**Summary**
`sudo make testraid -- --uefi` fails. Install and first boot succeed normally under UEFI, but the test then simulates a failed RAID-1 member by wiping the primary disk and rebooting off the surviving mirror disk — and that reboot never reaches a login prompt. QEMU's boot-order arguments correctly prioritize the surviving disk, so this isn't a test-script ordering issue; OVMF simply has no bootable UEFI entry to find there. It appears VyOS's RAID-1 installer only makes the primary disk independently UEFI-bootable (ESP + GRUB EFI stub), the way it replicates BIOS/MBR boot code to both disks, but doesn't replicate the same for UEFI. The BIOS-only equivalent (make testraid without --uefi) passes today, and no existing CI target exercises --raid and --uefi together, so this gap has gone uncaught.
**Steps to reoduce**
* Build an ISO
* Run `sudo make testraid -- --uefi`
* Wait through install and first boot, which complete successfully
**Actual behavior**
Once the RAID disk-failure simulation wipes the primary disk and reboots, OVMF falls through to its interactive shell instead of booting VyOS:
```
Press ESC in 1 seconds to skip startup.nsh or any other key to continue.
Shell>
```
No OS boots, so the harness times out waiting for a login prompt:
```
ERROR - Timeout waiting for VyOS system
pexpect.exceptions.TIMEOUT: Timeout exceeded.
at loginVM() (scripts/check-qemu-install:350).
```