I use this to create an manage a native 9front vm on gcp.

The `./dev` script hardcodes some of my own gcp project config (project, zone, etc)
but could still be useful to you.

Simple: prepare the disk image in qemu, upload to a gcp disk image.

Steps
- qemu-img create -f raw disk.raw 10G
- Optionally use ./dev to start the vm: ./dev vm (9front-iso|test)
- Start qemu with 9front.iso and blank disk.raw
- Install 9front on disk
- Reboot qemu to test
- Before upload to gcp, add to plan9.ini:
    vgasize=text
    console=0
    nousbrc=
- Shutdown qemu
- Upload image: ./dev upload NAME
- Start vm and connect to console: ./dev start NAME

Problems
- If using cwfs and the vm boots on the wrong disk (sd01 vs sd00):
    At bootprompt add "-c", will prompt for config, enter the filsys lines below.
    To make permanent:
        cirno# cat oo
        filsys main c(/dev/sd01/fscache)(/dev/sd01/fsworm)
        filsys dump o
        filsys other /dev/sd01/other
        end
        cirno# cat oo >> /srv/cwfs.cmd
        cirno# fshalt -r

Obsolete
If ever needed to boot via grub, this worked, with a small partition for grub
at beg of disk:
    /boot/grub/grub.cfg:
        insmod part_msdos
        set root='hd0,msdos2'
        set timeout=3
        serial --unit=0 --speed=9600
        terminal_input serial
        terminal_output serial
        menuentry "plan9" {
            chainloader +1
        }