try ubuntu core on qemu
#ovmf is to ensure compatibility with the required UEFI features in ubuntu core
sudo apt install qemu-kvm ovmf
kvm-ok
#swtpm is to provide a TPM emulator
sudo snap install --edge test-snapd-swtpm
#Download ubuntu core - https://ubuntu.com/core/docs/supported-platforms
wget https://cdimage.ubuntu.com/ubuntu-core/24/stable/current/ubuntu-core-24-amd64.img.xz
xz -d ubuntu-core-24-amd64.img.xz
#With TPM emulation and full disk encryption
sudo qemu-system-x86_64 -enable-kvm -smp 1 -m 2048 -machine q35 -cpu host -global ICH9-LPC.disable_s3=1 \
-net nic,model=virtio -net user,hostfwd=tcp::8022-:22,hostfwd=tcp::8090-:80 \
-drive file=/usr/share/OVMF/OVMF_CODE.secboot.fd,if=pflash,format=raw,unit=0,readonly=on \
-drive file=/usr/share/OVMF/OVMF_VARS.ms.fd,if=pflash,format=raw,unit=1 \
-drive "file=/images/kvm/ubuntu-core-24-amd64.img",if=none,format=raw,id=disk1 \
-device virtio-blk-pci,drive=disk1,bootindex=1 -serial mon:stdio
#https://login.ubuntu.com and https://login.ubuntu.com/ssh-keys
ssh <your-name>@localhost -p 8022
try ubuntu core on raspberry pi
#download image from https://ubuntu.com/core/docs/supported-platforms , eg: ubuntu-core-24-arm64+raspi.img.xz
xz -d ubuntu-core-24-arm64+raspi.img.xz
sudo dd if=ubuntu-core-24-arm64+raspi.img of=/dev/sdb status=progress; sync
try ubuntu core on x64 computer
#dd to usb or disk
sudo dd if=/images/kvm/ubuntu-core-24-amd64.img of=/dev/sdb status=progress; sync
Reference
[1] https://ubuntu.com/core/docs/testing-with-qemu
