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13
README.md
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13
README.md
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# VMs
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## HOW-TO
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To start (or create) a VM, go in the desired folder and run
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```console
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$ ./run.sh
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```
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## USB Passthrough
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If you need USB passthrough, uncomment and fill in the corresponding line in
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`run.sh`.
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[You may need root privileges](https://wiki.archlinux.org/title/QEMU#Pass-through_host_USB_device).
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#!/bin/bash -e
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cd "$(dirname "$0")"
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. ./lib.sh
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if [ -f hda.qcow2 ]; then
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echo -e "Disk file exists. Are you sure you don't want" \
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"\e[1m\e[31m./run.sh\e[0m?\nCtrl-C to interrupt" >&2
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read -r
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fi
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qemu-img create -f qcow2 hda.qcow2 10G
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CMD=(
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"${CMD[@]}"
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-drive file=arch.iso,index=1,media=cdrom,readonly=on
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)
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"${CMD[@]}"
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#!/bin/bash -e
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arch=''
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curl -LC- \
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-o arch.iso "$arch"
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23
arch/lib.sh
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arch/lib.sh
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#!/bin/bash -e
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RAM="$(free -g | awk '/^Mem:/{print $2 - 2}')"
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if [ "$RAM" -le 2 ]; then RAM=2
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elif [ "$RAM" -gt 32 ]; then RAM=32; fi
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RAM="${RAM}G"
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CMD=(
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qemu-system-x86_64
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-accel kvm
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-M q35
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# usb
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-device qemu-xhci
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-cpu host
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-m "2G,maxmem=$RAM"
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-vga virtio
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#-drive if=virtio,file=hda.qcow2
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# shared memory
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-object memory-backend-ram,id=mem,size=2G,share=on
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-numa node,memdev=mem
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)
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14
arch/run.sh
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arch/run.sh
@ -1,12 +1,20 @@
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#!/bin/bash -e
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cd "$(dirname "$0")"
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. ./lib.sh
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. ../lib.sh
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hda='https://geo.mirror.pkgbuild.com/images/latest/Arch-Linux-x86_64-basic.qcow2'
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if ! [ -f hda.qcow2 ]; then
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ask_yn "hda does not exist. Download?" \
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&& curl -LC- -o hda.qcow2 "$hda" \
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|| exit 1
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fi
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CMD=(
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"${CMD[@]}"
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-nic user,model=virtio-net-pci
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# usb passthrough, might need root privileges
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#-device usb-host,vendorid=0x058f,productid=0x6387
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# USB passthrough, might need root privileges
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#-device usb-host,vendorid=0xffff,productid=0xffff
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)
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"${CMD[@]}"
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20
debian12/run.sh
Executable file
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debian12/run.sh
Executable file
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#!/bin/bash -e
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cd "$(dirname "$0")"
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. ../lib.sh
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hda='https://cloud.debian.org/images/cloud/bookworm/latest/debian-12-nocloud-amd64.qcow2'
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if ! [ -f hda.qcow2 ]; then
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ask_yn "hda does not exist. Download?" \
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&& curl -LC- -o hda.qcow2 "$hda" \
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|| exit 1
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fi
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CMD=(
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"${CMD[@]}"
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-nic user,model=virtio-net-pci
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# USB passthrough, might need root privileges
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#-device usb-host,vendorid=0xffff,productid=0xffff
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)
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"${CMD[@]}"
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#!/bin/bash -e
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function ask_yn() {
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local ans
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printf "$1 (Y/n) " >&2
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read -r ans
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case "${ans,,}" in
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y*|'') return 0 ;;
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*) return 1 ;;
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esac
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}
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RAM="$(free -g | awk '/^Mem:/{print $2 - 2}')"
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if [ "$RAM" -le 2 ]; then RAM=2
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@ -11,12 +22,12 @@ CMD=(
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qemu-system-x86_64
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-accel kvm
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-M q35
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# usb
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-device qemu-xhci
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-cpu host
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-m "2G,maxmem=$RAM"
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-vga virtio
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-drive if=virtio,file=hda.qcow2
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# usb
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-device qemu-xhci
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# shared memory
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-object memory-backend-ram,id=mem,size=2G,share=on
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-numa node,memdev=mem
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15
win2k22/create.sh
Executable file → Normal file
15
win2k22/create.sh
Executable file → Normal file
@ -1,20 +1,19 @@
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#!/bin/bash -e
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cd "$(dirname "$0")"
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. ./lib.sh
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. ../lib.sh
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if [ -f hda.qcow2 ]; then
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echo -e "Disk file exists. Are you sure you don't want" \
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"\e[1m\e[31m./run.sh\e[0m?\nCtrl-C to interrupt" >&2
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read -r
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if ! [ -f win2k22.iso ] || ! [ -f virtio.iso ]; then
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ask_yn "win2k22.iso and/or virtio.iso not found, download?" \
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&& bash ./download_isos.sh \
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|| exit 1
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fi
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qemu-img create -f qcow2 hda.qcow2 40G
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CMD=(
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"${CMD[@]}"
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-drive file=win2k22.iso,index=1,media=cdrom,readonly=on
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-drive file=virtio.iso,index=2,media=cdrom,readonly=on
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#-drive file.driver=http,file.filename=http://example.com/image.qcow2
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-drive file=win2k22.iso,media=cdrom,readonly=on
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-drive file=virtio.iso,media=cdrom,readonly=on
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-nic none # you don't want internet access for a windows installation
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)
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#!/bin/bash -e
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cd "$(dirname "$0")"
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. ./lib.sh
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. ../lib.sh
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if ! [ -f hda.qcow2 ]; then
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ask_yn "hda.qcow2 not found, create?" \
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&& bash ./create.sh \
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|| exit 1
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fi
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CMD=(
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"${CMD[@]}"
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-nic user,model=virtio-net-pci
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# usb passthrough, might need root privileges
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-device usb-host,vendorid=0x058f,productid=0x6387
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# USB passthrough, might need root privileges
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#-device usb-host,vendorid=0xffff,productid=0xffff
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)
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"${CMD[@]}"
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