Update README.md

Author: taylorific

centos/cloud/x86_64/README.md

@@ -48,6 +48,54 @@ $ virsh shutdown centos-stream-10
 $ virsh undefine centos-stream-10 --nvram --remove-all-storage
 ```
 
+## CentOS Stream 10 BIOS virtual firmware
+
+```
+cd centos/cloud/x86_64
+packer init .
+PACKER_LOG=1 packer build \
+  -var-file centos-stream-10-bios-x86_64.pkrvars.hcl \
+  centos.pkr.hcl
+```
+
+```
+$ sudo qemu-img convert \
+    -f qcow2 \
+    -O qcow2 \
+    output-centos-stream-10-bios-x86_64/centos-stream-10-bios-x86_64.qcow2 \
+    /var/lib/libvirt/images/centos-stream-10-bios.qcow2
+$ sudo qemu-img resize \
+    -f qcow2 \
+    /var/lib/libvirt/images/centos-stream-10-bios.qcow2 \
+    32G
+```
+
+```
+virt-install \
+  --connect qemu:///system \
+  --name centos-stream-10-bios \
+  --boot uefi \
+  --memory 4096 \
+  --vcpus 2 \
+  --os-variant centos-stream9 \
+  --disk /var/lib/libvirt/images/centos-stream-10-bios.qcow2,bus=virtio \
+  --network network=default,model=virtio \
+  --graphics spice \
+  --noautoconsole \
+  --console pty,target_type=serial \
+  --import \
+  --debug
+
+virsh console centos-stream-10-bios
+
+# login with packer user
+```
+
+```
+$ virsh shutdown centos-stream-10-bios
+$ virsh undefine centos-stream-10-bios --nvram --remove-all-storage
+```
+
 ## CentOS Stream 9 UEFI virtual firmware
 
 ```
@@ -95,3 +143,51 @@ virsh console centos-stream-9
 $ virsh shutdown centos-stream-9
 $ virsh undefine centos-stream-9 --nvram --remove-all-storage
 ```
+
+## CentOS Stream 9 BIOS virtual firmware
+
+```
+cd centos/cloud/x86_64
+packer init .
+PACKER_LOG=1 packer build \
+  -var-file centos-stream-9-bios-x86_64.pkrvars.hcl \
+  centos.pkr.hcl
+```
+
+```
+$ sudo qemu-img convert \
+    -f qcow2 \
+    -O qcow2 \
+    output-centos-stream-9-bios-x86_64/centos-stream-9-bios-x86_64.qcow2 \
+    /var/lib/libvirt/images/centos-stream-9-bios.qcow2
+$ sudo qemu-img resize \
+    -f qcow2 \
+    /var/lib/libvirt/images/centos-stream-9-bios.qcow2 \
+    32G
+```
+
+```
+virt-install \
+  --connect qemu:///system \
+  --name centos-stream-9-bios \
+  --boot uefi \
+  --memory 4096 \
+  --vcpus 2 \
+  --os-variant centos-stream9 \
+  --disk /var/lib/libvirt/images/centos-stream-9-bios.qcow2,bus=virtio \
+  --network network=default,model=virtio \
+  --graphics spice \
+  --noautoconsole \
+  --console pty,target_type=serial \
+  --import \
+  --debug
+
+virsh console centos-stream-9-bios
+
+# login with packer user
+```
+
+```
+$ virsh shutdown centos-stream-9-bios
+$ virsh undefine centos-stream-9-bios --nvram --remove-all-storage
+```