initial VERY rough commit

GNUmakefile

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+ARCH ?= $(shell uname -m)
+QEMU ?= qemu-system-$(ARCH)
+UBUNTU_ROOT ?= roots/ubuntu_wiredemo-admin.targetdisk.local
+SSH_PORT ?= 2222
+
+ifeq ($(ARCH),x86_64)
+  OVMF_ARCH := x64
+else ifeq ($(ARCH),x86)
+  OVMF_ARCH := ia32
+else ifneq (,$(findstring arm,$(ARCH)))
+  OVMF_ARCH := arm
+else
+  OVMF_ARCH := $(ARCH)
+endif
+
+QEMU_OVMF ?= /usr/share/ovmf/$(OVMF_ARCH)/OVMF.*fd
+
+QEMUOPTS ?= -cpu max -enable-kvm -smp $(shell nproc) \
+	    -nodefaults -no-user-config -nographic \
+	    -chardev stdio,id=virtcons0 \
+	    -device virtio-serial-pci \
+	    -device virtconsole,chardev=virtcons0 \
+	    -m 62G \
+	    -net user,hostfwd=tcp::$(SSH_PORT)-:22 \
+	    -net nic \
+	    -device virtio-9p-pci,id=fs0,fsdev=fsdev-fs0,mount_tag=fs0 \
+	    -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
+#	    -bios $(QEMU_OVMF) \
+#	    -bios /usr/share/qemu/qboot.rom
+#	    -machine microvm,accel=kvm,rtc=on \
+
+UBUNTU_ISO ?= iso/ubuntu/ubuntu-24.04.2-live-server-amd64.iso
+UBUNTU_ISO_ARGS ?= -drive file=$(UBUNTU_ISO),media=cdrom,id=virtiso1 \
+#		   -device virtio-blk-pci,drive=virtiso1 \
+#		   -kernel mnt/casper/vmlinuz \
+#		   -append "earlyprintk=ttyS0"
+
+UBUNTU_FAT_ARGS ?= -drive file=fat:rw:$(UBUNTU_ROOT)/boot,id=virtiso1 \
+
+$(UBUNTU_ROOT):
+	mkdir -p $@
+
+root1: $(UBUNTU_ROOT)
+
+roots/ubuntu_wiredemo-admin.wiredemo.local:
+	mkdir -p $@
+
+run1-installer: $(UBUNTU_ROOT)
+	$(QEMU) $(QEMUOPTS) $(UBUNTU_ISO_ARGS) \
+		-fsdev local,security_model=mapped,id=fsdev-fs0,multidevs=remap,path=$<
+
+run1: $(UBUNTU_ROOT)
+	$(QEMU) $(QEMUOPTS) \
+		-kernel $(UBUNTU_ROOT)/boot/$(shell cat $(UBUNTU_ROOT)/boot/vmlinuz) \
+		-append "earlyprintk=ttyS0 root=fs0 rw rootfstype=9p rootflags=trans=virtio,version=9p2000.L,msize=5000000,cache=mmap,posixacl console=ttyS0" \
+		-initrd $(UBUNTU_ROOT)/boot/$(shell cat $(UBUNTU_ROOT)/boot/initrd.img) \
+		-fsdev local,security_model=mapped,id=fsdev-fs0,multidevs=remap,path=$<
+
+.PHONY: root1 run1 run1-installer

README.md

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+# 9p Ubuntu Server VM
+There are still some rough edges here, but this is a GNU makefile that allows
+you to run a headless Ubuntu VM on a 9p filesystem.
+
+When I get my website back up, I'll link the blog post this inspired that
+explains what and why this is.
+
+## Requirements
+- A QEMU build with the 9p stuff (many distros include the stuff in their QEMU
+  packages)
+- GNU Make
+- OVMF EFI firmware (this requirement may go away later on)
+
+## Using
+Run the installer:
+```
+SSH_PORT=2221 UBUNTU_ISO=path/to/ubuntu_whatever.iso make run1-installer
+```
+
+More info on the installer coming soon...
+
+Enjoy your VM:
+```
+make run1
+```
+
+## TODO
+- pull down the Ubuntu ISO automagically so somewhere pointed to
+by `UBUNTU_ISO` automagically