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https://github.com/inindev/rock-5b

debian arm64 linux for the rock 5b
https://github.com/inindev/rock-5b

arm arm64 debian debian-linux device-tree kernel linux nvme rock-5b u-boot

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debian arm64 linux for the rock 5b

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README 

        
# rock-5b

#### *Debian ARM64 Linux for the Radxa Rock 5 Model B*



This Debian ARM64 Linux image is built directly from official packages using the Debian [Debootstrap](https://wiki.debian.org/Debootstrap) utility, see: https://github.com/inindev/rock-5b/blob/main/debian/make_debian_img.sh#L131



Most patches are directly available from the Debian repos using the built-in ```apt``` package manager, see: https://github.com/inindev/rock-5b/blob/main/debian/make_debian_img.sh#L343-L350



* Note: The kernel in this bundle is from kernel.org and will not get updates from debian.







---

### debian bookworm setup







**1. download image**

```

wget https://github.com/inindev/rock-5b/releases/download/v12-6.7-rc7/rock-5b_bookworm-v12-6.7-rc7.img.xz

```







**2. determine the location of the target micro sd card**



 * before plugging-in device

```

ls -l /dev/sd*

ls: cannot access '/dev/sd*': No such file or directory

```



 * after plugging-in device

```

ls -l /dev/sd*

brw-rw---- 1 root disk 8, 0 Jul 15 10:33 /dev/sda

```

* note: for mac, the device is ```/dev/rdiskX```







**3. in the case above, substitute 'a' for 'X' in the command below (for /dev/sda)**

```

sudo su

xzcat rock-5b_bookworm-v12-6.7-rc7.img.xz > /dev/sdX

sync

```



#### when the micro sd has finished imaging, eject it and boot the rock 5b to finish setup







**4. login account**

```

user: debian

pass: debian

```







**5. take updates**

```

sudo apt update

sudo apt upgrade

```







**6. create account & login as new user**

```

sudo adduser youruserid

echo ' ALL=(ALL) NOPASSWD: ALL' | sudo tee /etc/sudoers.d/

sudo chmod 440 /etc/sudoers.d/

```







**7. lockout and/or delete debian account**

```

sudo passwd -l debian

sudo chsh -s /usr/sbin/nologin debian

```



```

sudo deluser --remove-home debian

sudo rm /etc/sudoers.d/debian

```







**8. change hostname (optional)**

```

sudo nano /etc/hostname

sudo nano /etc/hosts

```







---

### installing on m.2 ssd /dev/nvme0n1 media







**1. while booted from mmc, download and copy the image file on to the ssd media**

```

wget https://github.com/inindev/rock-5b/releases/download/v12-6.7-rc7/rock-5b_bookworm-v12-6.7-rc7.img.xz

sudo su

xzcat rock-5b_bookworm-v12-6.7-rc7.img.xz > /dev/nvme0n1

sync

```







**2. remove mmc media and reboot**







---

### booting from spi nor flash



**1. boot from removable mmc**



[Follow the instructions](https://github.com/inindev/rock-5b#debian-bookworm-setup) for creating bootable mmc media.

Insert the mmc media and boot the device.



Note: The mmc media has a one-time reboot during first setup as it expands to the size of the mmc media.







**2. install mtd-utils**



once linux is booted from the removable mmc, install mtd-utils

```

sudo apt update

sudo apt -y install mtd-utils

```







**3. erase spi flash**

```

sudo flash_erase /dev/mtd0 0 0

sudo flash_erase /dev/mtd1 0 0

sudo flash_erase /dev/mtd2 0 0

sudo flash_erase /dev/mtd3 0 0

```







**4. write u-boot to spi flash**

```

wget https://github.com/inindev/rock-5b/releases/download/v12-6.7-rc7/idbloader.img

wget https://github.com/inindev/rock-5b/releases/download/v12-6.7-rc7/u-boot.itb

sudo flashcp -vA idbloader.img /dev/mtd0

sudo flashcp -vA u-boot.itb /dev/mtd2

```







Once the spi flash has been written, the boot sequence should prefer removable mmc media if present, otherwise boot m.2 nvme ssd.







---

### building debian bookworm arm64 for the rock-5b from scratch







The build script builds native arm64 binaries and thus needs to be run from an arm64 device such as an odroid m1 running 

a 64 bit arm linux. The initial build of this project used a debian arm64 raspberry pi4, but now uses a rock 5b running 

debian trixie arm64.







**1. clone the repo**

```

git clone https://github.com/inindev/rock-5b.git

cd rock-5b

```







**2. run the debian build script**

```

cd debian

sudo sh make_debian_img.sh nocomp

```

* note: edit the build script to change various options: ```nano make_debian_img.sh```







**3. the output if the build completes successfully**

```

mmc_2g.img

```



**4. install the kernel**

```

cd debian

sudo sh install_kernel.sh

```

* note: kernel needs to be built and available in the ```../kernel``` directory