TIZEN_VC_MEM \
"8250.nr_uarts=1 dma.dmachans=0x7f35 bcm2709.serial=0xed6687d3 " \
"bcm2709.uart_clock=48000000 dwc_otg.lpm_enable=0\0" \
- "opts=loglevel=4\0" \
+ "opts=loglevel=4 partition_ab=a\0" \
"dfu_usb_con=0\0" \
"dfu_interface=mmc\0" \
"dfu_device=" __stringify(CONFIG_MMC_DEFAULT_DEV) "\0" \