diff --git a/hwpack/am335x-boneblack.conf b/hwpack/am335x-boneblack.conf
index b75b5cc..c25bd83 100644
--- a/hwpack/am335x-boneblack.conf
+++ b/hwpack/am335x-boneblack.conf
@@ -58,6 +58,8 @@ need_am335x_firmware=1
 SERIAL="ttyO0"
 SERIAL_CONSOLE="${SERIAL},115200n8"
 
+conf_optargs="capemgr.disable_partno=BB-BONE-EMMC-2G"
+
 USE_KMS=1
 
 conf_note="Note: During the install use a 5Volt DC power supply as USB does not always provide enough power."
diff --git a/mk_mmc.sh b/mk_mmc.sh
index 92d4083..6e7e0af 100755
--- a/mk_mmc.sh
+++ b/mk_mmc.sh
@@ -443,6 +443,7 @@ boot_uenv_txt_template () {
 		__EOF__
 
 		cat >> ${TEMPDIR}/bootscripts/netinstall.cmd <<-__EOF__
+			optargs=${conf_optargs}
 			expansion_args=setenv expansion
 		__EOF__
 		;;
@@ -452,6 +453,7 @@ boot_uenv_txt_template () {
 		__EOF__
 
 		cat >> ${TEMPDIR}/bootscripts/netinstall.cmd <<-__EOF__
+			optargs=${conf_optargs}
 			expansion_args=setenv expansion
 		__EOF__
 		;;
@@ -461,6 +463,7 @@ boot_uenv_txt_template () {
 		__EOF__
 
 		cat >> ${TEMPDIR}/bootscripts/netinstall.cmd <<-__EOF__
+			optargs=${conf_optargs}
 			expansion_args=setenv expansion
 		__EOF__
 		;;