Ubuntu/Raspberry Pi

Network Config: ls -lah /Volumes/system-boot/|grep network-config cat <<EOF > /Volumes/system-boot/network-config version: 2 ethernets: eth0: dhcp4: true optional: true wifis: wlan0: dhcp4: true optional: true access-points: "ChorkeOrg_2.4GHz": password: "sadaqah!" "ChorkeOrg": password: "sadaqah!" EOF	User Data: ls -lah /Volumes/system-boot/|grep user-data cat <<EOF > /Volumes/system-boot/user-data #cloud-config system_info: default_user: name: pi chpasswd: expire: true list: - pi:ubuntu ssh_pwauth: true runcmd: - [ df, -h, / ] - [ sh, -xc, "echo $(date) ': hello academian!'" ] power_state: mode: reboot EOF
ls -lah /Volumes/system-boot/{.fseventsd,.Spotlight-V100} rm -rf /Volumes/system-boot/{.fseventsd,.Spotlight-V100}
ssh [email protected] :<<EOF The authenticity of host '10.19.83.111 (10.19.83.111)' can't be established. ECDSA key fingerprint is SHA256:9Lgs5Xxsypm4s/3F87TU2EMh6vUz6pjAMaNHXUDImVs. Are you sure you want to continue connecting (yes/no/[fingerprint])? yes Warning: Permanently added '10.19.83.111' (ECDSA) to the list of known hosts. [email protected]'s password: You are required to change your password immediately (administrator enforced) Welcome to Ubuntu 20.04.3 LTS (GNU/Linux 5.4.0-1042-raspi aarch64) WARNING: Your password has expired. You must change your password now and login again! Changing password for pi. Current password: New password: Retype new password: passwd: password updated successfully Connection to 10.19.83.111 closed. EOF
ssh [email protected] :<<EOF [email protected]'s password: Welcome to Ubuntu 20.04.3 LTS (GNU/Linux 5.4.0-1042-raspi aarch64) EOF

Network Config

dpkg --list|grep network-manager dpkg --list|grep wpasupplicant dpkg --list|grep iw	apt -qq list network-manager apt -qq list wpasupplicant apt -qq list iwd	sudo apt install network-manager sudo apt install wpasupplicant sudo apt install iwd
sudo nmcli dev help sudo nmcli con help sudo nmcli help	sudo nmcli device wifi list sudo nmcli device sudo nmcli con	sudo nmcli dev wifi con 'ChorkeOrg_2.4GHz' password 'sadaqah!' sudo nmcli dev wifi con 'ChorkeInc' password 'sadaqah!' sudo nmcli dev wifi con 'ChorkeOrg' password 'sadaqah!'
sudo iw dev wlan0 scan|grep SSID sudo nmcli dev wifi rescan sudo nmcli dev wifi	nmcli radio all sudo apt install net-tools	sudo systemctl status NetworkManager.service sudo systemctl status wpa_supplicant.service sudo systemctl status iwd.service

Device Status

sudo nmcli dev :' DEVICE TYPE STATE CONNECTION wlan0 wifi unavailable -- eth0 ethernet unmanaged -- lo loopback unmanaged -- ' ifconfig	lsblk :' NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT loop0 7:0 0 48.9M 1 loop /snap/core18/2127 loop1 7:1 0 57.4M 1 loop /snap/core20/1171 loop2 7:2 0 62M 1 loop /snap/lxd/21032 loop3 7:3 0 49M 1 loop /snap/core18/2248 loop4 7:4 0 28.1M 1 loop /snap/snapd/12707 loop5 7:5 0 60.7M 1 loop /snap/lxd/21843 loop6 7:6 0 28.2M 1 loop /snap/snapd/13643 mmcblk0 179:0 0 119.3G 0 disk ├─mmcblk0p1 179:1 0 256M 0 part /boot/firmware └─mmcblk0p2 179:2 0 119G 0 part / '
	df -h :' Filesystem Size Used Avail Use% Mounted on udev 3.8G 0 3.8G 0% /dev tmpfs 782M 4.0M 778M 1% /run /dev/mmcblk0p2 118G 2.8G 110G 3% / tmpfs 3.9G 0 3.9G 0% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup /dev/loop0 49M 49M 0 100% /snap/core18/2127 /dev/loop1 58M 58M 0 100% /snap/core20/1171 /dev/loop3 49M 49M 0 100% /snap/core18/2248 /dev/loop2 62M 62M 0 100% /snap/lxd/21032 /dev/loop4 29M 29M 0 100% /snap/snapd/12707 /dev/loop5 61M 61M 0 100% /snap/lxd/21843 /dev/loop6 29M 29M 0 100% /snap/snapd/13643 /dev/mmcblk0p1 253M 120M 133M 48% /boot/firmware tmpfs 782M 0 782M 0% /run/user/1000 '
	sudo fdisk -l :' Disk /dev/loop0: 48.92 MiB, 51277824 bytes, 100152 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk /dev/loop1: 57.42 MiB, 60198912 bytes, 117576 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk /dev/loop2: 61.98 MiB, 64962560 bytes, 126880 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk /dev/loop3: 48.98 MiB, 51335168 bytes, 100264 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk /dev/loop4: 28.7 MiB, 29433856 bytes, 57488 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk /dev/loop5: 60.68 MiB, 63610880 bytes, 124240 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk /dev/loop6: 28.22 MiB, 29581312 bytes, 57776 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk /dev/mmcblk0: 119.26 GiB, 128043712512 bytes, 250085376 sectors 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: 0xf66f0719 Device Boot Start End Sectors Size Id Type /dev/mmcblk0p1 * 2048 526335 524288 256M c W95 FAT32 (LBA) /dev/mmcblk0p2 526336 250085342 249559007 119G 83 Linux '
	sudo fdisk /dev/mmcblk0 -l :' Disk /dev/mmcblk0: 119.26 GiB, 128043712512 bytes, 250085376 sectors 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: 0xf66f0719 Device Boot Start End Sectors Size Id Type /dev/mmcblk0p1 * 2048 526335 524288 256M c W95 FAT32 (LBA) /dev/mmcblk0p2 526336 250085342 249559007 119G 83 Linux '

References

Change default ubuntu user via CloudInit On AWS EC2 Change default ubuntu user via CloudInit on Pi4 Detect the OS Name from a Bash Script Detect the OS Type from a Bash Script Fedora/Raspberry Pi Raspberry Pi Quarkus Podman Fedora Docker

The AArch64 hardware, software, cloud & JDK CloudInit to change the default ubuntu user Gist Install GraalVM CE on Linux Git Download for Linux and Unix Native javac built with GraalVM Convention for Workspaces Install NetworkManager Convention for Projects ARM64 vs. AArch64 Linux Containers

Ubuntu 20.04 Network Management