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Add some notes on raspberry pi usb + btrfs ; add some notes about arduino-cli

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KemoNine 1 year ago
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Signed by: kemonine <kemonine@lollipopcloud.solutions> GPG Key ID: 3BC2928798AE11AB
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      advanced/arduino.txt
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      advanced/raspberrry_pi_usb_btrfs_root.md

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advanced/arduino.txt View File

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Some misc notes on arduino-cli.
This is mostly UNTESTED. YMMV.
https://github.com/arduino/arduino-cli
use arm32 + multiarch for version 0.3.6-alpha on arm64 hardware
apt install gcc-avr
arduino-cli core update-index
arduino-cli config init
nano -w ~/.arduino15/arduino-cli.yaml
board_manager:
additional_urls:
- https://raw.githubusercontent.com/adafruit/arduino-board-index/gh-pages/package_adafruit_index.json
- https://raw.githubusercontent.com/sparkfun/Arduino_Boards/master/IDE_Board_Manager/package_sparkfun_index.json
- https://dl.espressif.com/dl/package_esp32_index.json
arduino-cli core update-index
arduino-cli core install arduino:avr
arduino-cli core install arduino:sam
arduino-cli core install arduino:samd
arduino-cli core install adafruit:avr
arduino-cli core install adafruit:samd
arduino-cli core install SparkFun:avr
arduino-cli core install SparkFun:samd
arduino-cli core install esp32:esp32
arduino-cli core install esp8266:esp8266

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advanced/raspberrry_pi_usb_btrfs_root.md View File

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# Running a Raspberry Pi with USB based btrfs root filesystem
This is a very advanced configuration and here as a set of notes for the more daring users building remixes.
Please note: *you will need to change ```/dev/sda``` and ```/dev/sdb``` as well as any sizes and offsets to match your needs and approach*.
``` bash
dd if=/dev/sda of=/dev/sdb bs=1M
parted /dev/sdb
mkpart
33G
-1
q
mkfs.btrfs \
-L writable \
/dev/sdb3
mkdir /mnt/new
mkdir /mnt/orig
mount /dev/sdb2 /mnt/orig
mount -o autodefrag,compress,ssd,ssd_spread /dev/sdb3 /mnt/new
rsync -aPr --delete-after /mnt/orig/ /mnt/new/
nano -w /mnt/new/etc/fstab
btrfs filesystem type && mount options
mount /dev/sdb1 /mnt/new/boot/firmware
nano -w /mnt/new/boot/firmware/config.txt /mnt/new/boot/firmware/cmdline.txt
umount /mnt/orig
pvcreate /dev/sdb2
vgcreate misc /dev/sdb2
lvcreate -C y -n swap.1 -L 1G misc
lvcreate -n scratch -L 6G misc
mkswap /dev/mapper/misc-swap.1
mkfs.btrfs -L scratch /dev/mapper/misc-scratch
mkdir /scratch
nano -w /mnt/new/etc/fstab
add lvm swap
add lvm scratch
```

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