diff --git a/lagarto-ox.nix b/lagarto-ox.nix
index 096f268..bf8bca6 100644
--- a/lagarto-ox.nix
+++ b/lagarto-ox.nix
@@ -494,6 +494,7 @@
 
       # Set kernel bootcmd options.
       #    rdinit=/preinit          boot custom preinit script
+      #    console=ttyS0,115200n8   use serial driver (slow)
       # Systemd options
       #    systemd.log_level=debug
       #    systemd.log_target=console
@@ -511,7 +512,7 @@
     in prev.runCommand "uboot.txt" {} ''
       cat > $out <<EOF
       xtrace=yes
-      bootargs=root=/dev/ram0 loglevel=7 rw earlycon=sbi console=ttyS0,115200n8 debug2 init=${init}
+      bootargs=root=/dev/ram0 loglevel=7 rw earlycon=sbi console=hvc0 debug2 init=${init}
       ramdisk_size=$(stat --format %s $(readlink -f ${initrd}))
       bootcmd=fdt print; booti \''${kernel_addr_r} \''${ramdisk_addr_r}:\''${ramdisk_size} \''${fdtcontroladdr}
       EOF