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2.3 KiB
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GRUB2 Netboot
Use GRUB to network boot UEFI hardware.
Requirements
For local development, install the dependencies for libvirt with UEFI.
Ensure that you've gone through the bootcfg with rkt and bootcfg guides and understand the basics.
Containers
Run bootcfg with rkt, but mount the grub group example.
Network
On Fedora, add the metal0 interface to the trusted zone in your firewall configuration.
sudo firewall-cmd --add-interface=metal0 --zone=trusted
Run the coreos.com/dnsmasq ACI with rkt.
sudo rkt run coreos.com/dnsmasq:v0.3.0 --net=metal0:IP=172.15.0.3 -- -d -q --dhcp-range=172.15.0.50,172.15.0.99 --enable-tftp --tftp-root=/var/lib/tftpboot --dhcp-match=set:efi-bc,option:client-arch,7 --dhcp-boot=tag:efi-bc,grub.efi --dhcp-userclass=set:grub,GRUB2 --dhcp-boot=tag:grub,"(http;bootcfg.foo:8080)/grub","172.15.0.2" --log-queries --log-dhcp --dhcp-userclass=set:ipxe,iPXE --dhcp-boot=tag:pxe,undionly.kpxe --dhcp-boot=tag:ipxe,http://bootcfg.foo:8080/boot.ipxe --address=/bootcfg.foo/172.15.0.2
Client VM
Create UEFI VM nodes which have known hardware attributes.
sudo ./scripts/libvirt create-uefi
Docker
If you use Docker, run bootcfg according to bootcfg with Docker, but mount the grub group example. Then start the coreos/dnsmasq Docker image, which bundles a grub.efi.
sudo docker run --rm --cap-add=NET_ADMIN quay.io/coreos/dnsmasq -d -q --dhcp-range=172.17.0.43,172.17.0.99 --enable-tftp --tftp-root=/var/lib/tftpboot --dhcp-match=set:efi-bc,option:client-arch,7 --dhcp-boot=tag:efi-bc,grub.efi --dhcp-userclass=set:grub,GRUB2 --dhcp-boot=tag:grub,"(http;bootcfg.foo:8080)/grub","172.17.0.2" --log-queries --log-dhcp --dhcp-option=3,172.17.0.1 --dhcp-userclass=set:ipxe,iPXE --dhcp-boot=tag:pxe,undionly.kpxe --dhcp-boot=tag:ipxe,http://bootcfg.foo:8080/boot.ipxe --address=/bootcfg.foo/172.17.0.2
Create a VM to verify the machine network boots.
sudo virt-install --name uefi-test --pxe --boot=uefi,network --disk pool=default,size=4 --network=bridge=docker0,model=e1000 --memory=1024 --vcpus=1 --os-type=linux --noautoconsole