identify the boot drive by id
exec > /dev/console 2>&1
echo "made it to the rootfs! Powering down."
-echo "dracut-root-block-success" | dd oflag=direct,dsync of=/dev/sdb
+echo "dracut-root-block-success" | dd oflag=direct,dsync of=/dev/disk/by-id/ata-disk_marker
poweroff -f
mkdir -p "$TESTDIR"/ESP/EFI/BOOT
test_dracut \
--modules 'rootfs-block test' \
- --kernel-cmdline 'root=/dev/sdc ro rd.skipfsck rootfstype=squashfs' \
+ --kernel-cmdline 'root=/dev/disk/by-id/ata-disk_root ro rd.skipfsck rootfstype=squashfs' \
--drivers 'ahci sd_mod squashfs' \
--uefi \
"$TESTDIR"/ESP/EFI/BOOT/BOOTX64.efi