diff --git a/hw/lm32_boards.c b/hw/lm32_boards.c
index b76d800..973f89e 100644
--- a/hw/lm32_boards.c
+++ b/hw/lm32_boards.c
@@ -290,6 +290,9 @@ static QEMUMachine lm32_evr_machine = {
     .name = "lm32-evr",
     .desc = "LatticeMico32 EVR32 eval system",
     .init = lm32_evr_init,
+    .no_floppy = 1,
+    .no_cdrom = 1,
+    .no_sdcard = 1,
     .is_default = 1
 };
 
@@ -297,6 +300,9 @@ static QEMUMachine lm32_uclinux_machine = {
     .name = "lm32-uclinux",
     .desc = "lm32 platform for uClinux and u-boot by Theobroma Systems",
     .init = lm32_uclinux_init,
+    .no_floppy = 1,
+    .no_cdrom = 1,
+    .no_sdcard = 1,
     .is_default = 0
 };
 
diff --git a/hw/milkymist.c b/hw/milkymist.c
index 2e7235b..d58afe4 100644
--- a/hw/milkymist.c
+++ b/hw/milkymist.c
@@ -207,6 +207,8 @@ static QEMUMachine milkymist_machine = {
     .name = "milkymist",
     .desc = "Milkymist One",
     .init = milkymist_init,
+    .no_floppy = 1,
+    .no_cdrom = 1,
     .is_default = 0
 };