TLDR qemu

buat file namanya setup-network.sh, lalu isi dengan

sudo ip link add br0-lan type bridge
sudo ip tuntap add tap0 mode tap
sudo ip tuntap add tap1 mode tap
sudo ip tuntap add tap2 mode tap

sudo ip link set tap0 master br0-lan
sudo ip link set tap1 master br0-lan
sudo ip link set tap2 master br0-lan

sudo ip link set br0-lan up
sudo ip link set tap0 up
sudo ip link set tap1 up
sudo ip link set tap2 up

sudo ip a

lalu lakukan ini agar bisa di exec via terminal

sudo chmod 666 setup-network.sh
sh ./setup-network.sh

running qemu

run routerOS

# download dahulu chr-7.19.1.img dari web resminya
qemu-img convert -f raw -O qcow2 chr-7.19.1.img chr7.qcow2

# run chr
# port yang dipakai
# - 8291: untuk winbox
# - 30022: untuk keperluan sftp, utak atik file hotspot nya
qemu-system-x86_64 \
	-enable-kvm \
	-smp 4 \
	-m 256M \
	-drive file=chr7.qcow2,format=qcow2 \
	-boot order=d \
	-net user,hostfwd=tcp::8291-:8291,hostfwd=tcp::30022-:22 \
	-net nic \
	-nographic \
	-netdev tap,id=net0,ifname=tap0,script=no,downscript=no \
	-device virtio-net-pci,netdev=net0,mac=02:11:2a:3b:ff:c3

ubuntu server

buat image (HDD virtual untuk os kita nanti)

qemu-img create -f qcow2 ubuntu-server.img 15G

run iso (saat install)

qemu-system-x86_64 \
	-enable-kvm \
	-boot order=d \
	-cdrom GANTI_NAMA_ISO_UBUNTU.iso \
	-drive file=ubuntu-server.img,format=qcow2 \
	-m 4G \
	-smp 4 \
	-netdev user,id=net0,hostfwd=tcp::20022-:22,hostfwd=tcp::10000-:5432 \
	-device e1000,netdev=net0 \
	-netdev tap,id=net1,ifname=tap1,script=no,downscript=no \
	-device virtio-net-pci,netdev=net1,mac=02:11:2a:3b:aa:c4 \
	-vga virtio

lalu run hasil image (Default no graphic, jadi ntar kita ssh pakai ssh -p 20022 root@127.0.0.1 biar bisa copas)

dan juga kita optimalisasi dengan cara pakai nographic, tanpa cdrom, map port yang dibutuhkan saja

port yg di forward:

20022: untuk remote
10302: untuk keperluan ngoding laravel
10000: untuk keperluan postgresql, siapa tahu mau di remote via adminer, pgadmin dari local, atau cuman psql dll

qemu-system-x86_64 \
	-enable-kvm \
	-boot order=d \
	-drive file=ubuntu-server.img,format=qcow2 \
	-m 4G \
	-smp 4 \
	-netdev user,id=net0,hostfwd=tcp::20022-:22,hostfwd=tcp::10302-:10302,hostfwd=tcp::10000-:5432 \
	-device e1000,netdev=net0 \
	-netdev tap,id=net1,ifname=tap1,script=no,downscript=no \
	-device virtio-net-pci,netdev=net1,mac=02:11:2a:3b:aa:c4 \
	-vga virtio \
	-nographic

VPS KVM siap jadi bahan ujicoba, langsung test saja ke ssh -p 20022 root@127.0.0.1

experimental (jangan dipakai / do not use)

untuk catatan pribadi bahan experimental UEFI, KVM, sama custom machine q35

experimental 1 (safest)

qemu-system-x86_64 \
    -name guest=ubuntu22.04,debug-threads=on \
    -machine type=pc,accel=kvm \
    -cpu host \
    -enable-kvm \
    -boot order=d \
    -drive if=pflash,format=raw,readonly=on,file=/usr/share/edk2/x64/OVMF_CODE.4m.fd \
    -drive if=pflash,format=raw,file=OVMF_VARS_ubuntu_server_gpt.4m.fd \
    -drive file=ubuntu-server.img,format=qcow2 \
    -m 4G \
    -smp 4 \
    -netdev user,id=net0,hostfwd=tcp::20022-:22,hostfwd=tcp::10000-:5432 \
    -device virtio-net-pci,netdev=net0 \
    -netdev tap,id=net1,ifname=tap1,script=no,downscript=no \
    -device virtio-net-pci,netdev=net1,mac=02:11:2a:3b:aa:c4

