diff --git a/target/linux/ar71xx/config-2.6.26 b/target/linux/ar71xx/config-2.6.26
index 57393415be..888635a5fe 100644
--- a/target/linux/ar71xx/config-2.6.26
+++ b/target/linux/ar71xx/config-2.6.26
@@ -21,7 +21,7 @@ CONFIG_BITREVERSE=y
 # CONFIG_BROADCOM_PHY is not set
 CONFIG_CEVT_R4K=y
 CONFIG_CLASSIC_RCU=y
-CONFIG_CMDLINE="root=/dev/mtdblock2 rootfstype=squashfs,yaffs,jffs2 noinitrd console=ttyS0,115200 init=/etc/preinit"
+CONFIG_CMDLINE="rootfstype=squashfs,yaffs,jffs2 noinitrd console=ttyS0,115200 init=/etc/preinit"
 CONFIG_CPU_BIG_ENDIAN=y
 CONFIG_CPU_HAS_LLSC=y
 CONFIG_CPU_HAS_PREFETCH=y
diff --git a/target/linux/ar71xx/config-2.6.27 b/target/linux/ar71xx/config-2.6.27
index 61aaeb6ba1..2d7d579862 100644
--- a/target/linux/ar71xx/config-2.6.27
+++ b/target/linux/ar71xx/config-2.6.27
@@ -22,7 +22,7 @@ CONFIG_BITREVERSE=y
 # CONFIG_BROADCOM_PHY is not set
 CONFIG_CEVT_R4K=y
 CONFIG_CLASSIC_RCU=y
-CONFIG_CMDLINE="root=/dev/mtdblock2 rootfstype=squashfs,yaffs,jffs2 noinitrd console=ttyS0,115200 init=/etc/preinit"
+CONFIG_CMDLINE="rootfstype=squashfs,yaffs,jffs2 noinitrd console=ttyS0,115200 init=/etc/preinit"
 CONFIG_CPU_BIG_ENDIAN=y
 CONFIG_CPU_HAS_LLSC=y
 CONFIG_CPU_HAS_PREFETCH=y