diff --git a/target/linux/ixp4xx/harddisk/config-default b/target/linux/ixp4xx/harddisk/config-default
index 6dfaae0a8d..ba39e85f05 100644
--- a/target/linux/ixp4xx/harddisk/config-default
+++ b/target/linux/ixp4xx/harddisk/config-default
@@ -12,11 +12,8 @@ CONFIG_USB_EHCI_TT_NEWSCHED=y
 CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_OHCI_LITTLE_ENDIAN=y
 CONFIG_USB_STORAGE=y
+CONFIG_EXT2_FS=y
 CONFIG_EXT3_FS=y
-CONFIG_EXT3_FS_XATTR=y
-CONFIG_EXT3_FS_POSIX_ACL=y
-CONFIG_EXT3_FS_SECURITY=y
 CONFIG_JBD=y
-CONFIG_FS_MBCACHE=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_REISERFS_FS=y