dgn iso

qemu-system-x86_64 \
	-name guest=ubuntu22.04,debug-threads=on \
	-machine type=pc,accel=kvm \
	-cpu host \
	-enable-kvm \
	-boot order=d \
	-cdrom a.iso \
	-drive if=pflash,format=raw,readonly=on,file=/usr/share/edk2/x64/OVMF_CODE.4m.fd \
	-drive if=pflash,format=raw,file=OVMF_VARS_ubuntu_server_gpt.4m.fd \
	-drive file=ubuntu-server.img,format=qcow2 \
	-m 4G \
	-smp 4 \
	-netdev user,id=net0,hostfwd=tcp::20022-:22,hostfwd=tcp::10302-:10302,hostfwd=tcp::10000-:5432 \
	-device e1000,netdev=net0 \
	-netdev tap,id=net1,ifname=tap1,script=no,downscript=no \
	-device virtio-net-pci,netdev=net1,mac=02:11:2a:3b:aa:c4 \
	-vga virtio

custom machine chipset PC, KVM, UEFI headless

qemu-system-x86_64 \
	-name guest=ubuntu22.04,debug-threads=on \
	-machine type=pc,accel=kvm \
	-cpu host \
	-enable-kvm \
	-boot order=d \
	-drive if=pflash,format=raw,readonly=on,file=/usr/share/edk2/x64/OVMF_CODE.4m.fd \
	-drive if=pflash,format=raw,file=OVMF_VARS_ubuntu_server_gpt.4m.fd \
	-drive file=ubuntu-server.img,format=qcow2 \
	-m 4G \
	-smp 4 \
	-netdev user,id=net0,hostfwd=tcp::20022-:22,hostfwd=tcp::10302-:10302,hostfwd=tcp::10000-:5432 \
	-device e1000,netdev=net0 \
	-netdev tap,id=net1,ifname=tap1,script=no,downscript=no \
	-device virtio-net-pci,netdev=net1,mac=02:11:2a:3b:aa:c4 \
	-vga virtio \
	-nographic

working (part 2)

qemu-system-x86_64 \
          -enable-kvm \
          -boot order=d \
          -drive if=pflash,format=raw,readonly=on,file=/usr/share/edk2/x64/OVMF_CODE.4m.fd \
          -drive if=pflash,format=raw,file=OVMF_VARS_ubuntu_server_gpt.4m.fd \
          -drive file=ubuntu-server.img,format=qcow2 \
          -m 4G \
          -smp 4 \
          -netdev user,id=net0,hostfwd=tcp::20022-:22,hostfwd=tcp::10000-:5432 \
          -device e1000,netdev=net0 \
          -netdev tap,id=net1,ifname=tap1,script=no,downscript=no \
          -device virtio-net-pci,netdev=net1,mac=02:11:2a:3b:aa:c4 \
          -vga virtio

no iso (headless)

qemu-system-x86_64 \
	-name guest=ubuntu22.04,debug-threads=on \
	-machine type=q35,accel=kvm \
	-cpu host \
	-enable-kvm \
	-boot order=d \
	-drive if=pflash,format=raw,readonly=on,file=/usr/share/edk2/x64/OVMF_CODE.4m.fd \
	-drive if=pflash,format=raw,file=OVMF_VARS_ubuntu_server_gpt.4m.fd \
	-drive file=ubuntu-server.img,format=qcow2 \
	-m 4G \
	-smp 4 \
	-netdev user,id=net0,hostfwd=tcp::20022-:22,hostfwd=tcp::10000-:5432 \
	-device e1000,netdev=net0 \
	-netdev tap,id=net1,ifname=tap1,script=no,downscript=no \
	-device virtio-net-pci,netdev=net1,mac=02:11:2a:3b:aa:c4

Fadhil Journal & Notes

TLDR qemu

running qemu

ubuntu server

experimental (jangan dipakai / do not use)

experimental 1 (safest)