory-to-update-it https://courses.linuxchix.org/kernel-hacking-2002/11-creating-applying-and-submitting-patches.html
patch from the link above to work: