# patches

http://9legacy.org/9legacy/patch/pc-sdfakescsirw.diff
http://9legacy.org/9legacy/patch/pc-sdvirtio.diff
http://9legacy.org/9legacy/patch/pc-conf-sdvirtio.diff
http://9legacy.org/9legacy/patch/pc-ethervirtio.diff
http://9legacy.org/9legacy/patch/pc-conf-ethervirtio.diff

http://9legacy.org/9legacy/patch/ip-ipconfig-mask.diff

http://9legacy.org/9legacy/patch/dist-console.diff
http://9legacy.org/9legacy/patch/dist-inst-pbslba.diff

http://9legacy.org/9legacy/patch/9-tcp-mss.diff

# from cd image

wget http://9legacy.org/download/plan9-gce.iso.bz2

bunzip2 plan9-gce.iso.bz2
qemu-img create plan9-gce.img 10G

qemu-system-i386 -machine accel=kvm -net user -net nic,model=virtio -m 2048 -vga std -drive if=none,id=hd,file=plan9-gce.img -device virtio-scsi-pci,id=scsi -device scsi-hd,drive=hd -cdrom plan9-gce.iso -boot d

# from disk image

wget http://9legacy.org/download/plan9-gce.img.bz2

bunzip2 plan9-gce.img.bz2
cp --sparse=always plan9-gce.img plan9-gce.img.sparse
mv plan9-gce.img.sparse plan9-gce.img

qemu-system-i386 -net user -net nic,model=virtio -m 2048 -vga std -drive if=none,id=hd,file=plan9-gce.img -device virtio-scsi-pci,id=scsi -device scsi-hd,drive=hd

# same virtio-scsi unit number on qemu

qemu-img create disk0.raw 0
qemu-img create disk.raw 100G

qemu-system-x86_64 -machine accel=kvm -net user -net nic,model=virtio -m 2048 -vga std -drive if=none,id=hd0,file=disk0.raw -drive if=none,id=hd,file=disk.raw -device virtio-scsi-pci,id=scsi0 -device scsi-hd,drive=hd0 -device scsi-hd,drive=hd -cdrom plan9-gce.iso -boot d

qemu-system-x86_64 -machine accel=kvm -net user -net nic,model=virtio -m 2048 -vga std -drive if=none,id=hd0,file=disk0.raw -drive if=none,id=hd,file=disk.raw -device virtio-scsi-pci,id=scsi0 -device scsi-hd,drive=hd0 -device scsi-hd,drive=hd -boot c

# google compute engine

https://developers.google.com/compute/docs/images

gcloud auth login
gcloud config set project bell-labs

rm -f plan9-gce.tar.gz
cp plan9-gce.img disk.raw
tar Szcf plan9-gce.tar.gz disk.raw

gsutil cp /home/djc/qemu/plan9-gce.tar.gz gs://plan9
gcloud compute images create plan9 --source-uri gs://plan9/plan9-gce.tar.gz
gcloud compute instances create plan9-1 --zone europe-west1-a --image plan9 --can-ip-forward --machine-type g1-small --tags http-server

gcloud compute instances get-serial-port-output plan9-1 --zone europe-west1-a

gcloud compute instances delete plan9-1 --zone europe-west1-a -q
gcloud compute images delete plan9 -q
gsutil rm gs://plan9/plan9-gce.tar.gz

# firewall

gcloud compute firewall-rules create allow-plan9 --allow tcp:564 tcp:567 tcp:17007 tcp:17010

# gce configuration

in fossil.conf, remove /dev/sd00
in plan9.ini, replace sd00 by sd01
in plan9.ini, add 'console=0 b115200'

# gce-specific issues

See http://www.9legacy.org/9legacy/doc/gce/issues

# qemu configuration

Using virtio-blk, the virt disk is /dev/sdF0.
Using virtio-scsi, the first disk is /dev/sd00.